2 papers
nlin.PS2001
Nonlinear parametric instability in double-well lattices
Jaroslav Riedel, Eva Majernikova, Boris A. Malomed
A possibility of a nonlinear resonant instability of uniform oscillations in dynamical lattices with harmonic intersite coupling and onsite nonlinearity is predicted. Numerical sim…
cond-mat.dis-nn2000
Kink in a periodically modulated disordered system
Eva Majernikova, Jaroslav Riedel, Boris A. Malomed
We consider a dc-driven damped sine-Gordon model with a small nonlinear spatial-disorder term, onto which a sinusoidal modulation is superimposed. It describes, e.g., a weakly diso…