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https://doi.org/10.1002/cpa.21382

has been cited by the following article:

• TITLE: Global Existence and Large Time Asymptotic Behavior of Strong Solution to the Cauchy Problem of 2D Density-Dependent Boussinesq Equations of Korteweg Type

  AUTHORS: Qi Zhang

  KEYWORDS: Incompressible Boussinesq Equation, Korteweg Type, Global Strong Solutions, Large Time Behavior, Vacuum

  JOURNAL NAME: Advances in Pure Mathematics, Vol.11 No.4, April 29, 2021

  ABSTRACT: In this paper, we study the Cauchy problem of the density-dependent Boussinesq equations of Korteweg type on the whole space with a vacuum. It is proved that there exists a unique strong solution for the two-dimensional Cauchy problem established that the initial density and the initial temperature decay not extremely slow. Particularly, it is allowed to be arbitrarily large for the initial data and vacuum states for the initial density, even including the compact support. Moreover, when the density depends on the Korteweg term with the viscosity coefficient and capillary coefficient, we obtain a consistent priority estimate by the energy method, and extend the local strong solutions to the global strong solutions. Finally, when the pressure and external force are not affected, we deform the fluid models of Korteweg type, we can obtain the large time decay rates of the gradients of velocity, temperature and pressure.