I will describe some joint work with Alex Suciu and Sergey Yuzvinsky. We construct a combinatorial framework for proving cohomological vanishing results on certain classes of spaces, by means of a Mayer-Vietoris-type spectral sequence and certain Cohen-Macaulayness hypotheses.

# Algebraic Topology Seminar

Organizer(s):

For more information on this seminar, contact William Browder or Tony Bahri (Rider).

**Please click on seminar title for complete abstract.**

March 5, 2015

3:00pm - 4:00pm

##### Combinatorial covers and cohomological vanishing

Location

Fine Hall 314

Speaker: Graham Denham,

University of Western Ontario

University of Western Ontario

March 12, 2015

3:00pm - 4:00pm

##### TBA - Herman Gluck

Location

Fine Hall 314

Speaker: Herman Gluck,

University of Pennsylvania

University of Pennsylvania

March 26, 2015

3:00pm - 4:00pm

##### TBA - Christopher Manon

Location

Fine Hall 314

Speaker: Christopher Manon,

George Mason University

George Mason University

April 2, 2015

3:00pm - 4:00pm

##### TBA - Wilson

Location

Fine Hall 314

Speaker: Glen Wilson ,

Rutgers University

Rutgers University

April 9, 2015

3:00pm - 4:00pm

##### TBA - Yury Ustinovsky

Location

Fine Hall 314

Speaker: Yury Ustinovsky,

Princeton University

Princeton University

April 30, 2015

3:00pm - 4:00pm

##### TBA - Browder

**This is a joint Algebraic Topology - Topology seminar.**

Location

Fine Hall 314

Speaker: William Browder,

Princeton University

Princeton University