A study on multivariate interpolation by increasingly flat kernel functions

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초록

In this paper, we improve upon some observations made in recent papers on the subject of increasingly flat interpolation. We shall establish that the corresponding Lagrange functions converge both for a finite set of functions (collocation matrix) and also for kernels (Fredholm matrix). In our analysis, we use a finite Maclaurin expansion of a multivariate function with remainder and some additional matrix theoretic facts. (C) 2015 Elsevier Inc. All rights reserved.

키워드

Collocation matrixWronskianMultivariate kernel interpolationCauchy-Binet formulaRadial basis functionl'Hospital's ruleRADIAL BASIS FUNCTIONCONVERGENCELIMIT
제목
A study on multivariate interpolation by increasingly flat kernel functions
저자
Lee, Yeon JuMicchelli, Charles A.Yoon, Jungho
DOI
10.1016/j.jmaa.2015.02.006
발행일
2015-07-01
유형
Article
저널명
Journal of Mathematical Analysis and Applications
427
1
페이지
74 ~ 87