三维广义Boussinesq方程组的强时间周期解
Strong Time-Periodic Solutions to the Three-Dimensional Generalized Boussinesq Equations
DOI: 10.12677/pm.2026.168176, PDF,    科研立项经费支持
作者: 范风华:华北水利水电大学数学与统计学院,河南 郑州;河南省科学院数学研究所,河南 郑州;李延硕*:河南省科学院数学研究所,河南 郑州
关键词: 广义Boussinesq方程组时间周期解存在性Generalized Boussinesq System Time-Periodic Solutions Existence
摘要: 本文研究了三维光滑有界域上广义Boussinesq方程组的时间周期问题。首先,对原方程组重整化,并引入相应的函数空间。然后,借助算子半群理论、实插值理论和压缩映射原理,证明了定义在单个周期区间上强解的存在唯一性。最后,基于线性重整化系统周期解的存在唯一性和周期延拓,证明了原非线性Boussinesq方程组强时间周期解的存在唯一性。
Abstract: This paper investigates the time-periodic problem for the generalized Boussinesq equations in three-dimensional smooth bounded domains. First, the original system is reformulated and the corresponding function spaces are introduced. Then, by employing operator semigroup theory, real interpolation theory, and the contraction mapping principle, the existence and uniqueness of strong solutions on a single period interval are established. Finally, based on the existence and uniqueness of periodic solutions to the linearized reformulated system and a periodic extension argument, the existence and uniqueness of strong time-periodic solutions to the original nonlinear Boussinesq equations are proved.
文章引用:范风华, 李延硕. 三维广义Boussinesq方程组的强时间周期解[J]. 理论数学, 2026, 16(8): 12-23. https://doi.org/10.12677/pm.2026.168176

参考文献

[1] Liu, M., Wang, J., Jiang, H. and Zhang, Y. (2025) The Dynamical Stability and Instability of Rayleigh-Bénard Problem for Non-Newtonian Fluids with Power Law Type. Applicable Analysis, 104, 1901-1924.
https://doi.org/10.1080/00036811.2024.2438386
[2] Wei, M., Lin, K. and Sun, L. (2022) Shear Thickening Fluids and Their Applications. Materials & Design, 216, Article 110570.
https://doi.org/10.1016/j.matdes.2022.110570
[3] Chandrasekhar, S. (1961) Hydrodynamic and Hydromagnetic Stability. Oxford University Press.
[4] Climent-Ezquerra, B., Guillén-González, F. and Rojas-Medar, M.A. (2007) Time-Periodic Solutions for a Generalized Boussinesq Model with Neumann Boundary Conditions for Temperature. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 463, 2153-2164.
https://doi.org/10.1098/rspa.2007.1867
[5] Van, N.T., Xuan, P.T. and Thuy, T.V. (2024) Periodic Solutions for Boussinesq Systems in Weak-Morrey Spaces. Journal of Mathematical Analysis and Applications, 537, Article 128255.
https://doi.org/10.1016/j.jmaa.2024.128255
[6] Nguyen, T.H., Pham, T.X., Vu, T.N.H. and Le, T.S. (2022) Existence and Stability of Periodic and Almost Periodic Solutions to the Boussinesq System in Unbounded Domains. Acta Mathematica Scientia, 42, 1875-1901.
https://doi.org/10.1007/s10473-022-0510-4
[7] Nakatsuka, T. (2026) Existence and Uniqueness of Time-Periodic Solutions to the Oberbeck-Boussinesq System. Nonlinear Analysis: Real World Applications, 88, Article 104461.
https://doi.org/10.1016/j.nonrwa.2025.104461
[8] Kyed, M. (2012) Time-Periodic Solutions to the Navier-Stokes Equations. Habilitation Thesis, Technische Universtit at Darmstads.
[9] Hieber, M., Mahalov, A. and Takada, R. (2019) Time Periodic and Almost Time Periodic Solutions to Rotating Stratified Fluids Subject to Large Forces. Journal of Differential Equations, 266, 977-1002.
https://doi.org/10.1016/j.jde.2018.07.067
[10] Yamazaki, M. (2000) The Navier-Stokes Equations in the Weak-Space with Time-Dependent External Force. Mathematische Annalen, 317, 635-675.
https://doi.org/10.1007/pl00004418
[11] Villamizar-Roa, E.J., Rodríguez-Bellido, M.Á. and Rojas-Medar, M.A. (2010) Periodic Solutions in Unbounded Domains for the Boussinesq System. Acta Mathematica Sinica, English Series, 26, 837-862.
https://doi.org/10.1007/s10114-010-7360-z
[12] Nakao, K. (2020) On Time-Periodic Solutions to the Boussinesq Equations in Exterior Domains. Journal of Mathematical Analysis and Applications, 482, Article 123537.
https://doi.org/10.1016/j.jmaa.2019.123537
[13] Wu, Q. and Wang, C. (2025) Existence of Regular Time-Periodic Solutions for a Class of Non-Newtonian Double-Diffusive Convection System. Applications of Mathematics, 70, 387-411.
https://doi.org/10.21136/am.2025.0268-24
[14] Galdi, G.P. and Grisanti, C.R. (2016) Womersley Flow of Generalized Newtonian Liquid. Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 146, 671-692.
https://doi.org/10.1017/s0308210515000736
[15] Abbatiello, A. and Maremonti, P. (2019) Existence of Regular Time-Periodic Solutions to Shear-Thinning Fluids. Journal of Mathematical Fluid Mechanics, 21, Article No. 29.
https://doi.org/10.1007/s00021-019-0435-4
[16] Abbatiello, A. (2021) Time-Periodic Weak Solutions to Incompressible Generalized Newtonian Fluids. Journal of Mathematical Fluid Mechanics, 23, Article No. 63.
https://doi.org/10.1007/s00021-021-00576-0
[17] Brandt, F. and Hieber, M. (2023) Strong Periodic Solutions to Quasilinear Parabolic Equations: An Approach by the Da Prato-Grisvard Theorem. Bulletin of the London Mathematical Society, 55, 1971-1993.
https://doi.org/10.1112/blms.12831
[18] Adams, R. and Fournier, J. (2003) Sobolev Spaces. Second edition. Pure and Applied Mathematics, Vol. 140, Elsevier.
[19] Prüss, J., Simonett, G. and Wilke, M. (2018) Critical Spaces for Quasilinear Parabolic Evolution Equations and Applications. Journal of Differential Equations, 264, 2028-2074.
https://doi.org/10.1016/j.jde.2017.10.010
[20] Giga, Y. (1981) Analyticity of the Semigroup Generated by the Stokes Operator In Spaces. Mathematische Zeitschrift, 178, 297-329.
https://doi.org/10.1007/bf01214869