Conférences - Algèbre

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Verona University & University of Sfax

Email.: ihsen_yengui@yahoo.fr

CONSTRUCTIVE ALGEBRA, LOGICS, COMPUTER ALGEBRA, ALGEBRAIC GEOMETRY.

The workshop is supported by the Department of Mathematics "Giuseppe Peano" of the University of Torino.

American University of Sharjah (AUS)

The main objective of the conference is to provide a forum for researchers and scientists working in all fields of mathematics, statistics and related areas from both academia and industry to exchange research ideas and have in-depth discussions of recent advances in mathematical research. The technical program will include special sessions in algebra, coding theory, data mining and machine learning, mathematical biology, topology and others, as well as many contributed sessions.

Tél.: [00971 6 5152928];     Email.: hsulieman@aus.edu

Algebra & Its Applications, Analysis, Applied Mathematics, Differential Equations, Discrete Mathematics, Financial Mathematics, Mathematics Education, Number Theory, Numerical Analysis, Computational Mathematics, Probability Theory & Applications, Machine Learning and Data Mining, Mathematical Biology, Topology and Geometry, Statistics

Mathématiques appliquées (en général),    Mathématiques numériques

University of Utah

The study of Riemann surfaces and their moduli spaces brings together disparate fields including geometry, topology, dynamics and algebra. This weekend conference will include two mini-courses by Dawei Chen and Chris Leininger focusing on the algebraic and geometric aspects of this topics and two research talks by Diana Davis and Chaya Norton. The intended audience for this conference is early career mathematicians, especially advanced graduate students and postdocs.

CoCoA is a computer algebra system, which specializes in handling ideals and modules over rings of multivariate polynomials. The techniques used are mainly based on the theory of Gröbner bases. Continuing the series of COCOA schools and workshops which have been organized since 1999 in Torino, Italy, the International Workshop on Computer Algebra: COCOA 2020 will take place in March 9-15, 2020 at Hue University of Education, Hue city, Vietnam. The aim of this workshop is to offer researchers an exposition to contemporary research topics in Computer Algebra and Computational Commutative Algebra and to give an opportunity for young researchers to learn recent developments in these research areas and to discuss their topics with other researchers and well-known professors.

This workshop will survey notable developments and applications of higher category theory; it will be a venue for end-users to share their vision of how to apply the theory, as well as developers to share technical advancements. It will consist of 6 series of 3 lectures, each given by instrumental end-users & developers of higher category theory, together with a few question-answer sessions. Each lecture series will be tailored to a diverse audience, accessible to graduate students and non-expert researchers with some background in homological also algebra. The content of these lecture series will concern the following topics.

Kyoto University/Toho University

Logique mathématique et fondements,    Théorie de l'information, fondations de l'informatique

The school is devoted to braids and their different applications and aspects. This tenth edition of Winter Braids is supported by the Centro De Giorgi, GDR Tresses, GDR Singularités, and ANR LISA. Besides the main lectures, there will be short talks and a poster session devoted to student presentations (not necessarily focused on braids or their generalizations).

The winter school will present two incarnations of the implicit function theorem to master and PhD students: the implicit function theorem of Nash and Moser, and the implicit function theorem in scale calculus and polyfold-theory as developed by Hofer, Wysocki and Zehnder. There will be two mini-courses on the theoretical framework of each incarnation which will be complemented by talks on classical and current applications to analysis and geometry.

Cours et événements pour étudiants en physique,    Géométrie et topologie

This is the forth edition of the winter school held in Toblach in winter 2017, winter 2018 and winter 2019. There will be three minicourses, some talks and ample time for discussion.

Faculté des Sciences Aïn Chock, Maroc

Cette conférence internationale s'inscrit dans la synergie entre les équipes de recherche marocaines et les industriels nationaux, et de faire le point sur les avancées conceptuelles et méthodologiques de disciplines discutées lors de cette rencontre. Elle a pour but de réunir les enseignants chercheurs et les doctorants et permettre ainsi aux jeunes chercheurs de présenter et de discuter leurs travaux devant un panel de spécialistes et de professeurs universitaires.

Email.: taousm@hotmail.com

Algèbre, Théorie des Nombres, Mathématiques Discrètes, Cryptographie, Théorie des Codes

Théorie des nombres, arithmétique,    Cryptographie, blockchain et sécurité de l'information

Banff International Research Station for Mathematical Innovation and Discovery

The modern approaches to computing algebraic K-groups step through equivariant commutative ring spectra via the natural S1-action on topological Hochschild homology. Ongoing and transformative work by Bhatt--Morrow-Scholze in p-adic Hodge theory uses cyclotomic spectra and therefore subtle equivariant information. This workshop, at the vanguard of work in this area, seeks to bring together experts in algebraic topology, (derived) algebraic geometry, and number theory to explore these exciting new connections.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Géométrie et topologie,    Mathématiques numériques

A one day conference on the interactions of algebra, geometry and combinatorics. Some NSF supported funding is available for graduate students and postdocs to travel to the event.

Théorie des graphes et combinatoire,    Géométrie et topologie

Les journées d’algèbre de Caen de 2020 porteront sur les développements récents en théorie des représentations, théorie des algèbres amassées et plus généralement en combinatoire algébrique.

Géométrie et topologie,    Cours et évènements pour étudiants en mathématiques

This Spring School will gather together PhD students and junior researchers who use category-theoretic ideas or techniques in their research. It will provide a forum to learn about important themes in contemporary category theory, both from experts and from each other. Three invited speakers will each present a three-hour mini-course, accessible to non-specialists, introducing an area of active research. There will also be short talks contributed by PhD students and postdocs, and a poster session. The focus of the Spring School is on aspects of pure category theory as they interact with research in other areas of algebra, geometry, topology and logic. Any "categorical thinker" - that is, any mathematician whose work makes use of categorical ideas - is welcome to participate.

