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全空间中具时间依赖参数的p-Laplacian方程的拉回吸引子

Pullback attractor of p-Laplacian equation with time-dependent parameters on the entire space
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摘要 本文考虑无界域上 p-laplacian 方程 u t- div (ε(t) ▽u p-2 ▽u)+f(x,u)=g(x,t) 的长时动力学行为. 在外力项满足积分条件下,本文利用尾部估计方法证明了方程对应的过程是渐近紧的,从而得到其拉回吸引子的存在性. Long time dynamical behavior of the p-laplacian equation u t-div(ε(t)▽u p-2▽u)+f(x,u)=g(x,t)is considered.We prove that the process associated with the equation is asymptotically compact under the Condition that the forcing term satisfies certain integral condition.By using the tail estimates of solution,the existence of pullback attractor is proved as well.
作者 王怡 马巧珍 WANG Yi;MA Qiao-Zhen(College of Mathematics and Statistics,Normal University,Lanzhou 730070,China)
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2020年第1期43-48,共6页 Journal of Sichuan University(Natural Science Edition)
基金 国家自然科学基金(11561064,11961059)
关键词 无界域 P-LAPLACIAN方程 拉回吸引子 Unbounded domain p-Laplacian equation Pullback attractor
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