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arxiv: 1804.05467 · v1 · pith:VYDPUSGMnew · submitted 2018-04-16 · 🧮 math.AG

Generalized boundary strata classes

classification 🧮 math.AG
keywords classesboundarystratadescribegeneralizedringsubringadditively
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We describe a generalization of the usual boundary strata classes in the Chow ring of $\overline{\mathcal{M}}_{g,n}$. 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.

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