Global attractor for weakly damped nonlinear parametric Klein-Gordon Schr{ö}dinger system
We consider a damped forced nonlinear Klein-Gordon Schr\''{o}dinger (KGS) system known as the parametric KGS system with Yukawa coupling. We prove the regularity of the global attractor for this infinite-dimensional dynamical system, i.e. that the global attractor is included into a smaller Sobolev space than the energy space. We prove that this global attractor has finite fractal dimension, without any assumption on the decay of the forcing terms.
math.AP↗