Email.: jct.uk.2020@gmail.com

Category Theory, Grothendieck Toposes, Topos Theory, Higher Category Theory, Model Categories, Derived and Triangulated Categories

Géométrie et topologie,    Cours et évènements pour étudiants en mathématiques

AMS, American Mathematical Society

Department of Mathematics, University of Virginia, Charlottesville

This workshop celebrates the work of G.T. Whyburn Professor of Mathematics Brian J. Parshall and his collaborators. In the course of his career, together with Ed Cline and Leonard Scott (CPS) as well as with others, Brian has made important contributions to the representation theory of algebraic and quantum groups. The workshop is held on the occasion of his retirement.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

LOEWE research unit Uniformized Structures in Arithmetic and Geometry

Centre International de Rencontres Mathématiques (CIRM)

Simons Center for Geometry and Physics, Long Island, NY

The theme of the workshop is structural properties of Lagrangian Floer theory and its applications. Topics will include the behavior of Floer cohomology under various kinds of surgery; formulas for the behavior of disk potentials under Lagrangian surgery or mutation; potentials with values in the Chekanov-Eliashberg dg-algebra with loop space coefficients; techniques for showing unobstructedness of Lagrangians; the construction of generators of the Fukaya category; equivariant Floer theory and relations to vortex invariants; and the classification and construction of Lagrangian submanifolds. The goal of this workshop is to develop a community of junior and senior researchers in Lagrangian Floer theory.

Johns Hopkins University

The Southern Regional Algebra Conference is an annual weekend conference that has been in existence since 1988. It serves an important role as part of the algebra research community in the Gulf Coast Region. Graduate students are strongly encouraged to participate. There is no registration fee. Presentations will be 25 minutes in length. The deadline to submit abstracts for SRAC 2020 is February 1, 2020.

Email.: guy.biyogmam@gcsu.edu

https://sites.google.com/view/imperial-syz

The workshop provides an international forum for recent advances in mirror symmetry, with an emphasis on the celebrated SYZ conjecture. Various approaches to this conjecture, based on algebraic, symplectic and non-archimedean geometry, will be presented. Along with more focused research-oriented talks, there will be special talks aimed at establishing links among different points of view .

Centre International de Rencontres Mathématiques (CIRM)

Significant developments in the spectral analysis of non-self-adjoint operators since the turn of the millennium include the explicit construction of well-localised almost-eigenvectors, the systematisation of the notion of pseudospectra and the rigorous setting of unbounded solvers for evolution problems. At the same time, a deep understanding of complicated physical phenomena such as cloaking in metamaterials, turbulence and explosive behaviour, has been achieved by means of close examination of the underlying non-self-adjoint operators. These developments involve combining techniques from diverse disciplines and in recent years groups who had been working on similar problems from different perspectives, often using different terminology, have been unaware of each other.

This workshop will cover all areas of recent developments in algebraic K-theory, motivic cohomology and motivic homotopy theory.

Mathematical Sciences Research Institute (MRSI)

This workshop will focus on recent developments in factorization homology, parametrized homotopy theory, and algebraic K-theory. These seemingly disparate topics are unified by a common methodology, which leverages universal properties and unforeseen descent by way of higher category theory. Furthermore, they enjoy powerful and complementary roles in application to the cyclotomic trace.

This workshop celebrates the accomplishments of the Einstein project that started in April 2015 and ends in July 2020. The original proposal centered around 20 concrete problems that were organized into four themes: maximum likelihood geometry, euclidean distance optimization, convex algebraic geometry, and classical moduli spaces. More than half of the 20 problems have since been solved. The problems and their solutions will be featured in the one-hour lectures, while the shorter lectures present recent research results on other topics in Nonlinear Algebra.

Algebraic Geometry

This workshop, sponsored by AIM and the NSF, will be devoted to bringing together physicists and mathematicians to concentrate on a variety of problems concerning special holonomy compactifications of M-theory.

University of Glasgow

Algebra & Representation Theory, Mathematical Physics, Number Theory, Operator Algebras, Analysis, Topology, Algebraic Geometry, Group Theory, Combinatorics

Centre International de Rencontres Mathématiques (CIRM)

Centre International de Rencontres Mathématiques (CIRM)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Centre International de Rencontres Mathématiques (CIRM)

Centre International de Rencontres Mathématiques (CIRM)

MPI für Mathematik in den Naturwissenschaften Leipzig

This year's speaker for the Chow lectures is June Huh (Instiute for Advanced Study, Princeton). The general topic of this series is "Combinatorics and geometry of Lorentzian polynomials".

Centre International de Rencontres Mathématiques (CIRM)

This workshop, sponsored by AIM and the NSF, will explore the applications to chromatic homotopy and algebraic K-theory of the new computational techniques in equivariant stable homotopy. The recent renaissance in equivariant stable homotopy theory has provided several new tools which allow us to better understand classical problems and carry out new computations.

University of Nebraska-Lincoln

We are pleased to announce a conference to celebrate the many accomplishments of Professor Brian Harbourne. The conference will feature plenary talks by experts in algebraic geometry and commutative algebra as well as shorter talks or posters by recent PhDs.

This conference is part of the Shanks Workshops held at Vanderbilt University and will take place on May 18 and May 19 2020. The topics will focus on new developments around the area of partitions, and especially ranks, cranks, and other partition statistics. This will especially focus on the interaction between this field and modular type objects.

This is a 5-day workshop to be held at UQAM in Montreal, focusing on special geometric structures in Riemannian geometry.

