00961nam0-22003251i-450-9900010250004033213-540-58661-X000102500FED01000102500(Aleph)000102500FED0100010250020000920d1995----km-y0itay50------baengPerturbation Theory for Linear OperatorsTosio KatoReprint of the 1980 ed.Berlin [etc.]Springer-Verlag1995Originally published as Vol. 132 of the "Grundlehren der mathematischen Wissenschaften".Analisi funzionaleAlgebre astratte517.00517.36Kato,Tosio40573ITUNINARICAUNIMARCBK99000102500040332114A-053.00220262FI1FI1Perturbation theory for linear operators82699UNINAING01