Standing Waves in a Non-linear 1D Lattice : Floquet Multipliers, Krein Signatures, and Stability

Subhendu Panda, Anindita Lahiri, Tarun K. Roy +1

We construct a class of exact commensurate and incommensurate standing wave (SW) solutions in a piecewise smooth analogue of the discrete non-linear Schrödinger (DNLS) model and pr…