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Rajan, C. S.
- Locally Potentially Equivalent Galois Representations
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Affiliations
1 Indian Statistical Institute c/o Society for Electronic Transactions and Security (SETS), MGR Knowledge City, C.I.T. Campus, Taramani, Chennai 600 113, IN
2 Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400 005, IN
1 Indian Statistical Institute c/o Society for Electronic Transactions and Security (SETS), MGR Knowledge City, C.I.T. Campus, Taramani, Chennai 600 113, IN
2 Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400 005, IN
Source
Journal of the Ramanujan Mathematical Society, Vol 27, No 1 (2012), Pagination: 77–90Abstract
We show that if two continuous semi-simple ℓ-adic Galois representations are locally potentially equivalent at a sufficiently large set of places then they are globaly potentially equivalent. We also prove an analogous result for arbitrarily varying powers of character values evaluated at the Frobenius conjugacy classes. In the context of modular forms, we prove: given two non-CM newforms f and g of weight at least two, such that ap( f )n p = ap(g)n p on a set of primes of positive upper density and for some set of natural numbers np, then f and g are twists of each other by a Dirichlet character.- Automorphisms of X(11) over Characteristic 3 and The Mathieu Group M11
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Authors
Affiliations
1 School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road Mumbai-400005, IN
1 School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road Mumbai-400005, IN