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pro vyhledávání: '"Bergqvist, Jakob"'
We study the so-called sign involutions on twisted forms of abelian varieties, and show that such a sign involution exists if and only if the class in the Weil--Ch\^{a}telet group is annihilated by two. If these equivalent conditions hold, we prove t
Externí odkaz:
http://arxiv.org/abs/2301.03314
Publikováno v:
In Indagationes Mathematicae May 2024 35(3):570-583
