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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An Extension of Mercer's Theorem via Pontryagin Spaces

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Author(s):
Menegatto, V. A. [1] ; Oliveira, C. P. [2]
Total Authors: 2
Affiliation:
[1] ICMC USP, Dept Matemat, BR-13560970 Sao Carlos, SP - Brazil
[2] ICE UNIFEI, Dept Matemat & Comp, BR-37500903 Itajuba, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Integral Equations and Operator Theory; v. 74, n. 3, p. 363-375, NOV 2012.
Web of Science Citations: 0
Abstract

We extend Mercer's theorem to a composition of the form RS, in which R and S are integral operators acting on a space L-2(X) generated by a locally finite measure space (X, nu). The operator R is compact and positive while S is continuous and having spectral decomposition based on well distributed eigenvalues. The proof is based on a Pontryagin space structure for L-2(X) constructed via the operators R and S themselves. (AU)

FAPESP's process: 10/19734-6 - Analysis of integral operators generated by positive definite kernels
Grantee:Valdir Antonio Menegatto
Support Opportunities: Regular Research Grants