Periodic continued fractions and hyperelliptic curves

• Autores: M. P. Grosset, Alexander P. Veselov
• Localización: Journal of the London Mathematical Society, ISSN 0024-6107, Vol. 77, Nº 3, 2008, págs. 593-606
• Idioma: inglés
• DOI: 10.1112/jlms/jdm125
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• Resumen

  • We investigate when an algebraic function of the form ()=(�B()+R())/A(), where R() is a polynomial of odd degree N=2g+1 with coefficients in , can be written as a periodic -fraction of the form for some fixed sequence i. We show that this problem has a natural answer given by the classical theory of hyperelliptic curves and their Jacobi varieties. We also consider pure periodic -fraction expansions corresponding to the special case when bN=b0.