Department of

# Mathematics

Seminar Calendar
for events the day of Friday, April 11, 2014.

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Questions regarding events or the calendar should be directed to Tori Corkery.
      March 2014             April 2014              May 2014
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1          1  2  3  4  5                1  2  3
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Friday, April 11, 2014

4:00 pm in 241 Altgeld Hall,Friday, April 11, 2014

#### Degeneracy Loci and Schubert Polynomials

###### Anna Weigandt (UIUC Math)

Abstract: Given a morphism of vector bundles over a variety, we wish to understand the locus of points for which the induced map on the fibers has at most rank $r$. Under suitable conditions, this degeneracy locus is a subvariety which represents a class in the cohomology of the base. We will discuss specific examples of such degeneracy loci and describe certain polynomials which appear in this analysis.