Centre International de Rencontres Mathématiques (CIRM)

CIRM – Centre International de Rencontres Mathématiques

Purity and approximation theory influence a wide range of areas in mathematics including model theory of modules, silting and tilting theory, cotorsion pairs and abelian model structures and many more. Moreover, related classification problems in abelian and triangulated categories are strongly connected with spaces such as Ziegler spectra and prime spectra. We aim to bring together experts and young researchers with an interest in these topics to share their different viewpoints and approaches. The workshop will include five mini lecture series introducing a range of fundamental topics, and contributed talks.

Email.: paths2020@ateneo.univr.it

The goal is to air fresh perspectives and open problems in combinatorics and algebra, those that the speakers think will be important for the future.

The Fields Institute

The eighth edition of ARTA will present recent research developments in tilting and \tau-tilting theory, torsion theory, combinatorial methods in representation theory, geometric representation theory, module categories and self-injective algebras, homological methods in representation theory, triangulated categories, derived categories and relationship with cluster algebras. We will also explore the deep links with other closely related areas such as Lie theory and geometry, as well as possibly new research directions that would appear between now and the conference.

Centre International de Rencontres Mathématiques (CIRM)

1. Igusa-type zeta functions (Archimedean, p-⁠adic, motivic, topological), and related Poincaré series, 2. Zeta functions of groups, algebras, modules and representations, 3. Real singularities and zeta functions, 4. Zeta function methods in mathematical physics, 5. Zeta functions in combinatorics, 6. Bernstein polynomials

CIRM – Centre International de Rencontres Mathématiques

The study of the global structure of holomorphic Poisson structures is still in its infancy. Except for papers by Polishchuck, Druel, Gualtieri-Pym, Lima-Pereira, and Pym, not much is known on the subject. Moreover, with the exception of Druel's results, they all concern Poisson structures on projective spaces or Fano manifolds. A systematic study of the structure of varieties carrying Poisson structures remains to be done. The goal of this Research in Pairs is to start carrying out such systematic study.

Aristotle University of Thessaloniki

Centro di Ricerca Matematica Ennio De Giorgi

The conference is the third meeting within prof. Le Donne's ERC project GeoMeG (Geometry of Metric Groups). The idea for the 2020 meeting is to focus on the following subjects: 1) large-scale geometry of nilpotent groups (and as the sub-Riemannian geometry appear as asymptotic cone) 2) Heintze groups (= homogeneous negatively curved manifolds) and their boundaries (which are nilpotent groups, possibly equipped with non-smooth distances) 3) geometry of solvable groups or, more generally, the large scale geometry of Lie groups. Tentative list of speakers: Manuel Amann, Marc Burger, Matias Carrasco Piaggio, Yves Cornulier, Moon Duchin, Tullia Dymarz, David Fisher, Misha Gromov, David Kyed, Grigoriy Margulis, Nicolas Monod, Pierre Pansu, Frederic Paulin, Roman Sauer, Yehuda Shalom, Xiangdong Xie, Robert Young.

Géométrie et topologie,    Théorie des groupes

A conference of the Spanish Network in Group Theory celebrating Pavel Shumyatsky's 60th birthday. The conference programme will include invited lectures, a limited number of contributed talks and a poster session.

Email.: pavel60conference@gmail.com

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

The international Conference "ULTRAMATH 2020" aims to present recent results in the whole spectrum of mathematics which are grounded on the use of ultrafilters and ultraproducts. Its main goals: • Disseminate information about the various techniques related to the use of ultrafilters and ultraproducts, and their potential to attack open problems. • Bring together researchers with different backgrounds, and encourage their collaborations and interactions, especially on topics connecting different areas of mathematics.

Additive and Combinatorial Number Theory. • Combinatorics and Ramsey Theory. • Algebra and Geometry. • General Topology. • Measure Theory. • Ergodic Theory and Dynamics. • Functional Analysis and Metric Spaces. • Nonstandard Analysis and Model Theory. • Generalized Spaces and Differential Equations. • Set Theory.

Théorie des nombres, arithmétique,    Théorie des graphes et combinatoire

Centre International de Rencontres Mathématiques (CIRM)

Théorie des groupes,    Géométrie et topologie

Alfréd Rényi Institute of Mathematics

Department of mathematics, Kyoto University

The workshop will consist of mini-courses on q-series, mock and partial theta functions in addition to usual research talks related to the theme.

Institute for Mathematical Sciences/National University of Singapore

Interactions between people working in Index Theory and Complex Geometry are increasing. One of the reasons is that although researchers use different tools and techniques, their studies have profound connections and are understandable to people from both sides. Sharing experiences and techniques is an opportunity for them to accelerate collaboration works. Index Theory and Complex Geometry recently both have spectacular developments. In this program, we plan to dig out more materials on complex geometry side of global analysis led by recent development on geometric hypoelliptic Laplacians.

Géométrie et topologie,    Cours et évènements pour étudiants en mathématiques

CIRM – Centre International de Rencontres Mathématiques

The differential – or Tamarkin-Tsygan calculus – of an associative algebra provides rich information about the algebra, it englobes Hochschild (co)homology with its algebraic structure and the Connes differential. It has been proven recently by Armenta and Keller that it is a derived invariant. On the other hand a relative version of Hochschild cohomology exists from long, it has been rarely used because of the lack of relation with the usual theory. Kaygun has obtained in 2012 a long exact sequence relying the theories. A main purpose will be to determine if a relative differential – or Tamarkin-Tsygan – calculus exists, in particular a relative Connes differential and to establish a Jacobi-Zariski-like relation with the usual calculus.

​Our second aim is to show that the class of algebras satisfying Han’s conjecture is closed under split extensions of algebras by any multiplicative bimodule which is just of finite projective dimension and tensor nilpotent.

Banff International Research Station

The Banff International Research Station will host the "Interactions of gauge theory with contact and symplectic topology in dimensions 3 and 4" workshop in Banff from June 7 to June 12, 2020. This workshop will highlight new results in low-dimensional topology coming from a wide range of geometric methods. Low-dimensional topology studies the global properties of geometric spaces in dimensions 3 and 4, such as 3-dimensional space and 4-dimensional space-time.

