Galois representations attached to Q-curves and the generalized Fermat equation A + B = C
نویسنده
چکیده
We prove that the equation A+B = C has no solutions in coprime positive integers when p ≥ 211. The main step is to show that, for all sufficiently large primes p, every Q-curve over an imaginary quadratic field K with a prime of bad reduction greater than 6 has a surjective mod p Galois representation. The bound on p depends on K and the degree of the isogeny between E and its Galois conjugate, but is independent of the choice of E. The proof of this theorem combines geometric arguments due to Mazur, Momose, Darmon, and Merel with an analytic estimate of the average special values of certain L-functions.
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We prove that the equation A+B = Cp has no solutions in coprime positive integers when p ≥ 211. The main step is to show that, for all sufficiently large primes p, every Q-curve over an imaginary quadratic field K with a prime of bad reduction greater than 6 has a surjective mod p Galois representation. The bound on p depends on K and the degree of the isogeny between E and its Galois conjugate...
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