Principally Polarizable Isogeny Classes of Abelian Surfaces over Finite Fields
نویسندگان
چکیده
Let A be an isogeny class of abelian surfaces over Fq with Weil polynomial x4+ax3+bx2+aqx+q2. We show that A does not contain a surface that has a principal polarization if and only if a2 − b = q and b < 0 and all prime divisors of b are congruent to 1 modulo 3.
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