University of Cambridge > Talks.cam > Algebraic Geometry Seminar > The eleventh cohomology of moduli spaces of stable curves

The eleventh cohomology of moduli spaces of stable curves

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Dhruv Ranganathan.

The odd cohomology groups Hk, for k at most 9, of the moduli spaces of stable curves of genus g with n marked points all vanish by work of Arbarello—Cornalba (k=1,3,5) and Bergström—Faber—Payne (k=7,9). On the other hand H11 of the moduli space of stable genus 1 curves with at least 11 marked points never vanishes because of the existence of the discriminant cusp form. I will explain the surprising result that H^11 vanishes in all other cases. This talk is based on joint work with Hannah Larson and Sam Payne.

This talk is part of the Algebraic Geometry Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2022 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity