2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80965In the framework of extended nonlinear Schrodinger equation (ENSE) the classification of self-similar solutions by the relation between the amplitude and phase is performed. New solutions of ENSE - ``gray soliton'' and ``gray soliton chain'' are presented. The properties of these solutions and the possibility for using theirs in physical applications are discussed.4 pages, 2 figuresPattern Formation and SolitonsExactly Solvable and Integrable Systemstext