Geometry/Physics Seminar

Title: Logarithmic Gromov-Witten invariants
Speaker: Dan Abramovich
Speaker Info: Brown University
Brief Description:
Special Note:

Logarithmic Gromov-Witten invariants generalize relative Gromov-Witten invariants, which count curves on a variety satisfying certain tangency conditions.

I will report on work of Qile Chen, Abramovich-Chen and Abramovich-Chen-Gillam-Marcus, and closely related work of Gross and Siebert. The main construction is that of logarithmic stable maps, proposed by Bernd Siebert in a 2001 lecture.

I will discuss the background and main ideas involved in such a construction, and describe an example where interesting geometry arises.

Date: Thursday, April 19, 2012
Time: 4:00pm
Where: Lunt 107
Contact Person: Ezra Getzler
Contact email: getzler@northwestern.edu
Contact Phone:
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