English

On sequences of consecutive squares on elliptic curves

Number Theory 2017-08-15 v1

Abstract

Let CC be an elliptic curve defined over Q\mathbb Q by the equation y2=x3+Ax+By^2=x^3+Ax+B where A,BQA,B\in\mathbb Q. A sequence of rational points (xi,yi)C(Q),i=1,2,,(x_i,y_i)\in C(\mathbb Q),\,i=1,2,\ldots, is said to form a sequence of consecutive squares on CC if the sequence of xx-coordinates, xi,i=1,2,x_i,i=1,2,\ldots, consists of consecutive squares. We produce an infinite family of elliptic curves CC with a 55-term sequence of consecutive squares. Furthermore, this sequence consists of five independent rational points in C(Q)C(\mathbb Q). In particular, the rank rr of C(Q)C(\mathbb Q) satisfies r5r\ge 5.

Keywords

Cite

@article{arxiv.1602.05862,
  title  = {On sequences of consecutive squares on elliptic curves},
  author = {Mohamed Kamel and Mohammad Sadek},
  journal= {arXiv preprint arXiv:1602.05862},
  year   = {2017}
}