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Mathematics > Analysis of PDEs

arXiv:1804.07992 (math)
[Submitted on 21 Apr 2018]

Title:Pullback dynamics of 2D incompressible non-autonomous Navier-Stokes equation on Lipschitz-like domain

Authors:Xin-Guang Yang, Yuming Qin, To Fu Ma, Yongjin Lu
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Abstract:This paper concerns the tempered pullback dynamics of 2D incompressible non-autonomous Navier-Stokes equation with non-homogeneous boundary condition on Lipschitz-like domain. With the presence of a time-dependent external force f(t) which only needs to be pullback translation bounded, we establish the existence of a minimal pullback attractor with respect to a universe of tempered sets for the corresponding non-autonomous dynamical system. We then give estimate on the finite fractal dimension of the attractor based on trace formula. Under the additional assumption that the external force is the sum of a stationary force and a non-autonomous perturbation, we also prove the upper semi-continuity of the attractors as the non-autonomous perturbation vanishes. Lastly, we also investigate the regularity of these attractors when smoother initial data is given. Our results are new even in the case of smooth domains.
Subjects: Analysis of PDEs (math.AP); Dynamical Systems (math.DS)
MSC classes: 35B40, 35B41, 35Q30, 76D03, 76D05
Cite as: arXiv:1804.07992 [math.AP]
  (or arXiv:1804.07992v1 [math.AP] for this version)
  https://doi.org/10.48550/arXiv.1804.07992

Submission history

From: Yongjin Lu [view email]
[v1] Sat, 21 Apr 2018 16:10:53 UTC (41 KB)
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