Banff International Research Station for Mathematical Innovation and Discovery

One of the big ideas in modern mathematics is that integers (like 1, 2, 3, 4, 5, ...) in many formal ways behave similarly to polynomial equations (like y = x^2, which defines the parabola). Frequently, and perhaps surprisingly, many questions in mathematics are easier to study for polynomials than for integers. Hence intuition and results for polynomials can tell us about the integers. Commutative algebra lives at the intersection of both perspectives, and one fundamental object of study is polynomials with integer coefficients, this is called the mixed characteristic case. Recently, Yves Andre proved a long standing open conjecture in commutative algebra in this mixed characteristic setting, relying on constructions of Scholze (and then Bhatt gave a simplified proof of the same conjecture). This workshop aims to foster and discuss these and other recent tools, to study some remaining open problems in mixed characteristic. The workshop will bring together a diverse group of researchers from different fields, such as commutative algebra, algebraic geometry, and number theory.

Centre International de Rencontres Mathématiques (CIRM)

The conference on L-functions and Iwasawa theory will take place in Station biologique de Roscoff (SBR) from June 8 to June 12, 2020. This conference is funded by Centre Franco-Indien pour la Promotion de Recherche Avancée (CEFIPRA). Support is also provided by Agence Nationale de la Recherche (ANR) project CoLoss.

One of the fascinating bridges between classical mechanics and quantum physics is expressed in the fact that the length spectrum and the Laplace spectrum of a closed Riemannian manifold determine each other (at least generically). Similarly, the set of lengths of the closed orbits of a billiard table and the Laplace spectrum of that table determine each other, at least for certain billiard tables. The main goal of this school is to introduce graduate students and young researchers to basic facts on these two spectra, and to the above correspondence. The length spectrum generalizes to the action spectrum of an autonomous Hamiltonian function. Floer homology filtered by the action spectrum can be used to construct so-called action selectors, that are a principal tool in modern symplectic geometry and dynamics, yielding simple proofs of Gromov's nonsqueezing theorem, the Weinstein conjecture in R^{2n}, the existence of closed orbits in a magnetic fields, etc. The second goal is to understand this relevance of the action spectrum in symplectic geometry. A third, more hypothetical, goal is to see which parts of the two sides can be related.

Prerequisites: We expect that students have had courses in real analysis of several variables, know what an ordinary differential equation is, and have followed a course on curves and surfaces. More knowledge is useful, but not necessary to follow the lectures.

Géométrie et topologie,    Cours et événements pour étudiants en physique

Mathematical Sciences Research Institute (MSRI)

The two topics, combinatorial theory of free resolutions and differential graded algebra techniques in homological algebra, each have a long and rich history in commutative algebra and its applications to algebraic geometry. Free resolutions are at the center of much of the study in the field and these two approaches give powerful tools for their study and their application to other problems. Neither of these topics is generally covered in graduate courses. Furthermore, recent developments have exhibited exciting interplay between the two subjects. The purpose of the school is to introduce the graduate students to these subjects and these new developments. The school will consist of two lectures each day and carefully planned problem sessions designed to reinforce the foundational material and to give them a chance to experiment with problems involving the interplay between the two subjects.

Cours et événements pour étudiants en physique,    Théorie des graphes et combinatoire

The main theme of the proposed school are graph algebras, which are objects of growing interest that lie at the boundary between algebra and analysis among other mathematical fields. Despite being introduced only about a decade ago, Leavitt path algebras, as algebraic counterpart of graph C*-algebras, have arisen in a variety of different contexts as diverse as symbolic dynamics, noncommutative geometry, representation theory, and number theory. In particular, Leavitt path algebras can be seen as an algebraic avenue paving the road to understanding its more complex operator theory sibling, graph C*-algebras. Because of the central role these analytic objects play in both the genesis and the ongoing development of Leavitt path algebras, no history of the subject would be complete without a discussion on this topic and its close connexion to Leavitt path algebras.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Queen's University, Kingston, Ontario

Structure of finite dimensional algebras Structure of module categories Auslander--Reiten components Homological methods in representation theory Homological conjectures Algebras of finite global dimension Self-injective algebras Tame algebras Combinatorial aspects of representation theory Geometry of algebras and modules Homological invariants of algebras and modules Triangulated categories and tilting theory Relations of the above topics with Lie theory, Singularity theory, Cohen--Macaulay modules, quantum groups and other algebraic structures.

The school aims at introducing young researchers to the very active and exciting research area related to the so called Langland correspondence. The school will discuss the recent developments concerning local Langlands, together with the more arithmetic recent achievements.

University of Milano-Bicocca, Department of Mathematics

The two-year cycle of conferences "GABY - Groups & Algebras in Bicocca for Young algebraists" stems from the will to support young researchers in group theory, algebra and related topics. The convention is committed to provide an introduction to those topics of group theory and algebra that may not be readily available in any institution and that cover some of the most inviting research topics. Each conference in the series consists of three mini-courses complemented by lectures, posters, and discussion sessions. In addition, we give participants the opportunity to present their research and to expand their network of contacts with other researchers in the areas of interest to them.

Event organization;     Email.: gaby2020milan@gmail.com

representations of groups, geometric group theory, growth of groups, amenable groups, p-adic groups

Théorie des groupes,    Théorie des graphes et combinatoire

Mathematical Sciences Research Institute (MSRI)

This summer graduate school is a collabroation between MSRI and the FORTH-IACM Institute in Crete. The purpose of the school is to introduce graduate students to some of the most important geometric evolution equations. This is an area of geometric analysis that lies at the interface of differential geometry and partial differential equations. The lectures will begin with an introduction to nonlinear diffusion equations and continue with classical results on the Ricci Flow, the Mean curvature flow and other fully non-linear extrinsic flows such as the Gauss curvature flow. The lectures will also include geometric applications such as isoperimetric inequalities, topological applications such as the Poincar? onjecture, as well as recent important developments related to the study of singularities and ancient solutions.

