RT info:eu-repo/semantics/article T1 On nonparaxial nonlinear Schrödinger-type equations A1 Cano Urdiales, Begoña A1 Durán Martín, Ángel AB In this paper the one-dimensional nonparaxial nonlinear Schrödinger equation is considered.This was proposed as an alternative to the classical nonlinear Schrödinger equationin those situations where the assumption of paraxiality may fail. The paper contributesto the mathematical properties of the equation in a two-fold way. First, some theoreticalresults on linear well-posedness, Hamiltonian and multi-symplectic formulations arederived. Then we propose to take into account these properties in order to deal withthe numerical approximation. In this sense, different numerical procedures that preservethe Hamiltonian and multi-symplectic structures are discussed and illustrated withnumerical experiments. YR 2019 FD 2019 LK http://uvadoc.uva.es/handle/10324/37954 UL http://uvadoc.uva.es/handle/10324/37954 LA spa NO Journal of Computational and Applied Mathematics *, *, p. *-* DS UVaDOC RD 19-abr-2024