Extension of locally defined indefinite functions on ordered groups

DOI10.1007/S00020-003-1223-2zbMath1073.47023OpenAlexW1978223389MaRDI QIDQ1884740

Ramón Bruzual, Marisela Domínguez

Publication date: 5 November 2004

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00020-003-1223-2

zbMATH Keywords

operator valued functions\(k\)-indefinite functionsArchimedian groupsindefinite extension propertyoperators in Krein spaces

Mathematics Subject Classification ID

Groups and semigroups of linear operators (47D03) Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Linear operators on spaces with an indefinite metric (47B50)

Related Items (2)

On extensions of indefinite functions defined on a rectangle ⋮ Extending positive definiteness

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