Date/Time
In SS 2020: We will meet on Thursday, 10:15--11:45, in M201. In WS 2019/20: We will meet on Fridays, 10:15--11:45, in M201.Scheduled meetings/talks in WS 2019/20
Date | Topic | Speaker |
October 18 | Let X be a scheme ... | Johannes Witzig |
October 25 | Classifying spaces and orbit categories | Daniel Echtler |
November 1 | holiday | |
November 8 | Descriptive set theory and forcing | Kristin Geßler |
November 15 | The l^1-semi-norm on singular homology in degree 2 | Stephanie Ortmann |
November 22 | Split-braid-merge diagrams, 3-manifolds, and conjugacy in a braided Thompson group | Yuri Santos Rego (OvGU Magdeburg) |
November 29 | Higer order intersection numbers in 4-manifolds | Lars Munser |
December 6 | no talk (Bavarian Geometry and Topology Meeting, Augsburg) | -- |
December 13 | More intersection numbers | Lars Munser |
December 20 | ||
January 10 | The uniform boundary condition on free groups | Simon Lang |
January 17 | The Cimasoni-Florens signatures of links | Andreas Wicher |
January 24 | The maximum volume of hyperbolic polyhedra (in M311!) | Giulio Belletti (Scuola Normale Superiore, Pisa) |
January 31 | Homological algebra for l^1-homology | Florian Greindl |
February 7 | Chromatische Zahl von Kneser-Graphen und Borsuk-Ulam-Satz | Tobias Frey |
February 26 (Wed, 10:15) | Daniel Grünbaum |
Scheduled meetings/talks in SS 2019
Date | Topic | Speaker |
April 26 | Prime decomposition of high-dimensional manifolds | Stefan Friedl |
May 3 | Discrete Morse theory | Michał Marcinkowski (Wrocław) |
May 10 | no talk, but there is an extra talk on May 16 (see below) | |
May 16 | 14:30--15:30, M104; Whitney towers and higher order intersection numbers | Lars Munser (Bonn) |
May 17 | Excision (from a different viewpoint) | Johannes Witzig |
May 23 | 15:00--16:00, M104; Homology operations of little 2-cubes algebras | Domenico Marasco (Bonn) |
May 24 | Introduction to sl_3 homology of knots | Carlo Collari () |
May 31 | The Reidemeister-Schreier algorithm | Muriel Garcia |
June 7 | Twist knots and Casson-Gordon invariants | Damian Iltgen |
June 14 | Stable classification of 4-manifolds | Benjamin Ruppik (Bonn) |
June 21 | The table theorem | José Pedro Quintanilha |
June 28 | Excision: The wishlist | Johannes Witzig |
July 5 | Chromatic number of groups (8:25--9:55!) | Matthias Uschold |
July 12 | Hashing via expander graphs | Yannick Lautner |
July 19 | The Svarc-Milnor Lemma | Pia Knerich |
July 26 | On the isomorphism problem for (hyperbolic) one-relator groups | Alan Logan (Heriot-Watt University) |
August 2 | The rendez-vous value of topological spaces | Jan-Philipp Zwank |
Scheduled meetings/talks in WS 2018/19
Date | Topic | Speaker |
October 19 (M311!) | Lower bounds on Dehn functions of residually free groups | Claudio LLosa-Isenrich (PSUD) |
October 26 | Minimal stretch factors in the extended mapping class groups | Livio Liechti (IMJ) |
November 2 | no talk | -- |
November 9 | Hilbert spaces over non-archimedean fields | Raphael Schmidpeter |
November 16 (10:00 s.t.!) | Hopf algebras in Galois theory | Linda Hu |
November 23 | Vassiliev invariants via manifold calculus | Yuqing Shi (Bonn) |
November 30 | Lagrangian relations, cobordisms and the Maslov index | Enrico Toffoli |
December 7 | part 2 | Enrico Toffoli |
December 14 | Geometry/Topology meeting in Augsburg | |
December 21 | Bieri-Neumann-Strebel Transchromatic Theory with Quasi Theory | Gerrit Herrmann |
January 11 | Scanning maps (?) | Luigi Caputi |
January 18 | Some faces of the Poincaré homology 3-sphere | José Pedro Quintanilha |
January 25 | Simplicial Poincaré Duality | Bruno Mazorra |
(additional talk of the seminar Topology vs. Combinatorics) | ||
February 1 | tba | Alexandra Kjuchukova (MPIM) |
February 8 | moved to Wed, Feb 6, 14:00 | Kai Zehmisch (Gießen) |
Scheduled meetings/talks in SS 2018
Date | Topic | Speaker |
April 12 | Fibred classes | Stefan Friedl |
April 19 | Homological stability for Artin monoids | Rachael Boyd (University of Aberdeen) |
April 26 | Irrfahrten, Satz von Polya | Leonhard Beutlhauser |
May 3 | Irrfahrten auf 3-Mannigfaltigkeiten | Richard Mante |
May 10 | -- | Ascension Day |
May 17 | Exceptional manifolds | Stefan Friedl |
May 24 | Surgery theory for dummies/beginners | Markus Land |
May 31 | -- | Corpus Christi |
June 7 | Klassifikation von Seifert-gefaserten 3-Mannigfaltigkeiten | Felix Eberhart |
June 14 | 10 Reasons why profinite groups are important in the world around you | José Pedro Quintanilha |
June 21 | Der Satz von Helly | Julian Hannes |
June 28 | Configuration spaces of linkages | Dennis Zumbil |
July 5 | A Tale of Three Embeddings of Group Rings | Fabian Henneke (Bonn) |
July 12 | An introduction to machine learning | Jonas Kleinöder |
July 19 | Simplicial volume of surfaces with finite coefficients | Michael Friesen |
Formalities/Leistungsnachweis
entry in the commented list of all courses.