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The binary Goldbach conjecture with primes in arithmetic progressions with large modulus

Claus Bauer, Yonghui Wang (2013)

Acta Arithmetica

It is proved that for almost all prime numbers k N 1 / 4 - ϵ , any fixed integer b₂, (b₂,k) = 1, and almost all integers b₁, 1 ≤ b₁ ≤ k, (b₁,k) = 1, almost all integers n satisfying n ≡ b₁ + b₂ (mod k) can be written as the sum of two primes p₁ and p₂ satisfying p i b i ( m o d k ) , i = 1,2. For the proof of this result, new estimates for exponential sums over primes in arithmetic progressions are derived.

Trace formulae and applications to class numbers

Nicole Raulf (2014)

Open Mathematics

In this paper we compute the trace formula for Hecke operators acting on automorphic forms on the hyperbolic 3-space for the group PSL2( 𝒪 K ) with 𝒪 K being the ring of integers of an imaginary quadratic number field K of class number H K > 1. Furthermore, as a corollary we obtain an asymptotic result for class numbers of binary quadratic forms.

Weight reduction for cohomological mod p modular forms over imaginary quadratic fields

Adam Mohamed (2014)

Publications mathématiques de Besançon

Let F be an imaginary quadratic field and 𝒪 its ring of integers. Let 𝔫 𝒪 be a non-zero ideal and let p > 5 be a rational inert prime in F and coprime with 𝔫 . Let V be an irreducible finite dimensional representation of 𝔽 ¯ p [ GL 2 ( 𝔽 p 2 ) ] . We establish that a system of Hecke eigenvalues appearing in the cohomology with coefficients in V already lives in the cohomology with coefficients in 𝔽 ¯ p d e t e for some e 0 ; except possibly in some few cases.

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