The generalized Jacobian reconstruction conjecture for pointed curves
The generalized Jacobian reconstruction conjecture for pointed curves
Let and be smooth, projective, irreducible pointed curves over , with moduli on respectively. Suppose the generalized Jacobians and have dimension at least two. Let and be the complements of the supports of and in and , respectively. If
is a group isomorphism satisfying with respect to the Abel–Jacobi embeddings determined by and , then arises from a morphism of curves composed with a limit of Frobenius maps sending to . The generalized Jacobian reconstruction conjecture. More precisely, there exists an integer , an isomorphism
and a generalized Frobenius restricting to on , such that sends to and to , and induces on generalized Jacobians. This strengthens the known zero-modulus reconstruction result to generalized Jacobians with moduli.
Sources & referencesView supporting material
Primary source
Jeremy Booher and José Felipe Voloch, “Recovering affine curves over finite fields from L-functions”, arXiv:2012.08683 (2021).
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