Browsing 5  Oberwolfach Reports (OWR) by Title
Now showing items 117136 of 1382

1341  Arbeitsgemeinschaft: Sofic Entropy
[OWR201350] (2013)  (06 Oct  11 Oct 2013)The notion of soficity for a group is a weak type of finite approximation property that simultaneously generalizes both amenability and residual finiteness. In 2008 L. Bowen discovered how it can be used to significantly ... 
1414  Arbeitsgemeinschaft: Superrigidity
[OWR201416] (2014)  (30 Mar  05 Apr 2014)The purpose of the Arbeitsgemeinschaft was to review old and new phenomenas of rigidity in mathematics. The broad spectrum of such results was covered, such as MargulisZimmer superrigidity, cocyle and character rigidity. 
1614  Arbeitsgemeinschaft: The Geometric Langlands Conjecture
[OWR201620] (2016)  (03 Apr  09 Apr 2016)The Langlands program is a vast, loosely connected, collection of theorems and conjectures. At quite different ends, there is the geometric Langlands program, which deals with perverse sheaves on the stack of $G$bundles ... 
1514  Arbeitsgemeinschaft: The KadisonSinger Conjecture
[OWR201517] (2015)  (29 Mar  04 Apr 2015)The solution to the Kadison–Singer conjecture used techniques that intersect a number of areas of mathematics. The goal of this Arbeitsgemeinschaft was to bring together people from each of these fields to support interactions ... 
2141  Arbeitsgemeinschaft: Thin Groups and Superapproximation (hybrid meeting)
[OWR202150] (2021)  (10 Oct  15 Oct 2021)The aim of this workshop was to discuss the superapproximation of thin groups, its dynamical implications in terms of the mixing of geodesic flows, and applications to various problems in arithmetic, geometry, and dynamics. 
1814  Arbeitsgemeinschaft: Topological Cyclic Homology
[OWR201815] (2018)  (01 Apr  07 Apr 2018)Introduced by BökstedtHsiangMadsen in the nineties, topological cyclic homology is a manifestation of the dual visions of ConnesTsygan and Waldhausen to extend de Rham cohomology to a noncommutative setting and to ... 
1041  Arbeitsgemeinschaft: Topological Robotics
[OWR201047] (2010)  (10 Oct  16 Oct 2010)The purpose of the Arbeitsgemeinschaft was to enable PhD students and researchers to study Topological Robotics, a new field investigating topological problems motivated by robotics and engineering as well as problems of ... 
1441  Arbeitsgemeinschaft: Totally Disconnected Groups
[OWR201447] (2014)  (05 Oct  10 Oct 2014)Locally compact groups are ubiquitous in the study of many continuous or discrete structures across geometry, analysis and algebra. Every locally compact group is an extension of a connected group by a totally disconnected ... 
2314  Arbeitsgemeinschaft: Twistor DModules and the Decomposition Theorem
[OWR202317] (2023)  (02 Apr  07 Apr 2023)The purpose of this Arbeitsgemeinschaft is to introduce the notion of twistor $\mathcal{D}$modules and their main properties. The guiding principle leading this discussion is Simpson's "metatheorem", which gives a heuristic ... 
1942  Arbeitsgemeinschaft: Zimmer's Conjecture
[OWR201948] (2019)  (13 Oct  18 Oct 2019)The aim of this Arbeitsgemeinschaft was to understand the recent progress on Zimmer's conjecture in [1,2]. The week focuses on the cocompact case from [1]. 
0031  Arithmetic Algebraic Geometry
[TB200031] (2000)  (30 Jul  05 Aug 2000) 
0432  Arithmetic Algebraic Geometry
[OWR200437] (2004)  (01 Aug  07 Aug 2004) 
0832  Arithmetic Algebraic Geometry
[OWR200835] (2008)  (03 Aug  09 Aug 2008)Arithmetic geometry lies between number theory and algebraic geometry. It deals with schemes over the rings of integers of a numberfield or also over a padic completion. For them one investigates geometric properties, ... 
0228  Arithmetic and Differential Galois Groups
[TB200234] (2002)  (07 Jul  13 Jul 2002) 
0720  Arithmetic and Differential Galois Groups
[OWR200726] (2007)  (13 May  19 May 2007)Galois theory is the study of symmetries in solution spaces of polynomial and differential equations and more generally of the relation between automorphism groups (or group schemes respectively) and the structure of ... 
1232  Arithmetic Geometry
[OWR201238] (2012)  (05 Aug  11 Aug 2012)The focus of the workshop was the connection between algebraic geometry and arithmetic. Most lectures were on padic topics, underlining the importance of Fontaine’s theory in the field, namely it gives a relation between ... 
1632  Arithmetic Geometry
[OWR201638] (2016)  (07 Aug  13 Aug 2016)Arithmetic geometry is at the interface between algebraic geometry and number theory, and studies schemes over the ring of integers of number fields, or their $p$adic completions. An emphasis of the workshop was on padic ... 
2030  Arithmetic Geometry (hybrid meeting)
[OWR202020] (2020)  (19 Jul  25 Jul 2020)Arithmetic geometry is at the interface between algebraic geometry and number theory, and studies schemes over the ring of integers of number fields, or their $p$adic completions, and connects with representation theory, ... 
1123  Arithmetic Groups vs. Mapping Class Groups: Similarities, Analogies and Differences
[OWR201130] (2011)  (05 Jun  11 Jun 2011)Arithmetic groups arise naturally in many fields such as number theory, algebraic geometry, and analysis. Mapping class groups arise in both low dimensional topology and geometric group theory. They have been studied ... 
1903  Arithmetic of Shimura Varieties
[OWR20192] (2019)  (13 Jan  19 Jan 2019)Arithmetic properties of Shimura varieties are an exciting topic which has roots in classical topics of algebraic geometry and of number theory such as modular curves and modular forms. This very active research field has ...