摘要

In this paper, using a new method (or technique) called "Asymptotic Contractive Semigroup Method" (see Theorem 2.3) we prove the existence of global attractor for the nonclassical diffusion equations in H-1(R-n). The nonlinearity satisfies the arbitrary order polynomial growth conditions and the forcing term g only belongs to H-1(R-n). The results obtained essentially improve and complement in some previously published papers.