Tagungen und Workshops zum Thema Graphentheorie und Kombinatorik

Banff International Research Station for Mathematical Innovation and Discovery (BIRS)

Advances in data collection and social media have led to network and graph data becoming available in many areas, including social sciences, biological sciences, and engineering. Understanding and modeling network structure, as well as conducting rigorous statistical inference to assess uncertainty, can provide crucial insights into the dynamics and interaction mechanisms of the system. Statistical network analysis to date has largely focused on the setting where a single network is observed as a noisy version of some underlying structure of interest. This setting in itself is challenging, requiring adaptation of existing statistical frameworks to networks and bridging the gap between theoretically optimal performance and computational feasibility. The workshop will start by covering recent advances in this setting.

Kurse und Veranstaltungen für Studenten der Mathematik,    Statistik, Spieltheorie

Friedrich-Schiller-University Jena

We are pleased to announce the 8th German-Polish Conference on Optimization – Methods and Applications, organized by the Friedrich Schiller University Jena and held at "Hotel am Schloss" in Apolda, Germany on September 20–24, 2021. The present conference is a continuation of the German-Polish Conference on Optimization series held in Żagań (1999), Cottbus (2002), Będlewo (2005), Moritzburg (2009), Kraków (2011), Wittenberg (2014) and Będlewo (2017).

Conference Office;     Tel.: [+49 3641 946200];     Email: nadin.friebe@uni-jena.de

theory of smooth and non-smooth optimization, variational problems and variational inequalities, optimal control, inverse and ill-posed problems, combinatorial optimization, vector optimization, solution methods and applications of optimization

Optimierungsrechnung, Entscheidungsunterstützung,    Analysis

As the name indicates, this is a combinatorics conference. There will be six plenary speakers: Brian Alspach, Darryn Bryant, Fan Chung, Marijn Heule, Mateja Sajna and Richard Wilson. Also, the participants are invited to give a 20-minute contributed talk.

University of Toulouse

The ADT 2021 conference focus is on algorithmic decision theory broadly defined, seeking to bring together researchers and practitioners coming from diverse areas of Computer Science, Economics and Operations Research in order to improve the theory and practice of modern decision support. The conference topics include research in Algorithms, Argumentation Theory, Artificial Intelligence, Computational Social Choice, Database Systems, Decision Analysis, Discrete Mathematics, Game Theory, Machine Learning, Matching, Multi-agent Systems, Multiple Criteria Decision Aiding, Networks, Optimization, Risk Management, and Utility Theory.

CIRM – Centre International de Rencontres Mathématiques

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

Kurse und Veranstaltungen für Studenten der Mathematik,    Optimierungsrechnung, Entscheidungsunterstützung

University of North Carolina, Greensboro, NC

These are a series of combinatorial workshops, held once per semester, each on a Saturday. The series began with its first meeting in spring 2010. They rotate among the universities in and around the Research Triangle. Participants come from numerous colleges and universities within a few hours drive, and some from even farther away. These workshops are funded by the National Science Foundation, in particular enabling us to bring in four exciting speakers to give one hour talks each time as well as funding travel expenses for participants.

Paderborn University, Paderborn, Germany

The Colloquium on Combinatorics is a forum that brings together young researchers and well established scientists. The colloquium will cover all areas of Combinatorics and Discrete Mathematics in a broad sense, including combinatorial aspects in Algebra, Geometry, Optimization and Computer Science. All participants are cordially invited to give a scientific talk

Kurse und Veranstaltungen für Studenten der Mathematik,    Algebra

Banff International Research Station for Mathematical Innovation and Discovery (BIRS)

Graphs are the standard mathematical model of many real-world entities: computer networks, road and highway networks, drainage systems, river networks, electrical networks, and so on. In some cases, these highly-complicated graphs are contained in the product of two or more much simpler graphs. In a recent breakthrough, it was shown that this is the case for planar or near-planar graphs like those that model river, road, and highway networks; any such graph is contained in the product of a simple tree-like graph and a path. This product structure gives deep insight into these graphs and their properties, allowing a host of mathematical and algorithmic tools to be applied to these graphs. The goal of this workshop is to continue the search for product structure in more general classes of graphs as well as to find new methods to exploit such product structure mathematically and algorithmically, when it is present.

The Fields Institute for Research in Mathematical Sciences

Scheduled as part of the Thematic Program on Trends in Pure and Applied Model Theory

Algebra,    Kurse und Veranstaltungen für Studenten der Mathematik

The Fields Institute for Research in Mathematical Sciences

Algebra,    Kurse und Veranstaltungen für Studenten der Mathematik

CIRM – Centre International de Rencontres Mathématiques

This workshop, sponsored by AIM and the NSF, will be devoted to spectral graph theory and its extensions to digraphs and hypergraphs.

