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arXiv · 2010.12929

Remarks on the Selberg--Delange method

Régis de la Bretèche·Gérald Tenenbaum
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Abstract

Let $\varrho$ be a complex number and let $f$ be a multiplicative arithmetic function whose Dirichlet series takes the form $\zeta(s)^\varrho G(s)$, where $G$ is associated to a multiplicative function $g$. The classical Selberg-Delange method furnishes asymptotic estimates for averages of $f$ under assumptions of either analytic continuation for $G$, or absolute convergence of a finite number of derivatives of $G(s)$ at $s=1$. We consider different set of hypotheses, not directly comparable to the previous ones, and investigate how they can yield sharp asymptotic estimates for the averages of~$f$.

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Régis de la Bretèche, Gérald Tenenbaum. 2020-10-24. Remarks on the Selberg--Delange method. https://arxiv.org/abs/2010.12929

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