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Higher congruence companion forms

Adibhatla, Rajender and Manoharmayum, Jayanta (2011) Higher congruence companion forms. Preprintreihe der Fakultät Mathematik 26/201, Working Paper.

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Date of publication of this fulltext: 07 Sep 2011 06:08


For a rational prime p � 3 we consider p-ordinary, Hilbert modular newforms f of
weight k � 2 with associated p-adic Galois representations �f and mod pn reductions �f;n.
Under suitable hypotheses on the size of the image, we use deformation theory and modularity
lifting to show that if the restrictions of �f;n to decomposition groups above p split then f has a
companion form g modulo pn (in the sense that �f;n � �g;n

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Item type:Monograph (Working Paper)
Series of the University of Regensburg:Preprintreihe der Fakultät Mathematik
Institutions:Mathematics > Prof. Dr. Uwe Jannsen
Dewey Decimal Classification:500 Science > 510 Mathematics
Refereed:No, this version has not been refereed yet (as with preprints)
Created at the University of Regensburg:Yes
Item ID:22016
Owner only: item control page


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