Geometry/Physics Seminar

Title: Characteristic Numbers For Surfaces
Speaker: Professor Izzet Coskun
Speaker Info: Harvard University
Brief Description:

In the 1990s inspired by the work of Kontsevich, many mathematicians provided recursive formulae for the number of curves in projective space incident to linear spaces. Finding these numbers, usually refered to as characteristic numbers, have motivated many of the developments in algebraic geometry and intersection theory since the work of 19th century masters Schubert and Zeuthen.

After briefly recalling the methods used in the curve case, I will describe recent work on finding the characteristic numbers of surfaces using degeneration methods. As a consequence of the enumerative geometry of surfaces, I will give an algorithm for computing certain Gromov-Witten invariants of Grassmannians.

Date: Thursday, January 15, 2004
Time: 4:00pm
Where: Lunt 104
Contact Person: Prof. Eric Zaslow
Contact email: zaslow@math.northwestern.edu
Contact Phone: 847-467-6447
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