2013
DOI: 10.1016/j.jnt.2012.02.005
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D-elliptic sheaves and odd Jacobians

Abstract: We examine the existence of rational divisors on modular curves of D-elliptic sheaves and on Atkin-Lehner quotients of these curves over local fields. Using a criterion of Poonen and Stoll, we show that in infinitely many cases the Tate-Shafarevich groups of the Jacobians of these Atkin-Lehner quotients have non-square orders.

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Cited by 1 publication
(1 citation statement)
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“…Over the years, the third author of this paper have studied the arithmetic properties of D-elliptic sheaves and their modular varieties, trying to extend to this setting the rich theory of abelian surfaces with quaternionic multiplication and Shimura curves; see, for example, [19], [20], [21], [22], [23], [24], [25]. The current paper is a natural continuation of [25].…”
Section: Introductionmentioning
confidence: 99%
“…Over the years, the third author of this paper have studied the arithmetic properties of D-elliptic sheaves and their modular varieties, trying to extend to this setting the rich theory of abelian surfaces with quaternionic multiplication and Shimura curves; see, for example, [19], [20], [21], [22], [23], [24], [25]. The current paper is a natural continuation of [25].…”
Section: Introductionmentioning
confidence: 99%