Murty–Patankar splitting conjecture for absolutely simple abelian varieties
Murty–Patankar splitting conjecture for absolutely simple abelian varieties
Let be an absolutely simple abelian variety over a number field . Say that a prime of is a splitting prime for when the reduction of at that prime is not simple. Murty–Patankar's splitting conjecture. The set of primes of where splits has positive density if and only if is noncommutative.
This conjecture predicts that positive-density splitting of an absolutely simple abelian variety is governed precisely by whether its geometric endomorphism ring is noncommutative. The supplied text gives no resolution, so its status remains open.
Sources & referencesView supporting material
Primary source
Jeff Achter, “Split reductions of simple abelian varieties”, arXiv:0806.4421 (2009).
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