Department of

# Mathematics

Seminar Calendar
for events the day of Tuesday, June 27, 2006.

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Questions regarding events or the calendar should be directed to Tori Corkery.
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1  2  3  4  5  6                1  2  3                      1
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Tuesday, June 27, 2006

1:00 pm in 243 Altgeld Hall,Tuesday, June 27, 2006

#### Parameter spaces in algebraic geometry

###### Sheldon Katz   [email] (UIUC Math and Physics)

Abstract: In algebraic geometry, we often need to study all geometric objects of a certain type, e.g. all hyperplanes in a fixed projective space, or all lines in a fixed projective space, or all elliptic curves up to isomorphism. At this level of detail, we are only considering the set of all such objects. But there is a natural way to endow this set with an algebraic structure (or analytic structure if you're a complex geometer), arriving at, in the above examples, dual projective spaces, Grassmannians, and the moduli space of elliptic curves. This is an elemantary talk, and will assume only basic familiarity with algebraic or complex geometry.