Stability of intrinsic localized modes on the lattice with competing power nonlinearities

Georgy L. Alfimov, Pavel A. Korchagin, Dmitry E. Pelinovsky

We study the discrete nonlinear Schrodinger equation with competing powers (p,q) satisfying 2 <= p < q. The physically relevant cases are given by (p,q) = (2,3), (p,q) = (3,4), and…