Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dynamics of Non-autonomous Stochastic Semi-linear Degenerate Parabolic Equations with Nonlinear Noise

Version 1 : Received: 20 June 2023 / Approved: 20 June 2023 / Online: 20 June 2023 (11:02:50 CEST)

A peer-reviewed article of this Preprint also exists.

Liu, X.; Li, Y. Dynamics of Non-Autonomous Stochastic Semi-Linear Degenerate Parabolic Equations with Nonlinear Noise. Mathematics 2023, 11, 3158. Liu, X.; Li, Y. Dynamics of Non-Autonomous Stochastic Semi-Linear Degenerate Parabolic Equations with Nonlinear Noise. Mathematics 2023, 11, 3158.

Abstract

At present paper, we aim to study the long-time behavior of a stochastic semi-linear degenerate parabolic equation on bounded or unbounded domain and driven by a nonlinear noise and defined. Since the theory of pathwise random dynamical systems can not be applied directly to the equation with nonlinear noise, first, we establish the existence of weak pullback mean random attractors for the equation by applying the theory of mean-square random dynamical systems; then, we prove the existence of (pathwise) pullback random attractors for the Wong-Zakai approximate system of the equation. In addition, we establish the upper semicontinuity of pullback random attractors for the Wong-Zakai approximate system of the equation under consideration driven by a linear multiplicative noise.

Keywords

Stochastic degenerate parabolic equation; Nonlinear noise; Pullback random attractor; Wong-Zakai approximation; Upper semicontinuity

Subject

Physical Sciences, Mathematical Physics

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