at a party at my house for
Mel's birthday.
Yogesh More (2008, University of Michigan)
PhD Thesis: Arc Valuations on Smooth Varieties.
Yogesh is a post-doc at the University of Missouri, working with Dan Edinin.
Here we are
in my kitchen at Yogesh's graduation party, and at the milkshake party with Andrey, Tapio and Helena.
Kevin Tucker (expected 2010)
is studying techniques for computing multiplier ideals and jumping numbers of ideal sheaves on mildly singular varieties. He is already an expert on surfaces, where he has completely described the jumping numbers in terms of the combinatorics and simple intersection theory of the exceptional divisors, including an algorithm to compute all jumping numbers, and also shown that every integrally closed ideal on log terminal surface is a multiplier ideal.
Lately, he's been learning prime characteristic techniques (F-splitting, etc) and thinking about higher dimensional birational geometry. With Karl Schweded, he found a formula for the number of log canonical centers of a pair, among other things. We're also talking about higher dimensional issues in the computation of multiplier ideals. Check out some of his work or our picture on Halloween on my front porch.
Daniel Hernandez (expected 2011) has been computing F-thresholds of hypersurfaces, and recently found a very nice formula for the F-threshold for many types of hypersurfaces, including Fermat-type and binomial hypersurfaces, as a function of the characteristic. He uses quite a bit of clever and tricky elementary number theory. He is working on the generalization to an arbitrary hypersurface. Here's Daniel on Halloween in front of my house with his girlfriend and my academic sister Emily Witt.
Chelsea Walton (expected 2011) is really my "foster student", having worked mostly with Toby Stafford on non-commutative projective algebraic geometry. She recently completed a beautiful classication of the
degenerate Sklyanin algebras. She splits her time between Michigan and Manchester England. I think we make a pretty cool pair of witches.
Michael Von Korff is just starting out, reading Hartshorne.
I am also working closely right now with Andrey Mishchenko (circle packing)
and with
Brian Wyman (extremal graph theory), though officially I believe I am not either one's PhD advisor at the moment.