Measures of irrationality for algebraic varieties
Speaker: Robert Lazarsfeld, Stony Brook
Abstract: Recall that an algebraic variety is said to be rational if it contains a Zariski open subset isomorphic to a Zariski open subset of projective space. Issues of rationality have been the subject of a great deal of recent interest and progress, but most varieties aren't rational. I will survey a growing body of work devoted to a complementary question, namely: how can one measure and control "how irrational" is an irrational variety?
Room Reservation Information
Room Number: 106 McAllister
Time: 11:00am - 11:50am