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2008 The moduli space of curves is rigid
Paul Hacking
Algebra Number Theory 2(7): 809-818 (2008). DOI: 10.2140/ant.2008.2.809

Abstract

We prove that the moduli stack ¯g,n of stable curves of genus g with n marked points is rigid, that is, has no infinitesimal deformations. This confirms the first case of a principle proposed by Kapranov. It can also be viewed as a version of Mostow rigidity for the mapping class group.

Citation

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Paul Hacking. "The moduli space of curves is rigid." Algebra Number Theory 2 (7) 809 - 818, 2008. https://doi.org/10.2140/ant.2008.2.809

Information

Received: 30 November 2007; Revised: 6 August 2008; Accepted: 17 September 2008; Published: 2008
First available in Project Euclid: 20 December 2017

zbMATH: 1166.14019
MathSciNet: MR2460695
Digital Object Identifier: 10.2140/ant.2008.2.809

Subjects:
Primary: 14H10

Keywords: curve , moduli , rigidity

Rights: Copyright © 2008 Mathematical Sciences Publishers

Vol.2 • No. 7 • 2008
MSP
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