Large universal deformation rings
classification
🧮 math.GR
keywords
deformationlargeseriesuniversalalgebraendomorphismsexamplesfinite
read the original 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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