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A remark on the decomposition of the Jacobian variety of Fermat curves of prime degree

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Abstract

Recently, Barraza–Rojas have described the action of the full automorphisms group on the Fermat curve of degree p, for p a prime integer, and obtained the group algebra decomposition of the corresponding Jacobian variety. In this short note, we observe that the factors in such a decomposition are given by the Jacobian varieties of certain p-gonal curves.

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Correspondence to Ruben A. Hidalgo.

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Partially supported by Fondecyt Grants 1150003 and 1141099.

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Hidalgo, R.A., Rodríguez, R.E. A remark on the decomposition of the Jacobian variety of Fermat curves of prime degree. Arch. Math. 105, 333–341 (2015). https://doi.org/10.1007/s00013-015-0815-9

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  • DOI: https://doi.org/10.1007/s00013-015-0815-9

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