Kevin
Li
A counter-example to the Eilenberg--Ganea conjecture for proper actions
Forschungsseminar Geometrie und Topologie  📅
Institute
Head
Holger Reich,
Elmar Vogt, and
Georg Lehner
Usual time
Thursdays, 14--16h
Usual venue
Freie Universität Berlin, R.210, Arnimallee 7
Number of talks
59
February 2026
January 2026
Ruochong
Huang
The Kahn--Priddy map
Chris
Huggle
Stable finiteness properties, part 2
Koen
Bresters
Stable finiteness properties
December 2025
Chris
Huggle
Stable geometric dimension for proper actions, part 2
Chris
Huggle
Proper G-spectra, part 3
Elisabeth
aus dem Siepen
Proper G-spectra, part 2
November 2025
Elia
Auer
Stable geometric dimension for proper actions
Elisabeth
aus dem Siepen
Proper G-spectra
Kevin
Li
Bredon cohomology and Mackey functors
Thomas
Nikolaus
Münster
Assembly maps and Efimov K-theory
October 2025
Chris
Huggle
Classification of exponentiable ∞-topoi
Koen
Bresters
Sheaf homology
Chris
Huggle
Introduction to ∞-topoi
July 2025
Koen
Bresters
Categorified Traces
Thomas
Blom
MPIM Bonn
On the chain rule in Goodwillie calculus
Chris
Huggle
The Sheaves-Spectrum Adjunction
June 2025
Qingyuan
Bai
U Copenhagen
Break, factorize and cohere
Kevin
Li
U Regensburg
A combination theorem for homological properties of groups
Ruochong
Huang
Blakers-Massey for the Goodwillie Tower
Elisabeth
a.d. Siepen
Modalities and Blakers-Massey Theorem
May 2025
Elia
Auer
Cubes, Gaps and Orthogonality conditions
Vittorio
Di Fraia
An Introduction to Goodwillie Calculus
April 2025
Georg
Lehner
Site-theoretic Measure Theory
July 2024
Chris
Huggle
Sheaves and Cosheaves on continuous posets
Vittorio
Di Fraia
Localizing Invariants
Chris
Huggle
Sheaves and Cosheaves on continuous posets
Vittorio
Di Fraia
Localizing Invariants
Georg
Lehner
Limits of dualizable infinity-categories
June 2024
Paul
Brommer-Wierig
Tensor products and dualizability of presentable∞-categories
Georg
Lehner
Ramzi’s Theorem and limits of compactly assembled categories
Elisabeth
a.d. Siepen
and
Georg
Lehner
Compactly assembled infinity-categories II + Examples
Georg
Lehner
Compactly assembled infinity-categories II
May 2024
Elisabeth
a.d. Siepen
Compactly assembled infinity-categories
Chris
Huggle
Controlled Algebra
Daniel
Schlaugies
Sheaves of Manifolds - Introduction
Mark
Backhaus
Six Functor Formalisms
April 2024
Holger
Reich
Module Theory
July 2015
Robert
Kropholler
Univ. of Oxford
Free-by-Cyclic groups and CAT(0) spaces
June 2015
William
Browder
Princeton University
The Cohomology of G-spaces II
William
Browder
Princeton University
The Cohomology of G-spaces I
May 2015
Mark
Ullmann
Freie Univ. Berlin
The splitting of A-Theory, revisited
Matthias
Grey
Univ. of Copenhagen
A short invitation to rational homotopy theory
April 2015
Filipp
Levikov
Freie Univ. Berlin
A tale of quadratic L-theory and the fibre of the cyclotomic trace II
Filipp
Levikov
Freie Univ. Berlin
A tale of quadratic L-theory and the fibre of the cyclotomic trace I
February 2015
Robert
Bieri
Universität Frankfurt
Groups of piecewise isometric permutations
Camille
Horbez
Université de Rennes
The Tits alternative for the automorphism group of a free product
Abstract
January 2015
Matthias
Grey
Univ. of Copenhagen
On homological stability for automorphism spaces of odd dimensional manifolds
Tobias
Finis
Universität Leipzig
Stable homology of congruence subgroups
Eugenia
Ellis Raggio
Univ. de la República
Farrell-Jones Conjecture for a-T-amenable groups
December 2014
November 2014
Irakli
Patchkoria
Univ. of Copenhagen
What is the geometric meaning of the virtual cohomological dimension of a group?
Abstract
Reiner
Hermann
NTNU Trondheim
On Quillen’s simplicial interpretation of Hochschild cohomology
Abstract
Joana
Cirici
and
Mark
Ullmann
and
Holger
Reich
What is ... ? (model categories / Quillen equivalences / orthogonal spectra)
October 2014
Daniela
Egas Santander
Universität Bonn
Comparing combinatorial Models of the Moduli space of Riemann surfaces
Abstract