刘文婧 姜金平 熊坤翠
摘 要:考虑带非线性阻尼项cuβu的g-Navier-Stokes方程解的长时间行为,通过验证完备度量空间X上的一个连续半群{S(t)}t≥0存在有界吸收集BX和{S(t)}t≥0的渐近紧性,得出全局吸引子存在。
关键词:非线性阻尼;g-Navier-Stokes方程;全局吸引子;吸收集;渐近紧
中图分类号:O175.29
文献标志码:A
4 结论
本文验证了带非线性阻尼项cuβu的g-Navier-Stokes方程存在全局吸引子,进一步完善了2Dg-Navier-Stokes系统理论,有利于该系统指数吸引子的研究,同时期待本文的方法和结论能对3Dg-Navier-Stokes系统的研究有帮助。
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(责任编辑:于慧梅)
The Global Attractor of g-Navier-Stokes Equations with Dampness
LIU Wenjing, JIANG Jinping*, XIONG Kuncui
(College of Mathematics and Computer Science, Yan an University, Yan an 716000, China)
Abstract:
The long time behaviors of g-Navier-Stokes equations with dampness were investigated. The bounded absorbing set of a continuous semigroup S{t}t≥0in a complete metric space X is verified and the asymptotic compactness of the semigroup S{t}t≥0was proved,hence the existence of the global attractor for the equations was proved.
Key words:
nolinear dampness; g-Navier-Stokes equations; global attractor; bounded absorbing set; asymptotic compact
收稿日期:2020-09-25
基金项目:陕西省自然科学基础研究计划资助项目(2018JM1042)
作者简介:刘文婧(1994—),女,在读硕士,研究方向:无穷维动力系统,E-mail:1357850443@qq.com.
通讯作者:姜金平,E-mail:yadxjjp@163.com.