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Title: $N$-widths for singularly perturbed problems (English)
Author: Stynes, Martin
Author: Kellogg, R. Bruce
Language: English
Journal: Mathematica Bohemica
ISSN: 0862-7959 (print)
ISSN: 2464-7136 (online)
Volume: 127
Issue: 2
Year: 2002
Pages: 343-352
Summary lang: English
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Category: math
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Summary: Kolmogorov $N$-widths are an approximation theory concept that, for a given problem, yields information about the optimal rate of convergence attainable by any numerical method applied to that problem. We survey sharp bounds recently obtained for the $N$-widths of certain singularly perturbed convection-diffusion and reaction-diffusion boundary value problems. (English)
Keyword: $N$-width
Keyword: singularly perturbed
Keyword: differential equation
Keyword: boundary value problem
Keyword: convection-diffusion
Keyword: reaction-diffusion
MSC: 34E15
MSC: 35B25
MSC: 35K57
MSC: 41A46
MSC: 65L10
MSC: 65L20
MSC: 65N15
idZBL: Zbl 1005.41009
idMR: MR1981538
DOI: 10.21136/MB.2002.134155
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Date available: 2012-10-05T13:07:41Z
Last updated: 2020-07-29
Stable URL: http://hdl.handle.net/10338.dmlcz/134155
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