期刊
JOURNAL OF FUNCTIONAL ANALYSIS
卷 172, 期 1, 页码 1-18出版社
ACADEMIC PRESS INC
DOI: 10.1006/jfan.1999.3550
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We present a new derivation of upper bounds for the decay of higher order derivatives of solutions to the unforced Navier-Stokes equations in R-n. The method, based on so-called Gevrey estimates, also yields explicit bounds on the growth of the radius of analyticity of the solution in time. Moreover, under the assumption that the Navier-Stokes solution stays sufficiently close to a solution of the heat equation in the L-2 norm-a result known to be true for a large class of initial data-lower bounds on the decay of higher order derivatives can be obtained. (C) 2000 Academic Press.
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