RT info:eu-repo/semantics/article T1 Solitary-Wave solutions of the fractional nonlinear Schrödinger Equation: I—Existence and numerical generation A1 Durán Martín, Ángel A1 Reguera, Nuria K1 Fractional nonlinear Schrödinger equations K1 Solitary waves K1 Petviashvili iterative method K1 Pseudospectral methods K1 12 Matemáticas AB The present paper is the first part of a project devoted to the fractional nonlinearSchrödinger (fNLS) equation. It is concerned with the existence and numerical gener-ation of the solitary-wave solutions. For the first point, some conserved quantities ofthe problem are used to search for solitary-wave solutions from a constrained criticalpoint problem and the application of the concentration-compactness theory. Severalproperties of the waves, such as the regularity and the asymptotic decay in some cases,are derived from the existence result. Some other properties, such as the monotonebehavior and the speed-amplitude relation, will be explored computationally. To thisend, a numerical procedure for the generation of the profiles is proposed. The methodis based on a Fourier pseudospectral approximation of the differential system for theprofiles and the use of Petviashvili’s iteration with extrapolation. PB Springer SN 0938-8974 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/75213 UL https://uvadoc.uva.es/handle/10324/75213 LA eng NO Journal of Nonlinear Science, 2024, vol. 34, n. 6 NO Producción Científica DS UVaDOC RD 05-abr-2025