English

Solutions of Several Coupled Discrete Models in terms of Lame Polynomials of Arbitrary Order

Mathematical Physics 2015-06-03 v1 math.MP

Abstract

Coupled discrete models abound in several areas of physics. Here we provide an extensive set of exact quasiperiodic solutions of a number of coupled discrete models in terms of Lam\'e polynomials of arbitrary order. The models discussed are (i) coupled Salerno model, (ii) coupled Ablowitz-Ladik model, (iii) coupled ϕ4\phi^4 model, and (iv) coupled ϕ6\phi^6 model. In all these cases we show that the coefficients of the Lam\'e polynomials are such that the Lam\'e polynomials can be reexpressed in terms of Chebyshev polynomials of the relevant Jacobi elliptic function.

Keywords

Cite

@article{arxiv.1111.6138,
  title  = {Solutions of Several Coupled Discrete Models in terms of Lame Polynomials of Arbitrary Order},
  author = {Avinash Khare and Avadh Saxena and Apoorva Khare},
  journal= {arXiv preprint arXiv:1111.6138},
  year   = {2015}
}