RATIONAL MOMENT PROBLEMS FOR COMPACT-SETS

Authors
Citation
Jd. Chandler, RATIONAL MOMENT PROBLEMS FOR COMPACT-SETS, Journal of approximation theory, 79(1), 1994, pp. 72-88
Citations number
17
Categorie Soggetti
Mathematics, Pure",Mathematics
ISSN journal
00219045
Volume
79
Issue
1
Year of publication
1994
Pages
72 - 88
Database
ISI
SICI code
0021-9045(1994)79:1<72:RMPFC>2.0.ZU;2-P
Abstract
The following ''rational'' moment problem is discussed. Given distinct real numbers lambda(1), lambda(2),..., lambda(p) (the ''poles'' of th e problem), real numbers c(0) and c(j)((i)) (j = 1, 2, 3,...; i = 1, 2 ,..., p), and a non-empty compact subset K of (- infinity, + infinity) , find necessary and sufficient conditions that there exist a non-nega tive Borel measure mu, supported on K, such that c(0) = integral(K) d mu(t) and c(j)((i)) = integral(K)(t - lambda(i))(-j) d mu(t) for j = 1 , 2, 3,... and i = 1, 2,..., p. (C) 1994 Academic Press, Inc.