On the extensions of suboperators

DOI10.1007/BF02109791zbMath0879.47004OpenAlexW2091082684MaRDI QIDQ1925025

Vilmos Prokaj

Publication date: 27 October 1996

Published in: Periodica Mathematica Hungarica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf02109791

zbMATH Keywords

projectionpositive extensionscompact extensionssuboperator of smallest possible norm

Mathematics Subject Classification ID

Dilations, extensions, compressions of linear operators (47A20)

Cites Work

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• Characterization of subprojection suboperators
• Restrictions of partial isometries
• Extremal positive and self-adjoint extensions of suboperators