Tagungen und Workshops zum Thema Graphentheorie und Kombinatorik

"Algebraic Combinatorics in" is a series of annual international conferences on Algebraic Combinatorics (in a broad sense). After the editions in Ancona and Genova, in 2020 it will take place in Grand Hotel San Michele, Cetraro. This year, the mini-courses have a special focus on positivity and log-concavity results/conjectures.

Each of three main courses consists of 5 hours of lectures and 1 hour of exercises.

Tel.: [48693218569];     Email: psniady@impan.pl

random Young tableaux, shifted symmetric groups, reflection groups, crystal bases

University of Rijeka, Croatia

The goal of the conference is to bring together researchers interested in combinatorial designs, algebraic combinatorics, finite geometry, graphs, and their applications to communication and cryptography, especially to codes (error-correcting codes, quantum codes, network codes, etc.) .

The conference explores the web of interactions among the subjects in the title, on the occasion of Laci Babai's 70th birthday.

Email: gggc2020@renyi.hu

Algebra,    Gruppentheorie

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.

Algebra,    Angewandte Mathematik (allgem.)

University of Primorska, Andrej Marušič Institute, Slovenia

At the conference we will be celebrating the 65th birthday of Paul Terwilliger. As such, the general theme of this conference will be the mathematical topics that Paul has worked on over the years (which all have relationships to the q-Onsager algebra).

IWCIA’20 is the twentieth of a series of International Workshop on Combinatorial Image Analysis. Image analysis is a scientific discipline providing theoretical foundations and methods for solving problems appearing in a wide range of areas, as diverse as medicine, robotics, defense, and security. As a rule, the processed data are discrete; therefore, the “discrete approach” to image analysis appears to be a natural one and has an increasing importance. It is based on studying combinatorial properties of the considered digital data sets. Combinatorial image analysis often features various advantages (in terms of efficiency and accuracy) over the more traditional approaches based on continuous models requiring numeric computation

The Young Researchers in Combinatorics workshop is aimed at PhD students and early-career academics working in Extremal and Probabilistic Combinatorics and related fields. By building an environment without senior researchers, we hope the participants will feel free to contribute their ideas openly, thus preparing them to undertake their own research projects. The workshop consists mostly of working sessions in which participants collaborate on research problems, and a limited number of talks and lectures. We aim to host around 10 invited participants and about 25 PhD students for a week between 19 and 25 July 2020 at ICMS Edinburgh. Accommodation and refreshments are provided for all participants, as well as a conference dinner. A registration fee of 100GBP is payable by all non-invited participants. We expect to start accepting applications in October 2019.

APDIO (the Portuguese Operations Research Society)

The main objective of the Optimization 2020 conference is to bring together researchers and practitioners from different areas and backgrounds, but with common interests in Optimization. This meeting has international recognition as an important forum of discussion and exchange of ideas.

The University of Sydney, School of Mathematics and Statistics

This workshop at the University of Sydney will bring together experts and emerging researchers from Australia, the USA and Europe to report on recent results and explore future directions in computational and algorithmic topology and related areas. There will be a focus on problems in computational geometric topology and computational algebraic topology. This workshop aims to stimulate interaction between researchers in order to bring about new collaborations on difficult problems that cannot be tackled from one viewpoint alone.

We plan to have talks by our invited speakers in the mornings, and open problem sessions, a poster session, and plenty of time for collaboration in the afternoons.

Invited Speakers:

Herbert Edelsbrunner (Institute of Science and Technology Austria)

Brittany Fasy (Montana State University)

Gregory Henselman (Princeton University)

Feng Luo (Rutgers University)

Zuzana Patáková (Institute of Science and Technology Austria)

Jessica Purcell (Monash University)

Vanessa Robins (Australian National University)

Organizers:

Jonathan Spreer (The University of Sydney)

Stephan Tillmann (The University of Sydney)

Katharine Turner (Australian National University)

Email: jonathan.spreer@sydney.edu.au

Computational topology, Low-dimensional topology, Topological Data Analysis, Computational geometry, Algebraic topology, Algorithms

Geometrie und Topologie,    Algorithmen

The third edition of Prague Summer School on Discrete Mathematics will be held on August 24-28, 2020 in the historical building of the Computer Science Department of Charles University in the very heart of Prague. Lecture series will be given by Subhash Khot (New York University) and Shayan Oveis Gharan (University of Washington). The School is primarily intended for PhD students and early career researchers. There is no registration fee and a number of travel stipends will be available.

