Localized coherent structures and integrability in a generalized (2 + 1)-dimensional nonlinear Schrödinger equation

A generalized (2 + 1)-dimensional nonlinear Schrödinger equation introduced recently by Fokas is investigated and is shown to admit the Painlevé property. The Hirota bilinearization directly follows from the singularity analysis. Localized dromion solutions, which arise essentially due to the interaction of two nonparallel ghost solitons and localized breather solutions (time oscillating solutions), are constructed using the Hirota method. This method can be rigorously pursued to generate multidromions and multibreathers.