Hyperelliptic Curves, L-Polynomials, and Random Matrices

We analyze the distribution of unitarized L-polynomials Lp(T) (as p varies) obtained from a hyperelliptic curve of genus g [less than or equal to] 3 defined over Q. In the generic case, we find experimental agreement with a predicted correspondence (based on the Katz-Sarnak random matrix model) be...

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Main Authors: Kedlaya, Kiran S., Sutherland, Andrew Victor
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:en_US
Published: American Mathematical Society 2011
Online Access:http://hdl.handle.net/1721.1/64701
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author Kedlaya, Kiran S.
Sutherland, Andrew Victor
author2 Massachusetts Institute of Technology. Department of Mathematics
author_facet Massachusetts Institute of Technology. Department of Mathematics
Kedlaya, Kiran S.
Sutherland, Andrew Victor
author_sort Kedlaya, Kiran S.
collection MIT
description We analyze the distribution of unitarized L-polynomials Lp(T) (as p varies) obtained from a hyperelliptic curve of genus g [less than or equal to] 3 defined over Q. In the generic case, we find experimental agreement with a predicted correspondence (based on the Katz-Sarnak random matrix model) between the distributions of Lp(T) and of characteristic polynomials of random matrices in the compact Lie group USp(2g). We then formulate an analogue of the Sato-Tate conjecture for curves of genus 2, in which the generic distribution is augmented by 22 exceptional distributions, each corresponding to a compact subgroup of USp(4). In every case, we exhibit a curve closely matching the proposed distribution, and can find no curves unaccounted for by our classification.
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spelling mit-1721.1/647012022-09-29T17:23:38Z Hyperelliptic Curves, L-Polynomials, and Random Matrices Kedlaya, Kiran S. Sutherland, Andrew Victor Massachusetts Institute of Technology. Department of Mathematics Kedlaya, Kiran S. Kedlaya, Kiran S. Sutherland, Andrew Victor We analyze the distribution of unitarized L-polynomials Lp(T) (as p varies) obtained from a hyperelliptic curve of genus g [less than or equal to] 3 defined over Q. In the generic case, we find experimental agreement with a predicted correspondence (based on the Katz-Sarnak random matrix model) between the distributions of Lp(T) and of characteristic polynomials of random matrices in the compact Lie group USp(2g). We then formulate an analogue of the Sato-Tate conjecture for curves of genus 2, in which the generic distribution is augmented by 22 exceptional distributions, each corresponding to a compact subgroup of USp(4). In every case, we exhibit a curve closely matching the proposed distribution, and can find no curves unaccounted for by our classification. National Science Foundation (U.S.) (NSF CAREER grant DMS-0545904) Alfred P. Sloan Foundation (Sloan Fellowship) 2011-06-29T14:44:04Z 2011-06-29T14:44:04Z 2009-01 Article http://purl.org/eprint/type/ConferencePaper 978-0-8218-4716-9 http://hdl.handle.net/1721.1/64701 Kedlaya, Kiran S. and Andrew V. Sutherland. "Hyperelliptic Curves, L-Polynomials, and Random Matrices." in Arithmetic, Geometry, Cryptography, and Coding Theory: International Conference, November 5-9, 2007, CIRM, Marseilles, France. Gilles Lachaud, Christophe Ritzenthaler, Michael A. Tsfasman, editors. 2009. (Contemporary Mathematics ; v.487) en_US http://www.ams.org/bookstore-getitem/item=CONM-487 Contemporary Mathematics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Mathematical Society Prof. Kedlaya via Michael Noga
spellingShingle Kedlaya, Kiran S.
Sutherland, Andrew Victor
Hyperelliptic Curves, L-Polynomials, and Random Matrices
title Hyperelliptic Curves, L-Polynomials, and Random Matrices
title_full Hyperelliptic Curves, L-Polynomials, and Random Matrices
title_fullStr Hyperelliptic Curves, L-Polynomials, and Random Matrices
title_full_unstemmed Hyperelliptic Curves, L-Polynomials, and Random Matrices
title_short Hyperelliptic Curves, L-Polynomials, and Random Matrices
title_sort hyperelliptic curves l polynomials and random matrices
url http://hdl.handle.net/1721.1/64701
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AT sutherlandandrewvictor hyperellipticcurveslpolynomialsandrandommatrices