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Publication:3973602
zbMath0804.46070MaRDI QIDQ3973602
Publication date: 26 June 1992
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hahn-Banach theoremextension problemcompletely positive mapoperator systemscorona algebraseparable injectivitycounterexample for \(n\)-positive maps