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Algebraic construction of Witten's top Chern class

Alexander Polishchuk·Arkady Vaintrob
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Abstract

We give a construction of Witten's "top Chern class" on the compactified moduli space of curves with higher spin structures and show that it satisfies most of the axioms proposed in math.AG/9905034.

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Alexander Polishchuk, Arkady Vaintrob. 2000-11-06. Algebraic construction of Witten's top Chern class. https://arxiv.org/abs/math/0011032

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