Past events

Title: An equivariant Segal conjecture

Speaker: Sam Payne (University of Texas at Austin)

Title: Tropical curves, graph homology, and top weight cohomology of M_g

Speaker: Mingcong Zeng (Utrecht University)

Speaker: Travis Schedler (Imperial College, London)

Speaker: Benjamin Hennion (University Paris Sud (Paris 11 -- Orsay))

Speaker: Marc Hoyois

Title: Towards higher algebraic cobordism.

Tomáš Zeman  (Stockholm University)

Speaker: Sune Precht Reeh (Copenhagen)

Title: Transfer for free loop spaces and covering maps

Bernardo Villarreal (University of Copenhagen)

Title: The complex of affinely commutative sets

Speaker: Muriel Livernet (Paris Diderot)

Title: Model category structures for multicomplexes

Abstract:

Multicomplexes can be seen as deformations of chain complexes and we will present a nested family of  weak-equivalences for multicomplexes, arising from the spectral sequence associated to multicomplexes. We will then show that there is a model category structure associated to this family of weak equivalences. The talk is "self-contained" and all notions will be motivated and defined.

Michael Freedman,

Title: The 2-width of 3-manifolds embedded in R⁴