Lower-Order Terms of the 1-Level Density of Families of Elliptic Curves

Details Lower-Order Terms of the 1-Level Density of Families of Elliptic Curves Lower-Order Terms of the 1-Level Density of Families of Elliptic Curves

2004-08-25

arxiv.org/abs/math/0408359v2

Int. Math. Res. Not. 2005, no. 10, 587-633

Mathematics

Number Theory

35 pages; minor changes, mostly in exposition; to be published in IMRN

Scientific paper

10.1155/IMRN.2005.587

The Katz-Sarnak philosophy predicts that statistics of zeros of families of L-functions are strikingly universal. However, subtle arithmetical differences between families of the same symmetry type can be detected by calculating lower-order terms of the statistics of interest. In this paper we calculate lower-order terms of the 1-level density of some families of elliptic curves. We show that there are essentially two different effects on the distribution of low-lying zeros. First, low-lying zeros are more numerous in families of elliptic curves E with relatively large numbers of points (mod p). Second, and somewhat surprisingly, a family with a relatively large number of primes of bad reduction has relatively fewer low-lying zeros. We also show that the lower order term can grow arbitrarily large by taking a biased family with a relatively large number of points (mod p) for all small primes p.

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