Mathematical Sciences Research Institute (MSRI)

The purpose of the summer school will be to introduce graduate students to effective methods in algebraic theories of differential and difference equations with emphasis on their model-theoretic foundations and to demonstrate recent applications of these techniques to studying dynamic models arising in sciences. While these topics comprise a coherent and rich subject, they appear in graduate coursework in at best a piecemeal way, and then only as components of classes for other aims. With this Summer Graduate School, students will learn both the theoretical basis of differential and difference algebra and how to use these methods to solve practical problems. Beyond the lectures, the graduate students will meet daily in problem sessions and will participate in one-on-one mentoring sessions with the lecturers and organizers.

This will be a twinnd conference held simultaneously at Perimeter Institute in Waterloo, Canada and Max Planck Institute in Bonn, Germany. The two venues will be connected by live video streams, during both the talks themselves as well as informal discussion sessions. The concept of the twinned conference is motivated by the desire to reduce environmental impact of conference travels. Our hope is that this initiative will help reduce transatlantic flights, while still promoting long distance interactions.

This will be a twinnd conference held simultaneously at Perimeter Institute in Waterloo, Canada and Max Planck Institute in Bonn, Germany. The two venues will be connected by live video streams, during both the talks themselves as well as informal discussion sessions. The concept of the twinned conference is motivated by the desire to reduce environmental impact of conference travels. Our hope is that this initiative will help reduce transatlantic flights, while still promoting long distance interactions.

Centre International de Rencontres Mathématiques (CIRM)

Since the time of Bernhard Riemann, the influence of analytical and algebraic methods based on Riemann surfaces, algebraic curves and abelian varieties, has been crucial in the development of other areas in physics and mathematics, as well as applications to other areas. These topics have been a very effective tool in solving problems in commutative algebra, mathematical-physics, algebraic geometry, differential geometry, complex and hyperbolic geometry, dynamical systems, singularity theory, topology and other interdisciplinary branches of mathematics that are constantly evolving. The Iberoamerican Geometry Congresses (IGC) have the particularity of gathering researchers and students from various mathematical communities of America and other regions of the world, with the aim of fostering an exchange of ideas between mathematicians in different fields, linked by the geometry of Riemann surfaces, abelian varieties and related fields.

CIRM – Centre International de Rencontres Mathématiques

Let G be a finite group and Ω be a domain in C n such that G acts on Ω. Assume that H ⊆ Hol(Ω) be a Hilbert space with a G-invariant reproducing kernel K, then {P% : % ∈ Gb} is a family of orthogonal projections which add up to the identity operator on H, where Gb is the unitary dual of G. One of the basic consequences is the description of reducing submodules of H, viewed as a module over the ring of invariants C[z] G, via this family of projections. We are interested to study the questions of minimality of these reducing submodules and mutual inequivalence over the invariant ring C[z] G, where G is a finite pseudo-reflection group. We feel that the Chevalley-Shephard-Todd theorem characterizing the finite pseudo-reflection groups in terms of their invariant ring and our extension of this theorem in the category of holomorphic functions could be a key step towards this study

National Center for Theoretical Sciences (NCTS), Taiwan

One fruitful approach in algebraic number theory and arithmetic geometry is to study arithmetic invariants varying over families. In Iwasawa theory, one obtains p-adic families, for example, by varying number fields (as in classical Iwasawa theory) or by considering p-adic families of modular forms (as in Hida theory). The fact that studying arithmetic invariants over families is an important perspective in number theory is highlighted by Galois deformation theory, which played a crucial role in Fermat’s last theorem. One of the central themes of this program, is whether interesting arithmetic invariants (such as Iwasawa mu-invariant) associated to L-functions are generically non-trivial over families, which are often encoded by whether analytic invariants (such as special values of L-functions) are generically non-trivial modulo p. There have been numerous developments on the non-triviality of these arithmetic/analytic invariants, which have had various arithmetic applications (for instance, towards proving Iwasawa main conjectures). It is time to bring experts together to explore new ideas for the non-vanishing of L-values. Therefore, we plan to devote the first week of the program to a rigorous exposition of the ideas in the pioneering works, and the second week of the program will be devoted to the recent developments by some of the leading experts in the area.

Institute of Mathematics & its Applications (IMA)

The IMA is pleased to announce the Seventh Biennial IMA Conference on Numerical Linear Algebra and Optimization. The meeting is co-sponsored by SIAM, whose members will receive the IMA members’ registration rate. The success of modern codes for large-scale optimization is heavily dependent on the use of effective tools of numerical linear algebra. On the other hand, many problems in numerical linear algebra lead to linear, nonlinear or semidefinite optimization problems. The purpose of the conference is to bring together researchers from both communities and to find and communicate points and topics of common interest. Conference topics include any subject that could be of interest to both communities

Universität Paderborn - Institut für Mathematik

The theme of the conference is reductive groups in a broad sense, i.e. we intend to have talks on harmonic analysis, representation theory, automorphic forms, geometry and ergodic theory.

Hausdorff Center for Mathematics (hcm)

The Circle Method emerged one hundred years ago from ideas of Ramanujan, Hardy and Littlewood, and quickly became the most powerful analytic method for counting solutions to Diophantine equations. As the Circle Method enters its second century, new work is making significant advances both in strengthening results in classical Diophantine settings, and in demonstrating applications in novel settings. This includes function field, number field, adelic, geometric, and harmonic analytic applications, with striking consequences in areas such as ergodic theory, subconvexity for L -functions, and the Langlands program. This summer school for graduate students and postdocs will present accessible lecture series that demonstrate how to apply the Circle Method in a wide variety of settings.

