Article Contents
Article Contents

# Global regularity and asymptotic behavior of modified Navier-Stokes equations with fractional dissipation

• This paper is concerned with the Cauchy problem of three-dimensional modified Navier-Stokes equations with fractional dissipation $\nu (-\Delta)^{\alpha} u$. The results are three-fold. We first prove the global existence of weak solutions for $0<\alpha\leq1$ and global smooth solution for $\frac{3}{4}<\alpha\leq1.$ Second, we obtain the optimal decay rates of both weak solutions and the higher-order derivative of the smooth solution. Finally, we investigate the asymptotic stability of the large solution to the system under large initial and external forcing perturbation.
Mathematics Subject Classification: 35Q30, 76D05.

 Citation:

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