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Cohomological field theories with non-tautological classes

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 نشر من قبل Rahul Pandharipande
 تاريخ النشر 2018
  مجال البحث
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A method of constructing Cohomological Field Theories (CohFTs) with unit using minimal classes on the moduli spaces of curves is developed. As a simple consequence, CohFTs with unit are found which take values outside of the tautological cohomology of the moduli spaces of curves. A study of minimal classes in low genus is presented in the Appendix by D. Petersen.



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