English

Generalized boundary strata classes

Algebraic Geometry 2018-04-17 v1

Abstract

We describe a generalization of the usual boundary strata classes in the Chow ring of Mg,n\overline{\mathcal{M}}_{g,n}. The generalized boundary strata classes additively span a subring of the tautological ring. We describe a multiplication law satisfied by these classes and check that every double ramification cycle lies in this subring.

Keywords

Cite

@article{arxiv.1804.05467,
  title  = {Generalized boundary strata classes},
  author = {Aaron Pixton},
  journal= {arXiv preprint arXiv:1804.05467},
  year   = {2018}
}

Comments

For the Proceedings of the 2017 Abel Symposium, 10 pages