Geometry/Topology Seminar
Spring 2015
Thursdays (and sometimes Tuesdays) 34pm, in
Eckhart 308

 Thursday April 16 at 34pm in Eck 308
 Steven Boyer, UQAM
 TBA

Abstract: TBA

 Thursday May 7 at 34pm in Eck 308
 Jeff Danciger, Austin
 TBA

Abstract: TBA

 Tuesday May 19 at 34pm in Eck 308
 Christoforos Neofytidis, Binghamton
 Groups presentable by products and an ordering of Thurston geometries by
maps of nonzero degree

Abstract: The existence of a map of nonzero degree
defines a transitive relation on the homotopy types of
closed oriented manifolds of the same dimension, called
domination relation. Gromov suggested investigating the
domination relation as defining an ordering of manifolds and
formulated numerous conjectures regarding classes that might
(not) be comparable under this relation. A particular case
of the domination question, which specifies Steenrod's
classical problem on the realization of homology classes by
manifolds, and is motivated by MilnorThurston and Gromov's
theory of functorial seminorms on homology (such as the
simplicial volume), is when the domain is a nontrivial
direct product. In this talk, I will discuss the
(non)existence of maps of nonzero degree from direct
products to aspherical manifolds with fundamental groups
with nontrivial center. As an application, I will describe
an ordering of all nonhyperbolic aspherical 4manifolds
possessing a Thurston geometry.

 Tuesday May 26 at 34pm in Eck 308
 Ailsa Keating, TBA
 TBA

Abstract: ((scheduled by Jesse, approved Benson))
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