Abstract
Exact solutions of the nonlinear Schrödinger equation iψt+Δψ=a0ψ/B +a1ψ‖ψ2+a2ψ‖ψ4, for which initial conditions can be imposed on a cylinder, are presented. A symmetry group of the equation is used to reduce it to an ordinary differential equation which is then solved with the help of a singularity analysis. Solutions are obtained in terms of elementary functions, Jacobi elliptic functions, and Painlevé transcendents.