Communications of the
Korean Mathematical Society CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024
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Commun. Korean Math. Soc. 1995; 10(4): 849-854

Printed December 1, 1995

Copyright © The Korean Mathematical Society.

Singularity of a coefficient matrix

Joonsook Lee

Ewha womans University

Abstract

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The interpolation of scattered data with radial basis functions is known for its good fitting. But if data get large, the coefficient matrix becomes almost singular. We introduce different knots and nodes to improve condition number of coefficient matrix. The singulaity of new coefficient matrix is investigated here.

Keywords: Approximation, interpolation, data-fitting

MSC numbers: 41A45, 41A20

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