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Average root numbers
in families of elliptic curves

Author: Ottavio G. Rizzo
Journal: Proc. Amer. Math. Soc. 127 (1999), 1597-1603
MSC (1991): Primary 11G05; Secondary 11D25, 11C08, 28C10
Published electronically: February 18, 1999
MathSciNet review: 1641093
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Abstract | References | Similar Articles | Additional Information

Abstract: We introduce a height measure on $\mathbf Q$ to count rational numbers. Through it, we prove a density result on the average value of the root numbers of families of twists of elliptic curves.

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Additional Information

Ottavio G. Rizzo
Affiliation: Department of Mathematics, Brown University, Box 1917, Providence, Rhode Island 02912
Address at time of publication: Department of Mathematics and Statistics, Queen’s University, Kingston, Ontario, Canada K7L 3N6

Received by editor(s): September 15, 1997
Published electronically: February 18, 1999
Additional Notes: This research was partially written while the author was supported by a grant of the Istituto Nazionale di Alta Matematica of Rome.
Communicated by: David E. Rohrlich
Article copyright: © Copyright 1999 American Mathematical Society

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