Quasi-periodi solutions for two-level systems

Resonant periodi motion and the stability of extrasolar planetary systems

Pfair S heduling: Beyond Periodi Task Systems

Self-similar solutions‎ ‎of the Riemann problem for two-dimensional systems of conservation‎ ‎laws

In this paper, a new approach is applied to study the self-similar solutions of 2×2 systems of nonlinear hyperbolic conservation laws. A notion of characteristic directions is introduced and then used to construct local and smooth solutions of the associated Riemann problem

ar X iv : s ol v - in t / 9 90 40 17 v 1 1 6 A pr 1 99 9 QUASI - PERIODIC AND PERIODIC SOLUTIONS FOR SYSTEMS OF COUPLED NONLINEAR SCHRÖDINGER EQUATIONS

We consider travelling periodic and quasi-periodic wave solutions of a set of coupled nonlinear Schrödinger equations. In fibre optics these equations can be used to model single mode fibers with strong birefingence and two-mode optical fibers. Recently these equations appear as model, which describe pulse-pulse interaction in wavelength-division-multiplexed channels of optical fiber transmissi...

Periodi Ground States in the Neutral Fali ov-Kimball Model in Two Dimensions