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An old and new approach to Goormaghtigh’s equation
Transactions of the American Mathematical Society ( IF 1.2 ) Pub Date : 2020-05-26 , DOI: 10.1090/tran/8103 Michael A. Bennett , Adela Gherga , Dijana Kreso
Transactions of the American Mathematical Society ( IF 1.2 ) Pub Date : 2020-05-26 , DOI: 10.1090/tran/8103 Michael A. Bennett , Adela Gherga , Dijana Kreso
Abstract:We show that if is a fixed integer, then there exists an effectively computable constant such that if , , and are integers satisfying
with , then . In case , we solve the equation completely, subject to this non-coprimality condition. In case , our resulting computations require a variety of innovations for solving Ramanujan-Nagell equations of the shape , where is a given polynomial with integer coefficients (and degree at least two), and is a fixed integer.
中文翻译:
Goormaghtigh方程的新旧方法
摘要:我们发现,如果是一个固定的整数,则存在一个有效的可计算的常数,例如,如果,和为整数满足
用,然后。在这种情况下,在此非互素条件下,我们可以完全求解方程。在这种情况下,我们得出的计算结果需要多种创新来求解形状为Ramanujan-Nagell的方程,其中,是给定的具有整数系数(且度数至少为2)的多项式,并且是固定整数。
更新日期:2020-05-26
with , then . In case , we solve the equation completely, subject to this non-coprimality condition. In case , our resulting computations require a variety of innovations for solving Ramanujan-Nagell equations of the shape , where is a given polynomial with integer coefficients (and degree at least two), and is a fixed integer.
中文翻译:
Goormaghtigh方程的新旧方法
摘要:我们发现,如果是一个固定的整数,则存在一个有效的可计算的常数,例如,如果,和为整数满足
用,然后。在这种情况下,在此非互素条件下,我们可以完全求解方程。在这种情况下,我们得出的计算结果需要多种创新来求解形状为Ramanujan-Nagell的方程,其中,是给定的具有整数系数(且度数至少为2)的多项式,并且是固定整数。