Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9496501 | Journal of Number Theory | 2005 | 31 Pages |
Abstract
We give a parametrization of the possible Serre invariants (N,k,ν) of modular modâ Galois representations of the exceptional types A4, S4, A5, in terms of local data attached to the fields cut out by the associated projective representations. We show how this result combined with certain global considerations leads to an effective procedure that will determine for a given eigenform f and prime â whether a modâ representation attached to f is exceptional. We illustrate with numerical examples.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Ian Kiming, Helena A. Verrill,