The University of Melbourne

The 43rd Australasian Combinatorics Conference (43ACC) will be held at The University of Melbourne, Australia, 13-17 December 2021. Researchers in any area of discrete mathematics and its applications are warmly invited to attend this conference and give talks. Contributed talks will be around 20 - 25 minutes in length including time for questions. ACC is the annual conference of the Combinatorial Mathematics Society of Australasia (CMSA), which was called the Australasian Conference on Combinatorial Mathematics and Combinatorial Computing (ACCMCC) from 1989 to 2019. Past and future editions of this international conference can be found at http://combinatorics-australasia.org/conferences.html.

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

The in person event will take place on January 10-13, 2022, followed by an online component.

ICERM

Braid groups and their generalizations play a central role in a number of places in 21st-century mathematics. In modern representation theory, braid groups have come to play an important organizing role, somewhat analogous to the role played by Weyl groups in classical representation theory. Recent advances have established strong connections between homological algebra (t-structures and stability conditions), geometric representation theory (Hilbert schemes, the Hecke category, and link homologies), and algebraic combinatorics (shuffle algebras, symmetric functions, and also Garside theory). Braid groups appear prominently in many of these connections. The goal of this workshop will be to bring experts in these different areas together to both communicate recent advances and also to formulate important questions for future work.

Tel.: [401 863 5030];     Email: info@icerm.brown.edu

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

CIRM – Centre International de Rencontres Mathématiques

CONFERENCE

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

Kurse und Veranstaltungen für Studenten der Mathematik,    Statistik, Spieltheorie

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

Kurse und Veranstaltungen für Studenten der Mathematik,    Algorithmen und Datenstrukturen

AGH University of Science and Technology, Faculty of Applied Mathematics

This is a subsequent meeting in the series of former Cracow Conferences on Graph Theory held in Niedzica (1990), Zgorzelisko (1994), Kazimierz Dolny (1997), Czorsztyn (2002), Ustroń (2006), Zgorzelisko (2010) and Rytro (2014, 2018). This event is also exceptional, as it shall provide opportunity to celebrate 70th birthday of Mariusz Woźniak.

UiT - The Arctic University of Norway

The Nordic Combinatorial Conference (NORCOM) is a triennial scientific meeting covering the fields of combinatorics and discrete mathematics, interpreted broadly, with the arrangement rotated among the five Nordic countries. The conference is a venue for Nordic as well as foreign combinatorialists to get together and interact in a relaxed atmosphere. Plenary talks are given by distinguished international scholars, and short presentations are given by participants.

Local organizer Trygve Johnsen;     Tel.: [+4792891013];     Email: Trygve.Johnsen@uit.no

Combinatorics, coding theory, discrete mathematics.

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).

distance-regular graphs, association schemes, the subconstituent algebra, Leonard pairs, tridiagonal pairs, billiard arrays, lowering-raising triples, the tetrahedron algebra, the Onsager algebra, the equitable presentation of Uq(sl2), the q-tetrahedron algebra, the q-Onsager algebra in mathematical physics, the universal Askey-Wilson algebra

Mathematische Physik,    Algebra

Valparaiso University, Department of Mathematics and Statistics

The 20th International Conference on Permutation Patterns will be held at Valparaiso University (Valparaiso, Indiana, USA). The conference will feature current research in the area of permutation patterns and its applications. Major themes in the conference include the structural theory of pattern classes, asymptotic behavior of pattern classes, generalized pattern avoidance, packing densities, and algorithmic and decidability problems.

permutation, pattern class, packing density, enumerative combinatorics, algebraic combinatorics

TU Wien

The Algorithmic and Enumerative Combinatorics conference is the homonymous special research program's (SFB) concluding event.

Mathematical Sciences Research Institute (MRSI)

The topic of random graphs is at the forefront of applied probability, and it is one of the central topics in multidisciplinary science where mathematical ideas are used to model and understand the real world. At the same time, random graphs pose challenging mathematical problems that have attracted the attention from probabilists and combinatorialists since the 1960, with the pioneering work of Erdös and Rényi. Around the turn of the millennium, very large data sets started to become available, and several applied disciplines started to realize that many real-world networks, even though they are from various different origins, share many fascinating features. In particular, many of such networks are small worlds, meaning that graph distances in them are typically quite small, and they are scalefree, in the sense that there are enormous differences in the number of connections that their elements make. In particular, such networks are quite different from the classical random graph models, such as proposed by Erdös and Rényi. Spurred by these findings, many novel models have been introduced and properties have been investigated.

Kurse und Veranstaltungen für Studenten der Mathematik,    Komplexe Netzwerke

BIRS - Banff International Research Station

The summer school will give a self-contained introduction aimed at beginning graduate students, and introduce participants to the latest developments. In addition to attending the lectures, students will meet in intensive problem and discussion sessions that will explore and extend the topics developed in the lectures.

Kurse und Veranstaltungen für Studenten der Mathematik,    Geometrie und Topologie

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

Kurse und Veranstaltungen für Studenten der Mathematik,    Geometrie und Topologie

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

Kurse und Veranstaltungen für Studenten der Mathematik,    Statistik, Spieltheorie

CIRM – Centre International de Rencontres Mathématiques

Banff International Research Station (BIRS) for Mathematical Innovation and Discovery

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