CIRM – Centre International de Rencontres Mathématiques

By set estimation, we mean the study of an inverse statistical problem to build consistent inference procedures and associated algorithms, starting from eventually sparse observations. Talks will be devoted to this question by firstly presenting the set of interest and its properties then the methods developed for its estimation.The program will include talks directed toward theory and applications. Young researches will be encouraged to present their work.

International Centre for Mathematical Sciences, Edinburgh; UK

Andrew Ranicki and his theory of algebraic surgery played a central role in linking manifold theory, algebraic K-theory, and its close cousin L-theory. These areas have seen great developments and advances in the last decade from distinct research communities. This workshop will bring together mathematicians working on the topology of high-dimensional manifolds and their automorphisms with those working on the algebraic K-theory (and its cousins hermitian K-theory and L-theory) of rings and ring spectra, in order to share recent progress in these areas and kindle a fresh interaction between them.

Géométrie et topologie,    Théorie des graphes et combinatoire

The subject of this meeting covers valuation theory and resolution of singularities, along with some topics that are closely related like the theory of singularities of vector fields, problems concerning arc spaces or the Pierce-Birkhoff Conjecture. It is our aim to gather together researchers on these transversal subjects in order to strengthen interdisciplinarity between different thematics, to contribute to build a community of researchers working on these problems, to develop new research projects, and to support new collaborations.

Mathematical Sciences Research Institute (MSRI)

Representation Theory has undergone a revolution in recent years, with the development of what is now known as higher representation theory. In particular, the notion of categorification has led to the resolution of many problems previously considered to be intractable. The school will begin by providing students with a brief but thorough introduction to what could be termed the "bread and butter of modern representation theory", i.e., compact Lie groups and their representation theory; character theory; structure theory of algebraic groups.

Mathematical Sciences Research Institute (MSRI)

The theory of algebraic curves, arguably the oldest branch of algebraic geometry, has seen major developments in recent years, for example in the study of syzygies, and around questions about moduli spaces and Hilbert schemes of curves. The theory is rich in research activity and unsolved problems. There is an encyclopedic work by Arbarello, Cornalba, Griffiths and Harris, but there is no modern text that could be used as a textbook and that goes beyond the basics of the theory. We have embarked on a project to write a book at roughly the level of the wonderful book on complex algebraic surfaces by Arnaud Beauville.

Cours et événements pour étudiants en physique,    Géométrie et topologie

Dr. NURDIN, S.Si., M.Si. (Hasanuddin University, Makassar, Indonesia)

The 33st International Conference of The Jangjeon Mathematical Society (ICJMS2020) will be held at Hasanuddin University, Makassar, Indonesia, between Tuesday, 30th June 2020, and Thursday, 2nd July 2020.

Mathematical Analysis, Algebra and Analytic Number Theory, Combinatorics and Probability, Pure and Applied Mathematics & Statistics, Recent Advances in General Inequalities on Pure & Applied Mathematics and Related Areas, Mathematical Physics, Fractional Calculus and Its Applications, Polynomials and Orthogonal systems, Special numbers and Special functions, Q-theory and Its Applications, Approximation Theory and Optimization, Extremal problems and Inequalities, Integral Transformations, Equations and Operational Calculus, Partial Differential Equations, Geometry and Its Applications, Numerical Methods and Algorithms, Scientific Computation, Mathematical Methods and computation in Engineering, Mathematical Geosciences

Analyse,    Réunions de corps professionnels en mathématiques

EACA es el acrónimo de “Encuentros de Álgebra Computacional y Aplicaciones”. Estos encuentros están organizados por la “Red Temática de Cálculo Simbólico, Álgebra Computacional y Aplicaciones”. Con ellos se persigue un doble fin: en primer lugar, proporcionar un punto de encuentro apropiado tanto para investigadores especializados en desarrollar estas áreas como para aquellos que las aplican en sus respectivos ámbitos; en segundo lugar, apoyar y animar a la participación de jóvenes investigadores

Centre International de Rencontres Mathématiques (CIRM)

RESEARCH SCHOOL

Mathématiques appliquées (en général),    Cours et évènements pour étudiants en mathématiques

CIRM – Centre International de Rencontres Mathématiques

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Hausdorff Center for Mathematics

Bar Ilan University in Ramat Gan, Israel

Topics include all aspects of combinatorics and their relations with other parts of mathematics, physics, computer science, and biology.

Théorie des graphes et combinatoire,    Mathématiques appliquées (en général)

This workshop, sponsored by AIM and the NSF, will be devoted to the study of the geometry and arithmetic of moduli spaces associated to dynamical systems on algebraic varieties, with a particular emphasis on dynamical systems on projective space.

Mathematical Sciences Research Institute (MSRI)

The study of nonnegative polynomials and sums of squares is a classical area of real algebraic geometry dating back to Hilbert's 17th problem. It also has rich connections to real analysis via duality and moment problems. In the last 15 years, sums of squares relaxations have found a wide array of applications from very applied areas (e.g., robotics, computer vision, and machine learning) to theoretical applications (e.g., extremal combinatorics, theoretical computer science).

University of Coimbra, Portugal

This conference is dedicated to honor Alberto Elduque on the occasion of his 60th birthday. In the past 30 years, Professor Elduque has significantly contributed to the progress of Algebra, notably to the theory of non-associative graded algebras. Our aim is to bring together those mathematicians who have been important in Elduque’s scientific career, whether his professors, collaborators, students, or simply his fellow travellers in the journey of math.

