Low-lying zeros of $L$ -functions with orthogonal symmetry
Hughes, C. P. ; Miller, Steven J.
Duke Math. J., Tome 136 (2007) no. 1, p. 115-172 / Harvested from Project Euclid
We investigate the moments of a smooth counting function of the zeros near the central point of $L$ -functions of weight $k$ cuspidal newforms of prime level $N$ . We split by the sign of the functional equations and show that for test functions whose Fourier transform is supported in $(-1/n,1/n)$ , as $N\to\infty$ the first $n$ centered moments are Gaussian. By extending the support to $(-1/(n-1),1/(n-1))$ , we see non-Gaussian behavior; in particular, the odd-centered moments are nonzero for such test functions. If we do not split by sign, we obtain Gaussian behavior for support in $(-{2/n}, {2/n})$ if $2k \ge n$ . The $n$ th-centered moments agree with random matrix theory in this extended range, providing additional support for the Katz-Sarnak conjectures. The proof requires calculating multidimensional integrals of the nondiagonal terms in the Bessel-Kloosterman expansion of the Petersson formula. We convert these multidimensional integrals to one-dimensional integrals already considered in the work of Iwaniec, Luo, and Sarnak [ILS] and derive a new and more tractable expression for the $n$ th-centered moments for such test functions. This new formula facilitates comparisons between number theory and random matrix theory for test functions supported in $(-{1/(n-1)},{1/(n-1)})$ by simplifying the combinatorial arguments. As an application we obtain bounds for the percentage of such cusp forms with a given order of vanishing at the central point
Publié le : 2007-01-15
Classification:  11M26,  11M41,  15A52
@article{1165244881,
     author = {Hughes, C. P. and Miller, Steven J.},
     title = {Low-lying zeros of $L$ -functions with orthogonal symmetry},
     journal = {Duke Math. J.},
     volume = {136},
     number = {1},
     year = {2007},
     pages = { 115-172},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1165244881}
}
Hughes, C. P.; Miller, Steven J. Low-lying zeros of $L$ -functions with orthogonal symmetry. Duke Math. J., Tome 136 (2007) no. 1, pp.  115-172. http://gdmltest.u-ga.fr/item/1165244881/