Browsing by MSC "20"

Now showing items 41-60 of 161

    • 1848 - Enveloping Algebras and Geometric Representation Theory 

      [OWR-2018-52] (2018) - (25 Nov - 01 Dec 2018)
      The workshop brought together experts investigating algebraic Lie theory from the geometric and categorical viewpoints.

    • 1520 - Enveloping Algebras and Geometric Representation Theory 

      [OWR-2015-25] (2015) - (10 May - 16 May 2015)
      The workshop brought together experts investigating algebraic Lie theory from the geometric and categorical viewpoints.

    • 1210 - Enveloping Algebras and Geometric Representation Theory 

      [OWR-2012-13] (2012) - (04 Mar - 10 Mar 2012)
      The workshop brought together experts investigating algebraic Lie theory from the geometric and combinatorial points of view.

    • 2144 - Enveloping Algebras and Geometric Representation Theory (hybrid meeting) 

      [OWR-2021-52] (2021) - (31 Oct - 06 Nov 2021)
      The workshop brought together experts investigating algebraic Lie theory from the geometric and categorical viewpoints.

    • Experimenting with Symplectic Hypergeometric Monodromy Groups 

      [OWP-2019-15] Detinko, Alla; Flannery, Dane; Hulpke, Alexander (Mathematisches Forschungsinstitut Oberwolfach, 2019-05-22)
      We present new computational results for symplectic monodromy groups of hypergeometric differential equations. In particular, we compute the arithmetic closure of each group, sometimes justifying arithmeticity. The results ...

    • Experimenting with Zariski Dense Subgroups 

      [OWP-2017-31] Detinko, Alla; Flannery, Dane; Hulpke, Alexander (Mathematisches Forschungsinstitut Oberwolfach, 2017-10-28)
      We give a method to describe all congruence images of a finitely generated Zariski dense group $H\leq SL(n, \mathbb{R})$. The method is applied to obtain efficient algorithms for solving this problem in odd prime degree ...

    • 1120a - Finite-dimensional Approximations of Discrete Groups 

      [OWR-2011-26] (2011) - (15 May - 21 May 2011)
      The main objective of this workshop was to bring together experts from various fields, which are all interested in finite and finite-dimensional approximations of infinite algebraic and analytic objects, such as groups, ...

    • Flag-Accurate Arrangements 

      [OWP-2023-01] Mücksch, Paul; Röhrle, Gerhard; Tran, Tan Nhat (Mathematisches Forschungsinstitut Oberwolfach, 2023-02-13)
      In [MR21], the first two authors introduced the notion of an accurate arrangement, a particular notion of freeness. In this paper, we consider a special subclass, where the property of accuracy stems from a flag of flats ...

    • Freeness of Multi-Reflection Arrangements via Primitive Vector Fields 

      [OWP-2017-10] Hoge, Torsten; Mano, Toshiyuki; Röhrle, Gerhard; Stump, Christian (Mathematisches Forschungsinstitut Oberwolfach, 2017-04-20)
      In 2002, Terao showed that every reflection multi-arrangement of a real reflection group with constant multiplicity is free by providing a basis of the module of derivations. We first generalize Terao's result to ...

    • G-complete reducibility in non-connected groups 

      [OWP-2013-09] Bate, Michael; Herpel, Sebastian; Martin, Benjamin; Röhrle, Gerhard (Mathematisches Forschungsinstitut Oberwolfach, 2013-04-10)
      In this paper we present an algorithm for determining whether a subgroup $H$ of a non-connected reductive group $G$ is $G$-completely reducible. The algorithm consists of a series of reductions; at each step, we perform ...

    • 1229 - Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry 

      [OWR-2012-35] (2012) - (15 Jul - 21 Jul 2012)
      The workshop brought together experts in the young and rapidly developing mathematical fields of Geometric group theory, hyperbolic dynamics and symplectic geometry. The activities included talks on recent achievements and ...

    • 0837 - Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry 

      [OWR-2008-42] (2008) - (07 Sep - 13 Sep 2008)

    • 1028 - Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry 

      [OWR-2010-30] (2010) - (11 Jul - 17 Jul 2010)
      The main theme of the workshop is the interaction between the speedily developing fields of mathematics mentioned in the title. One of the purposes of the workshop is to highlight new exciting developments which are happening ...

    • 0630 - Geometric Group Theory, Hyperbolic Dynamics and Symplectic Geometry 

      [OWR-2006-33] (2006) - (23 Jul - 29 Jul 2006)
      Geometric Group theory, Hyperbolic Dynamics and Symplectic Geometry are young and rapidly developing fields of mathematics. The scientific goal of the workshop was twofold: first, to present some recent breakthroughs, and, ...

    • 1323 - Geometric Structures in Group Theory 

      [OWR-2013-28] (2013) - (02 Jun - 08 Jun 2013)
      The overall theme of the conference was geometric group theory, interpreted quite broadly. In general, geometric group theory seeks to understand algebraic properties of groups by studying their actions on spaces with ...

    • 1726 - Geometric Structures in Group Theory 

      [OWR-2017-30] (2017) - (25 Jun - 01 Jul 2017)
      Geometric group theory has natural connections and rich interfaces with many of the other major fields of modern mathematics. The basic motif of the field is the construction and exploration of actions by infinite groups ...

    • 2209 - Geometric Structures in Group Theory 

      [OWR-2022-11] (2022) - (27 Feb - 05 Mar 2022)
      The conference was in the area of geometric group theory, the field of mathematics in which one studies infinite groups (finitely generated, or more generally locally compact, countable etc.) via actions on spaces endowed ...

    • 2026 - Geometric Structures in Group Theory (hybrid meeting) 

      [OWR-2020-16] (2020) - (21 Jun - 27 Jun 2020)
      The conference focused on the use of geometric methods to study infinite groups and the interplay of group theory with other areas. One of the central techniques in geometric group theory is to study infinite discrete ...

    • 1504 - Geometric Topology 

      [OWR-2015-3] (2015) - (18 Jan - 24 Jan 2015)
      Geometric topology has seen significant advances in the understanding and application of infinite symmetries and of the principles behind them. On the one hand, for advances in (geometric) group theory, tools from algebraic ...

    • Ghost Algebras of Double Burnside Algebras via Schur Functors 

      [OWP-2012-09] Boltje, Robert; Danz, Susanne (Mathematisches Forschungsinstitut Oberwolfach, 2012-07-03)
      For a finite group $G$, we introduce a multiplication on the $\mathbb{Q}$-vector space with basis $\mathscr{S}_{G\times G}$, the set of subgroups of ${G \times G}$. The resulting $\mathbb{Q}$-algebra $\tilde{A}$ can be ...