Cuevas-Maraver, JesúsJames, GuillaumeKevrekidis, Panayotis G.Malomed, Boris A.Sánchez-Rey, Bernardo2015-09-022015-09-022008Cuevas-Maraver, J., James, G., Kevrekidis, P.G., Malomed, B.A. y Sánchez-Rey, B. (2008). Approximation of solitons in the discrete NLS equation. Journal of Nonlinear Mathematical Physics, 15 (Suppl. 3), 124-136.1402-92511776-0852http://hdl.handle.net/11441/28152Volume 15, Supplement 3, 2008 Special Issue: Nonlinear Evolution Equations and Dynamical Systems 2007We study four diferent approximations for finding the profile of discrete solitons in the one-dimensional Discrete Nonlinear Schrödinger (DNLS) Equation. Three of them are discrete approximations (namely, a variational approach, an approximation to homo- clinic orbits and a Green-function approach), and the other one is a quasi-continuum approximation. All the results are compared with numerical computations.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.2991/jnmp.2008.15.s3.13