Noncommutative rigidity of the moduli stack of stable pointed curves

Shinnosuke Okawa; Taro Sano

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arXiv · 1412.7060

Noncommutative rigidity of the moduli stack of stable pointed curves

Shinnosuke Okawa·Taro Sano

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Abstract

We prove that the second Hochschild cohomology group of the moduli stack of stable $n$-pointed genus $g$ curves vanishes for all but finitely many $(g,n)$.

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Shinnosuke Okawa, Taro Sano. 2014-12-22. Noncommutative rigidity of the moduli stack of stable pointed curves. https://arxiv.org/abs/1412.7060

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