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Journal of the American Mathematical Society
Journal of the American Mathematical Society
ISSN 1088-6834(online) ISSN 0894-0347(print)

 

Supersingular elliptic curves, theta series and weight two modular forms


Author: Matthew Emerton
Journal: J. Amer. Math. Soc. 15 (2002), 671-714
MSC (2000): Primary 11F11, 11F27, 11F37
Published electronically: February 27, 2002
MathSciNet review: 1896237
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Abstract: Let $p$ be a prime, and let $\mathcal{M}$ denote the space of weight two modular forms on $\Gamma _{0}(p)$ all of whose Fourier coefficients are integral, except possibly for the constant term, which should be either integral or half-integral. We prove that $\mathcal{M}$ is spanned as a $\mathbb{Z}$-module by theta series attached to the unique quaternion algebra that is ramified at $p$, at infinity, and at no other primes.


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Additional Information

Matthew Emerton
Affiliation: Department of Mathematics, Northwestern University, 2033 Sheridan Rd., Evanston, Illinois 60208-2730
Email: emerton@math.northwestern.edu

DOI: http://dx.doi.org/10.1090/S0894-0347-02-00390-9
PII: S 0894-0347(02)00390-9
Received by editor(s): November 1, 2000
Received by editor(s) in revised form: September 19, 2001
Published electronically: February 27, 2002
Article copyright: © Copyright 2002 American Mathematical Society