Modulation theory for self-focusing in the nonlinear Schrödinger-Helmholtz equation

Yanping Cao, Ziad H. Musslimani, Edriss S. Titi

The nonlinear Schrödinger-Helmholtz (SH) equation in $N$ space dimensions with $2\sigma$ nonlinear power was proposed as a regularization of the classical nonlinear Schrödinger (NLS) eq…