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The Jacobian and formal group of a curve of genus 2 over an arbitrary ground field

Published online by Cambridge University Press:  24 October 2008

Eugene Victor Flynn
Affiliation:
Department of Mathematics, University of Michigan, Ann Arbor, MI 48109, U.S.A.

Abstract

An embedding of the Jacobian variety of a curve of genus 2 is given, together with an explicit set of defining equations. A pair of local parameters is chosen, for which the induced formal group is defined over the same ring as the coefficients of . It is not assumed that has a rational Weierstrass point, and the theory presented applies over an arbitrary ground field (of characteristic ╪ 2, 3, or 5).

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1990

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References

REFERENCES

[1]Cassels, J. W. S.. The Mordell–Weil group of curves of genus 2. In Arithmetic and Geometry Papers Dedicated to I.R. Shafarevich on the Occasion of his Sixtieth Birthday, Vol. 1. Arithmetic (Birkhäuser, 1983), pp. 2960.Google Scholar
[2]Cassels, J. W. S.. Arithmetic of curves of genus 2. In Number Theory and Applications (Proceedings of a NATO conference in Banff, 1988), ed. Mollin, R. A. (D. Reidel Publishing Co., to appear).Google Scholar
[3]Flynn, E. V.. Curves of genus 2. Ph.D. dissertation, University of Cambridge (1989).Google Scholar
[4]Grant, D.. Formal groups in genus 2. J. Reine Angew. Math. (To appear.)Google Scholar
[5]Lang, S.. Diophantine Geometry (Springer-Verlag, 1963).Google Scholar
[6]Lang, S.. Introduction to Algebraic and Abelian Functions, 2nd edition. Graduate Texts in Math. no. 89 (Springer-Verlag, 1982).CrossRefGoogle Scholar
[7]Mattuck, A.. Abelian varieties over p-adic ground fields. Ann. of Math. (2) 62 (1955), 92119.CrossRefGoogle Scholar
[8]Montgomery, P. L.. Speeding up the Pollard and elliptic curve method of factorization. Math. Comp. 48 (1987), 243264.CrossRefGoogle Scholar
[9]Mumford, D.. On the equations defining abelian varieties I. Invent. Math. 1 (1966), 287354.CrossRefGoogle Scholar
[10]Mumford, D.. Tata Lectures on Theta. Progress in Mathematics, I, 28 and II, 43 (Birkhäuser, 1983).Google Scholar
[11]Serre, J. P.. Lie Algebras and Lie Groups (Benjamin, 1965).Google Scholar
[12]Silverman, J. H.. The Arithmetic of Elliptic Curves (Springer-Verlag, 1986).CrossRefGoogle Scholar