期刊
COMPUTERS & MATHEMATICS WITH APPLICATIONS
卷 46, 期 10-11, 页码 1683-1690出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0898-1221(03)90202-1
关键词
Fokker-Planck equation; relative entropy; logarithmic Sobolev inequality; exponential decay rate
In this paper, we study the large time behavior of a fully implicit semidiscretization (in time) of parabolic Fokker-Planck type equations. Using logarithmic Sobolev inequalities exponential decay of the relative entropy (w.r.t. the steady state) is proved which yields convergence of the discrete scheme towards the unique steady state. The exponential decay rate recovers as Deltat down arrow 0 the decay rate of the original Fokker-Planck type equations. (C) 2003 Elsevier Ltd. All rights reserved.
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