Existence of families of Galois representations and new cases of the Fontaine-Mazur conjecture

Verfasser / Beitragende:
[Luis V. Dieulefait]
Ort, Verlag, Jahr:
2004
Enthalten in:
Journal für die reine und angewandte Mathematik (Crelles Journal), 2004/577(2004-11-30), 147-151
Format:
Artikel (online)
ID: 378892428
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024 7 0 |a 10.1515/crll.2004.2004.577.147  |2 doi 
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100 1 |a Dieulefait  |D Luis V.  |u 1. Barcelona. 
245 1 0 |a Existence of families of Galois representations and new cases of the Fontaine-Mazur conjecture  |h [Elektronische Daten]  |c [Luis V. Dieulefait] 
520 3 |a In a previous article, we have proved a result asserting the existence of a compatible family of Galois representations containing a given crystalline irreducible odd two-dimensional representation. We apply this result to establish new cases of the Fontaine-Mazur conjecture, namely, an irreducible Barsotti-Tate λ-adic 2-dimensional Galois representation unramified at 3 and such that the traces ap of the images of Frobenii verify ℚ({a2 p}) = ℚ always comes from an abelian variety. We also show the non-existence of irreducible Barsotti-Tate 2-dimensional Galois representations of conductor 1 and apply this to the irreducibility of Galois representations on level 1 genus 2 Siegel cusp forms. 
540 |a © Walter de Gruyter 
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