On local Galois representations associated to ordinary Hilbert modular forms

Balasubramanyam, Baskar ; Ghate, Eknath ; Vatsal, Vinayak (2013) On local Galois representations associated to ordinary Hilbert modular forms Manuscripta Mathematica, 142 (3-4). pp. 513-524. ISSN 0025-2611

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Official URL: http://link.springer.com/article/10.1007/s00229-01...

Related URL: http://dx.doi.org/10.1007/s00229-013-0614-1

Abstract

Let F be a totally real field and p be an odd prime which splits completely in F. We show that a generic p-ordinary non-CM primitive Hilbert modular cuspidal eigenform over F of parallel weight two or more must have a locally non-split p-adic Galois representation, at at least one of the primes of F lying above p. This is proved under some technical assumptions on the global residual Galois representation. We also indicate how to extend our results to nearly ordinary families and forms of non-parallel weight.

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