Spectral and Modulational Stability of Periodic Wavetrains for the Nonlinear Klein-Gordon Equation

Christopher K. R. T. Jones, Robert Marangell, Peter D. Miller +1

This paper is a detailed and self-contained study of the stability properties of periodic traveling wave solutions of the nonlinear Klein-Gordon equation $u_{tt}-u_{xx}+V^{\prime }(u)=0$, w…