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      帶阻尼項(xiàng)的g-Navier-Stokes方程的全局吸引子

      2021-07-06 05:16劉文婧姜金平熊坤翠

      劉文婧 姜金平 熊坤翠

      摘 要:考慮帶非線性阻尼項(xiàng)cuβu的g-Navier-Stokes方程解的長(zhǎng)時(shí)間行為,通過驗(yàn)證完備度量空間X上的一個(gè)連續(xù)半群{S(t)}t≥0存在有界吸收集BX和{S(t)}t≥0的漸近緊性,得出全局吸引子存在。

      關(guān)鍵詞:非線性阻尼;g-Navier-Stokes方程;全局吸引子;吸收集;漸近緊

      中圖分類號(hào):O175.29

      文獻(xiàn)標(biāo)志碼:A

      4 結(jié)論

      本文驗(yàn)證了帶非線性阻尼項(xiàng)cuβu的g-Navier-Stokes方程存在全局吸引子,進(jìn)一步完善了2Dg-Navier-Stokes系統(tǒng)理論,有利于該系統(tǒng)指數(shù)吸引子的研究,同時(shí)期待本文的方法和結(jié)論能對(duì)3Dg-Navier-Stokes系統(tǒng)的研究有幫助。

      參考文獻(xiàn):

      [1] ROH J. G-Navier-Stokes equations[D]. Sao Paulo: PH D Thesis, University of Minnesota, 2001.

      [2] ROH J. Dynamics of the g-Navier-Stokes equations[J]. Journal of Differential Equations, 2005, 211(2):452-484.

      [3] KWAK M, KWEAN H, ROH J. The dimension of attractor of the 2D g-Navier-Stokes equations[J]. Journal of Mathematical Analysis and Applications, 2006, 315(2):436-461.

      [4] ROH J. Convergence of the g-navier-stokes equations[J]. Journal of Differential Equations, 2009, 211(2):452-484.

      [5] JIANG J P, HOU Y R. Pullback attractor of 2D non-autonomous g-Navier-Stokes equations on some bounded domains[J]. Applied Mathematics and Mechanics, 2010,31(6):697-708.

      [6] JIANG J P, HOU Y R. The global attractor of g-Navier-Stokes equations with linear dampness on R2[J]. Applied Mathematics and Computation, 2009, 215(3):1068-1076.

      [7] JIANG J P, HOU Y R,WANG X X. Pullback attractor of 2D nonautonomous g-Navier-Stokes equations with linear dampness[J]. Applied Mathematics and Mechanics, 2011,32(2):151-166.

      [8] JIANG J P, WANG X X. Global attractor of 2D autonomous g-Navier-Stokes equations[J]. Applied Mathematics and Mechanics (English Edition), 2013, 34(3):385-394.

      [9] 姜金平, 王小霞, 侯延仁. 一類含線性阻尼的非線性自治g-Navier-Stokes系統(tǒng)解的漸近光滑效應(yīng)[J]. 西北大學(xué)學(xué)報(bào)(自然科學(xué)版), 2017,47(4):471-475.

      [10]MA Q F, WANG S, ZHONG C K. Necessary and sufficient conditions for the existence of global attractors for semigroups and applications[J]. Indiana University Mathematics Journal, 2002, 51(6): 1541-1570.

      [11]郭柏靈. 無窮維動(dòng)力系統(tǒng)[M]. 北京: 國防工業(yè)出版社, 2000.

      [12]TEMAM R. Infinite-dimensional dynamical systems in mechanics and physics volume[M]. New York: Spring-verlag, 1988.

      [13]JAMES C. Infinite-dimensional dynamical systems[M]. Cambridge: Cambridge University Press,2001.

      [14]SELL G R, YOU Y C. Dynamics of evolutionary equations[M].New York: Applied Mathematical Sciences, 2002.

      [15]馬紅鋁. 無窮維動(dòng)力系統(tǒng)全局吸引子問題的研究[D]. 南京: 南京大學(xué), 2018.

      [16]SONG X L, HOU Y R. Attractors for the three-dimensional incompressible Navier-Stokes equations with damping[J]. Discrete & Continuous Dynamical Systems, 2011, 31(1):239-252.

      (責(zé)任編輯: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

      基金項(xiàng)目:陜西省自然科學(xué)基礎(chǔ)研究計(jì)劃資助項(xiàng)目(2018JM1042)

      作者簡(jiǎn)介:劉文婧(1994—),女,在讀碩士,研究方向:無窮維動(dòng)力系統(tǒng),E-mail:1357850443@qq.com.

      通訊作者:姜金平,E-mail:yadxjjp@163.com.

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