Schubert calculus is the study of certain intersections of varieties in the flag manifold. These intersections are */positive/* in the differential-geometric sense, but they also have “positivity properties” in several associated rings, notably equivariant cohomology

# 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.**

February 11, 2016

3:00pm - 4:00pm

##### Schubert Calculus and Positivity

Location

Fine Hall 214

Speaker: Rebecca Goldin,

George Mason University

George Mason University

February 18, 2016

3:00pm - 4:00pm

##### TBA - Zhi Lu

Location

Fine Hall 214

Speaker: Zhi Lu,

Fudan University

Fudan University

February 25, 2016

3:00pm - 4:00pm

##### On the topology of a small cover associated to a shellable complex

Small covers are real analogues to quasi-toric manifolds: the fixed points under complex conjugation (i.e., the real toric manifold) in a projective toric manifold is a small cover; Buchstaber and Ray showed that every unoriented cobordism class contains a small cover as its representative. A s

Location

Fine Hall 214

Speaker: Li Cai,

Chinese Academy of Sciences

Chinese Academy of Sciences

March 3, 2016

3:00pm - 4:00pm

##### TBA - Elizabeth Vidaurre

Location

Fine Hall 214

Speaker: Elizabeth Vidaurre,

CUNY

CUNY

March 31, 2016

3:00pm - 4:00pm

##### TBA - Joseph Neisendorfer

Location

Fine Hall 214

Speaker: Joseph Neisendorfer,

Rochester University

Rochester University