00899nam0-22003011i-450-990001045590403321000104559FED01000104559(Aleph)000104559FED0100010455920000920d1969----km-y0itay50------baengSpectral Theory of Linear OperatorsAbram I. PlesnerTranslated from the Russian by Merlynd K. Nestell and Alan G. GibbsNew YorkFrederick Ungar1969Analisi funzionaleAlgebre astratte517.00//517.36Plesner,Abram I.49858Gibbs,Alan G.Nestell,MerlyndITUNINARICAUNIMARCBK99000104559040332114A-0887133FI1FI1Spectral Theory of Linear Operators341087UNINAING01