2008 | OriginalPaper | Chapter
A Generalization to Ordered Groups of a Kreĭn Theorem
Authors : Ramón Bruzual, Marisela Domínguez
Published in: Recent Advances in Matrix and Operator Theory
Publisher: Birkhäuser Basel
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We give an extension result for positive definite operator-valued Toeplitz-Krein-Cotlar triplets defined on an interval of an ordered group. When the triplet is positive definite and measurable we give a representation result.