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008 970308s1966    de            ||| | eng  
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040   $aDip.to Fisica$bita
084   $a510.46
084   $a510.47
084   $a517.7
084   $aQA320
100 1 $aKato, Tosio$040573
245 10$aPerturbation theory for linear operators /$cT. Kato
260   $aBerlin :$bSpringer,$c1966
300   $axix, 592 p. ;$c24 cm.
650  4$aLinear operators
650  4$aPerturbation (Mathematics)
907   $a.b10179550$b21-09-06$c27-06-02
912   $a991001142209707536
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996   $aPerturbation theory for linear operators$982699
997   $aUNISALENTO
998   $ale006$b01-01-97$cm$da  $e-$feng$gde $h0$i1