has subject area 0101 Pure Mathematics (FoR) 0103 Numerical and Computational Mathematics (FoR) 0913 Mechanical Engineering (FoR)
keywords BIFURCATION EXISTENCE Fourier analysis GAP SOLITONS Lyapunov-Schmidt reductions MODULATING PULSE SOLUTIONS Mathematics Mathematics, Applied PROPAGATION Physical Sciences SCHRODINGER-EQUATION Science & Technology WAVE-EQUATIONS coupled-mode equations gap solitons in periodic potentials justification of asymptotic approximations