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Algebraic maps constant on isomorphism classes of unpolarized abelian varieties are constant
Algebra & Number Theory ( IF 0.9 ) Pub Date : 2021-05-20 , DOI: 10.2140/ant.2021.15.711
Eric Rains , Karl Rubin , Travis Scholl , Shahed Sharif , Alice Silverberg

We show that if a rational map is constant on each isomorphism class of unpolarized abelian varieties of a given dimension, then it is a constant map. Our results shed light on a question raised by Boneh et al. (J. Math. Cryptol. 14:1 (2020), 5–14) concerning a proposal for multiparty noninteractive key exchange.



中文翻译:

非极化阿贝尔变体的同构类上的代数映射常数是常数

我们证明,如果一个有理映射在给定维度的非极化阿贝尔变体的每个同构类上是常数,那么它就是一个常数映射。我们的结果阐明了 Boneh 等人提出的一个问题。( J.  Math. Cryptol.  14:1 (2020), 5-14) 关于多方非交互式密钥交换的提议。

更新日期:2021-05-20
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