Department of

Mathematics


Seminar Calendar
for events the day of Thursday, January 19, 2006.

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Questions regarding events or the calendar should be directed to Tori Corkery.
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Thursday, January 19, 2006

1:00 pm in 347 Altgeld Hall,Thursday, January 19, 2006

Organisational meeting

Abstract: We will be looking for speakers in the seminar.

2:00 pm in 241 Altgeld Hall,Thursday, January 19, 2006

Organizational Meeting

Abstract: The algbraic number theory seminar will continue themes from the Fall 2005 topics courses on Elliptic Curves (Duursma) and Iwasawa Theory (Ullom). There is no preset program, we plan to follow the preferences of the audience one seminar at a time. A first organizational meeting is scheduled for January 19.

4:00 pm in 245 Altgeld Hall,Thursday, January 19, 2006

Modular, log canonical, and tropical compactifications

Evgueni Tevelev (University of Texas at Austin )

Abstract: The celebrated moduli space of stable curves of Grothendieck, Knudsen, and Mumford admits a straightforward generalization in all dimensions: the moduli space of stable pairs introduced by Kollar, Shepherd-Barron, and Alexeev. Unfortunately, their construction is not effective and relies on the (still conjectural) Minimal Model Program. Using the classical example of a cubic surface with 27 lines, I'll describe joint work with Hacking and Keel where we construct the moduli space of stable Del Pezzo surfaces and describe its boundary using non-archimedean amoebas. This is one instance of the beautiful connection between the Mori theory and the "tropical geometry". Host: S. Katz