Bulletin of the
Korean Mathematical Society
BKMS

ISSN(Print) 1015-8634 ISSN(Online) 2234-3016

Article

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Bull. Korean Math. Soc. 2007; 44(3): 547-567

Printed September 1, 2007

Copyright © The Korean Mathematical Society.

Temporal and spatial decay rates of Navier-Stokes solutions in exterior domains

Hyeong-Ohk Bae and Bum Ja Jin

Ajou University, Mokpo National University

Abstract

We obtain spatial-temporal decay rates of weak solutions of incompressible flows in exterior domains. When a domain has a boundary, the pressure term yields difficulties since we do not have enough information on the pressure term near the boundary. For our calculations we provide an idea which does not require any pressure information. We also estimated the spatial and temporal asymptotic behavior for strong solutions.

Keywords: Navier-Stokes equations, temporal decay, spatial decay, weak solution, strong solution, exterior domain

MSC numbers: 35Q30, 76D05