Journal of Integer Sequences, Vol. 18 (2015), Article 15.5.2

Arithmetic Progressions on Huff Curves


Ajai Choudhry
13/4 A Clay Square
Lucknow - 226001
India

Abstract:

Several mathematicians have studied the problem of finding a set of n rational points on various models of elliptic curves such that the abscissae of these n points are in arithmetic progression. This paper is concerned with finding such arithmetic progressions on the Huff model of elliptic curves. Moody has found arithmetic progressions of length 9 on several infinite families of Huff curves with numerical coefficients. In this paper we find infinitely many parametrized families of Huff curves on which there are arithmetic progressions of length 9, as well as several Huff curves on which there are arithmetic progressions of length 11.


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Received January 1 2015; revised version received March 23 2015. Published in Journal of Integer Sequences, May 19 2015.


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