Indexed on: 28 Aug '08Published on: 28 Aug '08Published in: Mathematics - Algebraic Geometry
We prove that the moduli stack of stable curves of genus g with n marked points is rigid, i.e., 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.
Indexed on: 11 Sep '04
Published on: 11 Sep '04 in Pigment cell research / sponsored by the European Society for Pigment Cell Research and the International Pigment Cell Society