An Orthogonal Test of the L-Functions Ratios Conjecture

Details An Orthogonal Test of the L-Functions Ratios Conjecture An Orthogonal Test of the L-Functions Ratios Conjecture

2008-05-27

arxiv.org/abs/0805.4208v1

Mathematics

Number Theory

40 pages, first draft

Scientific paper

10.1112/plms/pdp009

We test the predictions of the L-functions Ratios Conjecture for the family of cuspidal newforms of weight k and level N, with either k fixed and N --> oo through the primes or N=1 and k --> oo. We study the main and lower order terms in the 1-level density. We provide evidence for the Ratios Conjecture by computing and confirming its predictions up to a power savings in the family's cardinality, at least for test functions whose Fourier transforms are supported in (-2, 2). We do this both for the weighted and unweighted 1-level density (where in the weighted case we use the Petersson weights), thus showing that either formulation may be used. These two 1-level densities differ by a term of size 1 / log(k^2 N). Finally, we show that there is another way of extending the sums arising in the Ratios Conjecture, leading to a different answer (although the answer is such a lower order term that it is hopeless to observe which is correct).

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