Un anneau de deformation universel en conducteur superieur A universal deformation ring in higher conductor - Mathematics > Number TheoryReport as inadecuate




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Abstract: Let k denote a perfect field of characteristic 5. We show that the versaldeformation ring of an element of order 5 and Hasse conductor 2 as automorphismof a ring of formal power series kt computed by Bertin and Mezard, is infact universal. This provides the first example of a non trivial universaldeformation ring in higher conductor.



Author: Gunther Cornelissen, Jakub Byszewski, Fumiharu Kato

Source: https://arxiv.org/



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