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arXiv 1404.0488math.DS
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具有确定性非自治项的随机格点动力系统拉回吸引子存在的充分判据

Sufficient Criteria for Existence of Pullback Attractors for Stochastic Lattice Dynamical Systems with Deterministic Non-autonomous Terms

Anhui Gu, Yangrong Li

摘要:

研究了由具有非自治确定性项的随机格微分方程生成的非自治动力系统的拉回吸引子。首先建立了具有非自治确定性和随机强迫项的格点动力系统存在拉回吸引子的充分条件。作为抽象理论的应用,我们证明了具有确定性非自治强迫项和乘性白噪声的一阶格点动力系统存在唯一的拉回吸引子.我们的结果恢复了已有的关于具有自治项或白噪声的格点动力系统的拉回吸引子存在性的结果。

英文摘要:

We consider the pullback attractors for non-autonomous dynamical systems generated by stochastic lattice differential equations with non-autonomous deterministic terms. We first establish a sufficient condition for existence of pullback attractors of lattice dynamical systems with both non-autonomous deterministic and random forcing terms. As an application of the abstract theory, we prove the existence of a unique pullback attractor for the first-order lattice dynamical systems with both deterministic non-autonomous forcing terms and multiplicative white noise. Our results recover many existing ones on the existences of pullback attractors for lattice dynamical systems with autonomous terms or white noises.

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