Kurse und Veranstaltungen für Studenten der Mathematik,    Numerische Analysis

This workshop, sponsored by AIM and the NSF, is devoted to the Albertson conjecture and other problems related to crossing numbers. The crossing number of a graph is the minimum number of edge crossings in a drawing of the graph in the plane. Determining or estimating the crossing number of a graph is one of the oldest problems in graph theory.

University of Bath

Exact optimization methods, Approximation algorithms, Heuristics, metaheuristics, and hyperheuristics, Decomposition-based algorithms, Column generation, Valid inequalities, Computational complexity, Polyhedral analysis, Interior-point methods, Bilevel programming, Graph theory, Game theory, Applications

Centre International de Rencontres Mathématiques (CIRM)

A permutation is an ordering or arrangement of a set of objects. One might think of shuffling a pack of cards, or sorting a list of options into order of preference, or arranging the seating of passengers on an aeroplane or guests at a dinner. Permutations are central objects in many areas of mathematics. This workshop will explore aspects of permutations which arise in probability theory and related fields. This is a highly active area of study, with a variety of striking results in the last few years and many challenging problems outstanding. Random permutations have applications ranging from genetics to comupter science to economics, and arise in many challenging questions throughout mathematics. Many interesting random processes can be thought of as permutations evolving over time. The workshop will bring together researchers from many backgrounds including probability, combinatorics, physics and theoretical computer science, with the goal of advancing our understanding of random permutations and permutation processes, and of sharing ideas from across the many disparate fields where they are studied.

We would like to invite you to the Workshop on Spectral Graph Theory 2020. The aim is to bring together young and experienced researchers in subjects related to spectral graph theory and its applications. Recent developments and an opportunity to exchange new ideas are expected as outcomes of this workshop.

In honor of Nair Abreu for her 70th birthday.

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

Algebra,    Geometrie und Topologie

Augusta University, Augusta, Georgia

The Integers conferences are international conferences held for the purpose of bringing together mathematicians, students, and others interested in combinatorics and number theory.

The Integers conferences are international conferences held for the purpose of bringing together mathematicians, students, and others interested in combinatorics and number theory.

Mathematical forum of Montenegro and Faculty of Information Studies, Novo mesto, Slovenia

MESIGMA is a symposium that brings together researchers from several fields of mathematics and computer science. As the scientific framework for MESIGMA is widely set, we consider it to be an incentive environment for finding “shared territory” of diverse scientific disciplines.

Geometrie und Topologie,    Algebra

All aspects of string processing, information retrieval, computational biology, and related applications are covered.

Angewandte Mathematik (allgem.),    Informations & Wissensmanagement, Big Data Computing

Hosted at the University of Nevada, Las Vegas

The Midwestern Conference on Combinatorics and Combinatorial Computing (MCCCC) originally started as the Carbondale Combinatorics Conferences and were held (1986-1990) at the Southern Illinois University, Carbondale. The conference has since evolved to a prestigious national conference in the areas of Combinatorics and Computing and has achieved recognition and attracted scholars and researchers of various backgrounds from different institutions. Here they coalesce their individual contributions into a collection of ideas and inspirations for the advancement of combinatorics and combinatorial computing.

Dynamics is the study of systems that evolve over time. Combinatorics is the study of discrete structures such as binary strings, well-formed expressions in simple languages, data trees, colorings of graphs, etc. In Dynamical Algebraic Combinatorics, we study key parameters associated with these systems as they evolve, which helps us make sense of the underlying dynamics.

