J. Iaia et H. Warchall, ENCAPSULATED-VORTEX SOLUTIONS TO EQUIVARIANT WAVE-EQUATIONS - EXISTENCE, SIAM journal on mathematical analysis (Print), 30(1), 1998, pp. 118-139
We prove the existence of vector-valued exponentially localized soluti
ons to a class of nonlinear elliptic equations with equivariant nonlin
earities. The elliptic equations govern the spatial profiles of solita
ry wave solutions to nonlinear wave equations with globally regular so
lutions. These solitary waves are localized versions of nonlinear Schr
odinger vortices. We use constructive methods to show that there are l
ocalized solutions with any prescribed number of nodal surfaces.