Conference on algebraic, number theoretic and topological aspects of rings, algebras and polynomials. Topics include: integer-valued polynomials, polynomial functions, multiplicative ideal theory, topological methods in ring theory, Zariski-Riemann spaces of valuation domains, factorization theory in rings and semigroups, module theory and linear algebra over rings, Dedekind, Pruefer and Krull domains and generalizations

Géométrie et topologie,    Théorie des nombres, arithmétique

The purpose of the conference is to bring together people from all branches of mathematics and science with interests in recurrence sequences, their applications and generalizations, and other special number sequences.

CIRM – Centre International de Rencontres Mathématiques

The core problem of this project stems from the heuristic articulated by many authors in mathematics and mathematical physics over an extended period, (e.g. [1, 2, 6, 4], etc.) that when q 2 is a primitive ` th root of unity, there is a connection between limn→∞ TLn(q) where TLn(q) is the Temperley-Lieb algebra on the one hand, and the Virasoro algebra L = ⊕i∈ZCLi ⊕ CC on the other. The search for such a connection has hitherto led to many tantalising analogies, but as yet no definitive theorems.

We shall pursue two distinct approaches to the problem...

Northwestern University, Evanston, IL

The goal of this summer school is to introduce participants to tools and ideas from algebraic topology and homotopy theory that are used in the study of fixed point theory. The workshop will be centered around mini-courses, both on classical fixed-point theory and on modern techniques such as duality theory, spectra, and trace methods in algebraic K-theory.

The intended audience for this summer school should be familiar with the material in Hatcher (except the appendices). This reflects our goal that the school be accessible to second and third year students with an interest in algebraic topology from any PhD granting institution. The school will be structured around a few mini-courses, which will run in an active-learning style.

Géométrie et topologie,    Cours et événements pour étudiants en physique

University of Science and Technology of China (USTC)

This conference is the next edition in a long line of conferences starting in 1986 at the University of Canterbury, UK. This series of international conferences aims at bringing together leading scientists and young researchers in the field of Clifford algebras and their various applications in mathematics, physics, engineering and other applied sciences. The English mathematician and philosopher William Kingdon Clifford (1845-1879) is best remembered for his geometric algebras, nowadays better known in mathematics as Clifford algebras, named so in his honour, but he also contributed significantly to other branches of mathematics, especially geometry.

Mathématiques appliquées (en général),    Physique mathématique

University of Regensburg

Transchromatic phenomena appear in a variety of contexts. These include stable and unstable homotopy theory, higher category theory, topological field theories, and arithmetic geometry. The aim of the conference is to bring together people from all of these areas in order to understand the relationship between each others work and to further demystify the appearance of transchromatic patterns in such disparate areas.

Higher Chern classes, Volumes, L-functions, and polylogarithms, Metric structures on cohomology, vector bundles, and cycles, Higher categories and enriched structures

University of Michigan in Ann Arbor

ICERM

The structure of free resolutions plays an important role in analyzing singularities of varieties of low codimension. Codimension two Cohen-Macaulay varieties (resp. codimension three Gorenstein varieties) come from rank conditions on an n x (n+1) matrix (resp. a skew-symmetric (2n+1) x (2n+1) matrix). This workshop seeks to push such results to Cohen-Macaulay varieties of codimension three and Gorenstein varieties of codimension four.

American Institute of Mathematics (AIM)

This workshop, sponsored by AIM and the NSF, will be devoted to algorithmic randomness and its applications.

Hausdorff Center for Mathematics

Universidad de Puerto Rico

Guoliang Yu, Powell Chair in Mathematics and University Distinguished professor at Texas A&M University, will lead this series of lectures on K-theory of operator algebras and its applications to geometry and topology.

Banff International Research Station for Mathematical Innovation and Discovery

An equation is called Diophantine if whole number or fractional solutions are sought. Diophantine equations are named after Diophantus of Alexandria, a 3rd century mathematician and were popularized by Pierre de Fermat, a 17th century lawyer and amateur mathematician. Unlike most branches of mathematics, many Diophantine questions and theorems can be understood and appreciated by the general public, and the subject is a favourite with popularizers of mathematics. The methods for tackling Diophantine equations are however deep and varied, and the subject has recently experienced an explosion of new directions and results. This workshop will bring together experts and young scholars to explore these new directions and stimulate further research into Diophantine problems.

Regensburg University, Dep. of Mathematics, SFB1085 (U. Bunke, D.C. Cisinski, G. Kings )

Homotopical and higher categorical methods have seen increasing importance in mathematics, both as foundations and as computational tools. In fact, such methods merge two apparently distinct goals: understanding geometrical forms and classifying mathematical structures. This conference aims at gathering together under this perspective geometers in a rather broad sense. It seeks to foster the applications of these higher methods in the interplay between homotopy theory, arithmetic, and algebraic geometry.

Géométrie et topologie,    Théorie des nombres, arithmétique

CIRM – Centre International de Rencontres Mathématiques

Nijenhuis operators are defined to be fields of endomorphisms with vanishing Nijenhuis torsion. They appeared as independent objects and play an essential role in different branches of geometry and mathematical physics. The current state of art in this theory is as follows: The definition is well known, basic properties are understood and local normal forms are classified in certain particular cases. Our main goal is to initiate the study of Nijenhuis operators from a global viewpoint. We also aim at understanding their singularities.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

CIRM – Centre International de Rencontres Mathématiques

AMS, American Mathematical Society

This workshop will discuss results and new developments in Leibniz algebras and related topics. This includes and not limited to Lie algebras, homological algebra or non-commutative geometry.

Leibniz algebras, Lie algebras, Homological algebras.

Centre International de Rencontres Mathématiques (CIRM)

Statistique, Théorie des jeux,    Analyse

American Institute of Mathematics

This workshop, sponsored by AIM and the NSF, will be devoted to Ehrhart polynomials and quasi-polynomials. These objects are invariants of lattice and rational polytopes that are the focus of Ehrhart Theory.

