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Eta-product η(7τ)7/η(τ)

Kyoji Saito

math.NTarXiv:math/0602367

Abstract

The Dirichlet series associated to the eta-product η(7τ)7/η(τ) decomposes uniquely into the difference of two L-functions with Euler products. This expression gives a new proof of the positivity of the Fourier coefficients of the eta-product.

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