Colloquium
Effective divisors on moduli spaces of curves
Jenia Tevelev, UMass-Amherst

The main theme will be an interplay between global birational geometry of moduli spaces of curves and existence of special line bundles on individual curves, the so-called "Brill-Noether loci". I will review the classical Harris-Mumford story in high genus and then explain my recent results (joint with Ana-Maria Castravet) which turn this theory on its head for curves of genus zero with punctures. The talk is intended for a general audience and will be accessible to graduate students.

Refreshments at 3:45

4:00pm–5:00pm, Thursday, November 19, 2009 in LGRT 1634

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