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4 votes

Real non trivial zeros of Dirichlet L-functions

The non-vanishing of $L$-series on the real line received a lot of attention, unfortunately, there is still a lot we do not know, even in the non-quadratic case. This circle of problems even has its o …
Jan-Christoph Schlage-Puchta's user avatar
2 votes

Modern Algebraic Geometry and Analytic Number Theory

From the point of view of analytic number theory the most important specific result which is proved using algebraic geometry is Burgess' bounds for character sums. The proof relies on Wiles bound for …
8 votes

meromorphic extension of dirichlet series

The maximal domain of meromorphic continuation of a Dirichlet series can be anything. More precisely, for every connected open subset $O$ of $\mathbb{C}$, which contains the half plane $\{\Re s>1\}$, …
Jan-Christoph Schlage-Puchta's user avatar
6 votes

What is the relationship between the abscissa of holomorphy and abscissa of convergence of a...

In general the answer is no, but if you assume that the $a_n$ are non-negative, then Landau's theorem tells you that $\phi$ has a singularity at $\sigma_{\mathrm{conv}}$, in particular $\sigma_{\mathr …
Jan-Christoph Schlage-Puchta's user avatar