00947nam a2200289 i 450099100114220970753620020507111835.0970308s1966 de ||| | eng b10179550-39ule_instLE00642848ExLDip.to Fisicaita510.46510.47517.7QA320Kato, Tosio40573Perturbation theory for linear operators /T. KatoBerlin :Springer,1966xix, 592 p. ;24 cm.Linear operatorsPerturbation (Mathematics).b1017955021-09-0627-06-02991001142209707536LE006 510.46+510.47 KAT12006000022477le006-E0.00-l- 00000.i1022031827-06-02Perturbation theory for linear operators82699UNISALENTOle00601-01-97ma -engde 01