CMM - Center for Mathematical Modeling | FCFM | Universidad de Chile

The LAWCG 2020 edition is supported by the Center for Mathematical Modeling. It will take place at the Termas del Corazón resort located near the city of Los Andes, Chile. The official languages are English, Portuguese, and Spanish. Originally the workshop mostly focused on research in cliques and clique graphs, but now includes all areas of graph theory. We expect mostly Latin-American participants, but everybody is welcome!

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

Kurse und Veranstaltungen für Studenten der Mathematik,    Geometrie und Topologie

Two groups of mathematicians, who specialize either in topological combinatorics or in combinatorial commutative algebra, are organizing a workshop in order to identify and to work on problems in the intersection of both fields. Topological combinatorics uses tools from topology to study discrete structures, while combinatorial commutative algebra also studies discrete structures but uses algebraic tools. As a result, the two groups of mathematicians may be studying the exact same problem about discrete structures, but using completely different tools and mathematical language. As an example, questions about the enumeration of the faces of a topological object called a Cohen--Macaulay flag complex can be translated into questions about Hilbert functions of ideals. The goal of this workshop is to bring together 21 mathematicians in both fields to facilitate discussions and encourage new collaborations between these two groups. The organizers have identified five possible themes that will bring an additional focus to the direction of the workshop.

The University of Melbourne

Previously known as the Australasian Conference on Combinatorial Mathematics and Combinatorial Computing (ACCMCC), the Australasian Combinatorics Conference (ACC) is the annual conference of the Combinatorial Mathematics Society of Australasia. It covers all areas of combinatorics in mathematics and computer science.

Email: 43acc@ms.unimelb.edu.au

The Department of Mathematics, School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, is organizing an "International Conference on Graph Theory and its Applications" during December 16-19, 2020.

This will be a four-day Conference in Graph Theory, Graph Algorithms and its applications. It will be focusing on all the topics graph theory and its applications in Optimization, Computing Techniques, Image Processing and Network Communications. The goal of this conference is to bring top researchers in this area to Amrita to foster collaboration and to expose students to important problems in the growing field.

CIRM – Centre International de Rencontres Mathématiques

ICERM

This workshop will focus on the development of software to facilitate research in combinatorial algebraic geometry, based on the SAGE Mathematical Software System and the OSCAR Computer Algebra System. Special attention will be given to efficient computations with multi-variate polynomials, which is a critical part of many algorithms in combinatorial algebraic geometry. Aside from development of software, the workshop will feature a series of talks about polynomial computations, as well as introductory lectures about Sage and Oscar.

Email: info@icerm.brown.edu

Algebra,    Geometrie und Topologie

CIRM – Centre International de Rencontres Mathématiques

ICERM

The purpose of the workshop is to bring together a diverse group of researchers working on combinatorial and geometric aspects related to spaces with symmetries. The workshop will cover problems arising from various flavors of Schubert Calculus and enumerative geometry on flag manifolds, and problems from geometric representation theory and combinatorial Hodge theory. The topics covered include the study of Littlewood-Richardson coefficients, quantum cohomology and quantum K theory of flag manifolds, Maulik-Okounkov stable envelopes and characteristic classes, conformal blocks, and combinatorics related to moduli spaces, Macdonald theory, and quiver polynomials, Soergel bimodules, Hodge theory of matroids. These are trends in a rapidly developing area, and our aim is to facilitate interactions among researchers who work on different problems but employ similar techniques, at the intersection of algebraic geometry, combinatorics, and representation theory.

Email: info@icerm.brown.edu

CIRM – Centre International de Rencontres Mathématiques

Applied and computational topology, one of the most rapidly growing branches of mathematics, is becoming a key tool in applied sciences. It is making impact not only in mathematics, but on the wide interdisciplinary environment including material and medical sciences, data science, robotics.

CIRM – Centre International de Rencontres Mathématiques

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.

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

Kurse und Veranstaltungen für Studenten der Mathematik,    Optimierungsrechnung, Entscheidungsunterstützung

CIRM – Centre International de Rencontres Mathématiques