Added on March 27, 2012 by

NSThe spring 2012 iteration of the **Ellis R. Kolchin Memorial Lecture** will be delivered by **Prof. Tom Bridgeland** (All Souls College, Oxford) on Monday, April 23rd. Prof. Bridgeland will give the following lecture:

“*Tilting in Calabi-Yau Categories*”

Abstract: Tilting is a fundamental operation in homological algebra, with a variety of applications in both algebra and geometry. After explaining the general idea, I will focus on two examples. The first involves birational transformations of threefolds; here the tilting concept has recently led to explicit formulae describing the way Donaldson-Thomas invariants change under flops. The second example involves triangulations of surfaces and quiver mutation.

Monday, April 23rd at 4:30 pm

Julius S. Held Lecture Hall – 304 Barnard Hall

Barnard College, 3009 Broadway at 117th Street

Tea will be served at 4:00 pm in 508 Mathematics Hall

2990 Broadway at 117th Street

For lecture details via our promotional flyer, please visit:

http://www.math.columbia.edu/~staff/Kolchin-Spring-2012.pdf

Print this page