CIRM – Centre International de Rencontres Mathématiques

Our main objective is to consider the general case, when the Riemannian submersion is no longer a principal fibration, and try to show that the torsion of the base still vanishes. If this conjecture is true, the full classification of geometries with parallel skew-symmetric torsion would then reduce to the study of principal bundles with parallel curvature.

Centre International de Rencontres Mathématiques (CIRM)

Analyse,    Physique de la matière condensée et des matériaux

CIRM – Centre International de Rencontres Mathématiques

Here we want to work intensively on further progress in the analysis of pseudorandom measures. In particular we focus on normality measures in the sense of Knuth, on well distribution- and correlation measures. We will write a book with a focus on metric discrepancy theory.

JEAN-MORLET CHAIR – WORKSHOP, Diophantine Problems: Determinism, Randomness, Applications, Binary Sequences, Probabilistic Limit Theorems

Géométrie et topologie,    Théorie des nombres, arithmétique

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Géométrie et topologie,    Théorie des graphes et combinatoire

Centre International de Rencontres Mathématiques (CIRM)

CIRM – Centre International de Rencontres Mathématiques

Centre International de Rencontres Mathématiques (CIRM)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Centre International de Rencontres Mathématiques (CIRM)

Centre International de Rencontres Mathématiques (CIRM)

CIRM – Centre International de Rencontres Mathématiques

Tropical matrices and their unique correspondence to weighted digraphs establish a main tool for algebraic representations and studying of combinatorial objects. With these representations sophisticated combinatorial and algorithmic aspects become transparent, making the theory more comprehensive and applicable. Tropical matrices have a very special behavior – they admit a nontrivial semigroup identity. This property is highly significant, and is carried over to any faithfully represented monoid, having direct implications in graph theory and automata theory.

CIRM – Centre International de Rencontres Mathématiques

Here we want to work intensively on problems related to the conjectures of Sarnak and Chowla. After the progress on automatic sequences achieved by C. Muellner, the focus lies on a further study of this important question by analytic and dynamic methods.

Diophantine Problems: Determinism, Randomness, Applications, Sarnak Conjecture, Automatic Sequences, Normality

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Centre International de Rencontres Mathématiques (CIRM)

Centre International de Rencontres Mathématiques (CIRM)

WORKSHOP

Mathematical Sciences Research Institute (MSRI)

The study of discrete subgroups of Lie groups and the associated locally symmetric manifolds has a long and rich history, with powerful interconnections between the geometry of the locally symmetric space, topology of towers of its finite covers, and number-theoretic aspects. More recently dynamical and probabilistic techniques have been fruitfully employed to study these groups and spaces. The workshop will take stock of recent developments in these highly active fields from a variety of backgrounds.

Centre International de Rencontres Mathématiques (CIRM)

Centre International de Rencontres Mathématiques (CIRM)

Théorie des groupes,    Physique mathématique

Center for Advanced Research for Applied Mathematics and Statistics, Manipal Academy of Higher Education, (MAHE)

The present conference shall provide a platform for leading Mathematicians and Statisticians, working around the globe in the theme area to discuss several research issues and to introduce new innovations. The main goal of the conference is to bring experts, young researchers, and students together to present recent developments in this dynamic and important field. The conference also aims to stimulate research and support the interaction between the scientists by creating an environment for the participants to exchange ideas and to initiate collaborations and professional partnerships.

Classical Matrix Theory and Linear Algebra, Nonnegative Matrices and Special Matrices, Matrices and Graphs, Combinatorial Matrix Theory, Linear Statistical Inference, Matrix and Graph Methods in Statistics, Matrix and Graph Methods in Biological Science, Matrices in Error Analysis and its Applications.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Cours et évènements pour étudiants en mathématiques,    Géométrie et topologie

CIRM – Centre International de Rencontres Mathématiques

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

CIRM – Centre International de Rencontres Mathématiques

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

CIRM – Centre International de Rencontres Mathématiques

CIRM – Centre International de Rencontres Mathématiques

CIRM – Centre International de Rencontres Mathématiques

CIRM – Centre International de Rencontres Mathématiques

Society for Industrial and Applied Mathematics (SIAM)

Linear algebra is an important area of mathematics and it is at the heart of many scientific, engineering, and industrial applications. Research and development in linear algebra include theoretical studies, algorithmic designs and implementations on advanced computer architectures, and applications to various disciplines. The SIAM Conferences on Applied Linear Algebra, organized by SIAM every three years, are the premier international conferences on applied linear algebra, which bring together diverse researchers and practitioners from academia, research laboratories, and industries all over the world to present and discuss their latest work and results on applied linear algebra.

CIRM – Centre International de Rencontres Mathématiques

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Cours et évènements pour étudiants en mathématiques,    Géométrie et topologie

Indian Institute of Science, Bangalore

FPSAC/SFCA is a series of annual international conferences on Formal Power Series and Algebraic Combinatorics. The principal topics featured during FPSAC conferences are algebraic and enumerative combinatorics and their applications and relations with other areas of mathematics, physics, biology and computer science. This interdisciplinary nature is reinforced by the choice of plenary speakers.

CIRM – Centre International de Rencontres Mathématiques

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

Cours et évènements pour étudiants en mathématiques,    Analyse

Mathematical Sciences Research Institute (MSRI)

This workshop will focus on the integrable aspect of random matrix theory and other related probability models such as random tilings, directed polymers, and interacting particle systems. The emphasis is on communicating diverse algebraic structures in these areas which allow the asymptotic analysis possible. Some of such structures are determinantal point processes, Toeplitz and Hankel determinants, Bethe ansatz, Yang-Baxter equation, Karlin-McGregor formula, Macdonald process, and stochastic six vertex model.

Mathematisches Forschungsinstitut Oberwolfach (MFO, Oberwolfach Research Institute for Mathematics)

CIRM – Centre International de Rencontres Mathématiques