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math.AG2022★ 1 cited
Modular curves and Néron models of generalized Jacobians
Bruce W. Jordan, Kenneth A. Ribet, Anthony J. Scholl
Let be a smooth geometrically connected projective curve over the field of fractions of a discrete valuation ring , and a modulus on , given by a closed su…
math.NT2022★ 3 cited
Another look at rational torsion of modular Jacobians
Kenneth A. Ribet, Preston Wake
We study the rational torsion subgroup of the modular Jacobian for a square-free integer. We give a new proof of a result of Ohta on a generalization of Ogg's conjectu…