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Weak Mean Random Attractor of Reversible Selkov Lattice Systems Driven By Locally Lipschitz Lévy Noises

Guofu Li,Xiulan Yang,Liguang Zhou,Yan Wang

2024 · DOI: 10.61383/ejam.20242165
2 Citations

Abstract

This paper is concerned with weak pullback mean random attractor of reversible Selkov lattice systems defined on the entire integer set Z\mathbb{Z} driven by locally Lipschitz Lévy noises. Firstly, we formulate the stochastic lattice equations to an abstract system defined in the non-concrete space ℓ2×ℓ2\ell^2\times\ell^2 of square-summable sequences. Secondly, we establish the global well-posedness of the systems with locally Lipschitz diffusion terms. Under certain conditions, we show that the long-time dynamics can be captured by a weakly compact and weakly attracting mean random attractor in the Bochner space L2(Ω,ℓ2×ℓ2)L^2(\Omega,\ell^2\times\ell^2). To overcome the difficulty caused by the drift and diffusion terms, we adopt a stopping time technique to prove the convergence of solutions in probability. The mean random dynamical systems theory proposed by Wang (J. Differ. Equ., 31:2177-2204, 2019) is used to deal with the difficulty caused by the nonlinear noise.