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广西师范大学学报(自然科学版) ›› 2020, Vol. 38 ›› Issue (1): 41-46.doi: 10.16088/j.issn.1001-6600.2020.01.005
佘连兵*, 高云龙
SHE Lianbing*, GAO Yunlong
摘要: 本文对无界域上非自治Navier-Stokes方程的后向紧动力学进行了研究。在时间依赖的外驱动力是弱后向缓增的假设下, 证明了系统在一个能量空间上存在一个增的有界的拉回吸收集;为了克服无界域上没有紧Sobolev嵌入的困难, 采用了Ball能量方程的方法证明了系统的后向渐近紧性;最后证明了无界域上非自治Navier-Stokes方程在能量空间上存在一个后向紧的拉回吸引子。
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