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Principal polarizations of abelian surfaces over finite fields

Published online by Cambridge University Press:  22 January 2016

Stuart Turner*
Affiliation:
Pontificia Universidade Católica, do Rio de Janeiro
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In § 1 of this note we construct abelian varieties of dimension two defined over Fpn, n odd, which admit infinitely many distinct principal polarizations. These polarizations determine an infinite family of geometrically non-isomorphic complete singular curves defined and irreducible over Fpn which have isomorphic Jacobian varieties. In § 2 we calculate the zeta function of these curves.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1980

References

[1] Honda, T., Isogeny classes of abelian varieties over finite fields, J. Math. Soc. Japan 20 (1968), 8395.Google Scholar
[2] Hoyt, W. L., On products and algebraic families of Jacobian varieties, Ann. of Math. 77 (1963), 415423.Google Scholar
[3] Lang, S., Abelian Varieties, Interscience, New York, 1959.Google Scholar
[4] Mumford, D., Abelian Varieties, Oxford University Press, London, 1970.Google Scholar
[5] Tate, J., Classes d’isogénie des variétés abéliennes sur un corps fini, Sem. Bourbaki 21 (1968/69), no. 352.Google Scholar
[6] Tate, J., Endomorphisms of abelian varieties over finite fields, Invent. Math. 2 (1966), 134144.Google Scholar
[7] Water house, W., Abelian varieties over finite fields, Ann. scient. Éc. Norm. Sup. 4, t. 2 (1969), 521560.Google Scholar
[8] Waterhouse, W. and Milne, J. S., Abelian varieties over finite fields, in Proc. Symp. Pure Math. XX, American Mathematical Society, Providence, (1971), 5364.Google Scholar