University of Georgia
Department of Mathematics

Seminar Schedule
September 19 – September 23, 2005
All Seminars are held in Boyd Graduate Studies Bldg. unless otherwise noted.

MONDAY, September 19, 2005

Topology/Geometry
2:30-4:30pm, Room 303
Speaker: John Etnyre, University of Pennsylvania
Title of talk: Achiral Lefschetz fibrations of 4-manifolds

Algebra
2:30-3:30pm., Room 410
Speaker: Jon Carlson, University of Georgia
Title of talk: Counting Blocks, Part I.

Faculty and Graduate Social
3:00pm, Room 409
Coffee, Cookies, Tea

TUESDAY, September 20, 2005

VIGRE-Graduate Student Seminar
2:00p.m., Room 303
Speaker: John Etnyre, Georgia Tech
Title of talk: Knots, surfaces and contact geometry

WEDNESDAY, September 21, 2005

Algebraic Geometry
2:30-3:45pm, Room 410
Speaker: Peter Petrov, University of Georgia
Title of talk: Nash Problem For Stable Toric Varieties
Abstract: After quickly introducing Nash conjecture and its solution by Koll\'ar and Ishii in the case of toric varieties, I will prove it in a new case, that of stable toric varieties. As an intermediate step, I will introduce "Nash problem for pairs", which may be of independent interest in other situations as well.

Faculty and Graduate Social
3:00pm, Room 409
Coffee, Cookies, Tea

Number Theory
3:30p.m., Room 304
Speaker: Patrick Corn, University of Georgia
Title of talk: Rational points on surfaces, Part 3
We'll discuss how to explicitly compute the Brauer-Manin obstruction for some Del Pezzo surfaces.

VIGRE-Algebra
3:45p.m., Room 326
Organizer: Daniel Nakano, University of Georgia
Activity: Computing Lie algebra cohomology for low rank Lie algebras.

THURSDAY, September 22, 2005

VIGRE-Feynman Diagrams
2:00pm, Room 326

VIGRE Algebraic Geometry Group
3:30 pm in room 323

FRIDAY, September 23, 2005

Probability Theory
2:30pm, Room 303
Speaker: Chao Zhuang, University of Georgia
Title of talk: Estimating the price of default risk