2 papers
math.NT2014
A necessary condition for characteristic zero universal deformation rings of finite group representations
Krzysztof Dorobisz
We prove the following result related to the inverse problem for universal deformation rings of group representations: Given a finite field k, denote by W(k) the ring of Witt vecto…
math.RT2013
The inverse problem for universal deformation rings and the special linear group
Krzysztof Dorobisz
We show that every complete noetherian local commutative ring R with residue field k can be realized as a universal deformation ring of a continuous linear representation of a prof…