2008/07/16 by A. N. W. Hone, Hone, A. N. W.
Physics and Astronomy · #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Physical sciences #nlin.SI
paper · pdf · doi:10.48550/arxiv.0807.2538
Poster at SIDE 6, Helsinki, Finland, 19-24 June 2004. One reference and some numerical values have been updated. The conjecture on p.6 is wrong
arxiv created 2008/07/16 · arxiv updated 2009/12/01
We consider some bilinear recurrences that have applications in number theory. The explicit solution of a general three-term bilinear recurrence relation of fourth order is given in terms of the Weierstrass sigma function for an associated elliptic curve. The recurrences can generate integer sequences, including the Somos 4 sequence and elliptic divisibility sequences. An interpretation via the theory of integrable systems suggests the relation between certain higher order recurrences and hyperelliptic curves of higher genus. Analogous sequences associated with a q-discrete Painlevé I equation are briefly considered.