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The distribution of the logarithm in an orthogonal and a symplectic family of L-functions

An erratum for this article can be found here: https://doi.org/10.1515/forum-2014-0064
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Published/Copyright: January 13, 2012

Abstract

We consider the logarithm of the central value logL(1/2) in the orthogonal family {L(s,f)}fHk where Hk is the set of weight k Hecke-eigen cusp forms for SL2(), and in the symplectic family {L(s,χ8d)}dD where χ8d is the real character associated to fundamental discriminant 8d. Unconditionally, we prove that the two distributions are asymptotically bounded above by Gaussian distributions, in the first case of mean -1/2loglogk and variance loglogk, and in the second case of mean 1/2loglogD and variance loglogD. Assuming both the Riemann and Zero Density Hypotheses in these families we obtain the full normal law in both families, confirming a conjecture of Keating and Snaith.

Received: 2011-10-3
Revised: 2011-11-15
Published Online: 2012-1-13
Published in Print: 2014-3-1

© 2015 by De Gruyter

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