Seminar series
          
      Date
              Wed, 24 Oct 2018
      
16:00
          16:00
Location
              C1
          Speaker
              Benjamin Brück
          Organisation
              Bielefeld University
          "Fibre theorems" in the style of Quillen's fibre lemma are versatile tools used to study the topology of partially ordered sets. In this talk, I will formulate two of them and explain how these can be used to determine the homotopy type of the complex of (conjugacy classes of) free factors of a free group.
	The latter is joint work with Radhika Gupta (see https://arxiv.org/abs/1810.09380).
 
    