Algebraic Geometry Seminar

Date: Tuesday, Sep 22, 2009

Time: 3:30PM - 4:30PM

Location: LCB 225

Amin Gholampour

Caltech

Title	BPS invariants for resolutions of polyhedral singularities
Abstract	Let G be a finite subgroup of SO(3). Y=G-Hilb(C^3) gives the preferred Calabi-Yau resolution of singularities of C^3/G. We use two different approaches to determine the BPS invariants of Y: Gromov-Witten theory, and a specific moduli space of torsion sheaves on Y. The result is expressed in terms of an ADE root system canonically associated to G.

Algebraic Geometry