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arXiv · 1204.3201

Large universal deformation rings

Frauke M. Bleher
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Abstract

We provide a series of examples of finite groups G and mod p representations V of G whose stable endomorphisms are all given by scalars such that V has a universal deformation ring R(G,V) which is large in the sense that R(G,V)/pR(G,V) is isomorphic to a power series algebra in one variable.

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Frauke M. Bleher. 2012-04-14. Large universal deformation rings. https://doi.org/10.1090/s0002-9939-2014-12104-6

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