Torsion points on fermat curves
Robert F. Coleman (1986)
Compositio Mathematica
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Robert F. Coleman (1986)
Compositio Mathematica
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Evelina Viada (2003)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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We consider an irreducible curve in , where is an elliptic curve and and are both defined over . Assuming that is not contained in any translate of a proper algebraic subgroup of , we show that the points of the union , where ranges over all proper algebraic subgroups of , form a set of bounded canonical height. Furthermore, if has Complex Multiplication then the set , for ranging over all algebraic subgroups of of codimension at least , is finite. If has no...
Bas Edixhoven (1993-1994)
Séminaire Bourbaki
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Matthew H. Baker, Kenneth A. Ribet (2003)
Journal de théorie des nombres de Bordeaux
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In this paper, we survey some Galois-theoretic techniques for studying torsion points on curves. In particular, we give new proofs of some results of A. Tamagawa and the present authors for studying torsion points on curves with “ordinary good” or “ordinary semistable” reduction at a given prime. We also give new proofs of : (1) the Manin-Mumford conjecture : there are only finitely many torsion points lying on a curve of genus at least embedded in its jacobian by an Albanese map;...
Raymond Ross (1992)
Compositio Mathematica
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Horst G. Zimmer (1977)
Mémoires de la Société Mathématique de France
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Barry Mazur (1977)
Publications Mathématiques de l'IHÉS
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Poonen, Bjorn (2001)
Experimental Mathematics
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Eduardo Casas-Alvero (1991)
Annales de l'institut Fourier
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The base points of the system of polar curves of an irreducible algebroid plane curve with general moduli are determined. As consequences a lower bound for the Tjurina number and many continuous analytic invariants of the curve are found.