• 1034c - Mini-Workshop: Exploiting Symmetry in Optimization 

      [OWR-2010-38] (2010) - (22 Aug - 28 Aug 2010)
      The feasible regions of mathematical optimization models quite often exhibit a high degree of symmetry. In recent years, several groups of researchers have independently worked on algorithmic approaches to exploit such ...
    • 1545a - Mini-Workshop: Friezes 

      [OWR-2015-48] (2015) - (01 Nov - 07 Nov 2015)
      Frieze patterns were introduced in the early 1970s by Coxeter. They are infinite arrays of numbers in which every four neighbouring entries always satisfy the same arithmetic relation. Amazingly, friezes appear in many ...
    • 1215b - Mini-Workshop: Hypergraph Turan Problem 

      [OWR-2012-19] (2012) - (08 Apr - 14 Apr 2012)
      This mini-workshop focused on the hypergraph Turán problem. The interest in this difficult and old area was recently re-invigorated by many important developments such as the hypergraph regularity lemmas, flag algebras, ...
    • 2009a - Mini-Workshop: Kronecker, Plethysm, and Sylow Branching Coefficients and their Applications to Complexity Theory 

      [OWR-2020-9] (2020) - (23 Feb - 29 Feb 2020)
      The Kronecker, plethysm and Sylow branching coefficients describe the decomposition of representations of symmetric groups obtained by tensor products and induction. Understanding these decompositions has been hailed ...
    • 0648b - Mini-Workshop: Logic, Combinatorics and Independence Results 

      [OWR-2006-52] (2006) - (26 Nov - 02 Dec 2006)
      This is a collection of extended abstracts of a mini-workshop “Logic, Combinatorics and Independence results” that took place on November 25 – December 2, 2006 in Oberwolfach. The mini-workshop was attended by 16 researchers ...
    • 1117a - Mini-Workshop: Modular Representations of Symmetric Groups and Related Objects 

      [OWR-2011-21] (2011) - (24 Apr - 30 Apr 2011)
      The mini-workshop focussed on the modular representation theory of the symmetric group and other closely related objects, including Hecke algebras and Schur algebras. The topics and problems discussed include computations ...
    • 1134b - Mini-Workshop: New Developments in Newton-Okounov Bodies 

      [OWR-2011-41] (2011) - (21 Aug - 27 Aug 2011)
      The theory of Newton-Okounkov bodies, also called Okounkov bodies, is a new connection between algebraic geometry and convex geometry. It generalizes the well-known and extremely rich correspondence between geometry of ...
    • 0910c - Mini-Workshop: Non-Negativity is a Quantum Phenomenon 

      [OWR-2009-14] (2009) - (01 Mar - 07 Mar 2009)
      In recent publications, the same combinatorial description has arisen for three separate objects of interest: non-negative cells in the real grassmannian (Postnikov, Williams); torus orbits of symplectic leaves in the ...
    • 2106c - Mini-Workshop: Nonpositively Curved Complexes (online meeting) 

      [OWR-2021-8] (2021) - (07 Feb - 13 Feb 2021)
      The leading theme of the meeting was to understand nonpositively curved complexes and groups acting on them. Motivations, questions, results, and techniques being presented and discussed come from various areas of ...
    • 1609a - Mini-Workshop: PBW Structures in Representation Theory 

      [OWR-2016-13] (2016) - (28 Feb - 05 Mar 2016)
      The PBW structures play a very important role in the Lie theory and in the theory of algebraic groups. The importance is due to the huge number of possible applications. The main goal of the workshop was to bring together ...
    • 0715c - Mini-Workshop: Positional Games 

      [OWR-2007-20] (2007) - (08 Apr - 14 Apr 2007)
      Positional games is one of rapidly developing subjects of modern combinatorics, researching two player perfect information games of combinatorial nature, ranging from recreational games like Tic-Tac-Toe to purely abstract ...
    • 1840a - Mini-Workshop: Positional Games 

      [OWR-2018-44] (2018) - (30 Sep - 06 Oct 2018)
      This mini-workshop focused on Positional Games and related fields. Positional Games Theory is a branch of Combinatorics whose main aim is to systematically develop an extensive mathematical basis for a variety of two-player ...
    • 1915a - Mini-Workshop: Recent Progress in Path Integration on Graphs and Manifolds 

      [OWR-2019-16] (2019) - (07 Apr - 13 Apr 2019)
      Ever since Richard Feynman's PhD thesis, path integrals have played a decisive role in mathematical physics. While it is well-known that such formulae can hold only formally, it was Mark Kac who realized that by replacing ...
    • 1816c - Mini-Workshop: Superexpanders and Their Coarse Geometry 

      [OWR-2018-19] (2018) - (15 Apr - 21 Apr 2018)
      It is a deep open problem whether all expanders are superexpanders. In fact, it was already a major challenge to prove the mere existence of superexpanders. However, by now, some classes of examples are known: Lafforgue’s ...
    • 2003 - Model Theory: Groups, Geometries and Combinatorics 

      [OWR-2020-2] (2020) - (12 Jan - 18 Jan 2020)
      The focus of the conference were recent interactions between model theory, group theory and combinatorics in finite geometries. In some cases, in particular in non-archimedean geometry or combinatorics in finite geometries, ...
    • 1601 - Model Theory: groups, geometry, and combinatorics 

      [OWR-2016-1] (2016) - (03 Jan - 09 Jan 2016)
      This conference was about recent interactions of model theory with combinatorics, geometric group theory and the theory of valued fields, and the underlying pure model-theoretic developments. Its aim was to report on recent ...
    • 2312 - New Directions in Real Algebraic Geometry 

      [OWR-2023-15] (2023) - (19 Mar - 24 Mar 2023)
      This workshop explored the forefront of connections of real algebraic geometry with convex analysis, combinatorics, and computational complexity. Important aspects have been promising interactions with the fields of quantum ...
    • New representations of matroids and generalizations 

      [OWP-2011-18] Izhakian, Zur; Rhodes, John L. (Mathematisches Forschungsinstitut Oberwolfach, 2011)
      We extend the notion of matroid representations by matrices over fields by considering new representations of matroids by matrices over finite semirings, more precisely over the boolean and the superboolean semirings. This ...
    • 1718 - O-Minimality and its Applications to Number Theory and Analysis 

      [OWR-2017-22] (2017) - (30 Apr - 06 May 2017)
      The workshop brought together researchers in the areas of o-minimal structures, analysis and number theory. The latest developments in o-minimality and their applications to number theory and analysis were presented in a ...
    • On Co-Minimal Pairs in Abelian Groups 

      [OWP-2019-19] Biswas, Arindam; Saha, Jyoti Prakash (Mathematisches Forschungsinstitut Oberwolfach, 2019-07-09)
      A pair of non-empty subsets $(W,W')$ in an abelian group $G$ is a complement pair if $W+W'=G$. $W'$ is said to be minimal to $W$ if $W+(W'\setminus \{w'\}) \neq G, \forall \,w'\in W'$. In general, given an arbitrary subset ...