GENERAL
SEMINAR

“Weighted homogeneous
singularities and rational

homology disk smoothings”

by

Mohan
Bhupal

METU-University
of Florida

Abstract: We
classify the resolution graphs of weighted homogeneous surface singularities
which admit rational homology disk smoothings. The nonexistence of rational
homology disk smoothings is shown by symplectic geometric methods, while the
existence is verified via smoothings of negative weight.

Date : March 9, 2011 (Wednesday)

Time : 15.40-16.30

Place: Bilkent University ,Mathematics Seminar Room SA141

Tea will be served before the seminar.