## EVENT DETAILS AND ABSTRACT

**Geometry/Physics Seminar**
**Title:** Analytic continuation of solutions of GKZ system and homological mirror symmetry

**Speaker:** Professor Lev Borisov

**Speaker Info:** University of Wisconsin-Madison

**Brief Description:**

**Special Note**:

**Abstract:**

GKZ hypergeometric system is a certain explicit
system of PDEs associated to a finite set of lattice points.
Given a triangulation of the convex hull of this set, with
the points as vertices, one can construct solutions of
GKZ hypergeometric system, indexed by the (dual of) the K-theory
of the corresponding toric Deligne-Mumford stack. It turns out that
the analytic continuation between adjacent triangulations
corresponds to the pullback-pushforward isomorphism of the
corresponding K-theories. This is recent joint work with Paul Horja.
I will aim to keep the talk accessible to graduate students
in geometry.

**Date:** Thursday, November 17, 2005

**Time:** 2:30pm

**Where:** Lunt 107

**Contact Person:** Prof. Chiu-Chu Melissa Liu

**Contact email:** ccliu@math.northwestern.edu

**Contact Phone:** 847-467-1874

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