LEADER 00909nam0-22002891i-450-
001 990000995910403321
035   $a000099591
035   $aFED01000099591
035   $a(Aleph)000099591FED01
035   $a000099591
100   $a20000920d1965----km-y0itay50------ba
101 0 $aeng
200 1 $aPerturbation of Spectra in Hilbert Space$eProceedings of the Summer Seminar, Boulder, Colorado, 1969$fby Kurt O. Friedrichs
210   $aProvidence$cAmerican Mathematical Society$d1965
225 1 $aLectures in applied mathematics$v3
610 0 $aAnalisi funzionale
610 0 $aAlgebre astratte
676   $a517.00//517.36
700  1$aFriedrichs,$bKurt Otto$040614
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990000995910403321
952   $a14A-043$b4561$fFI1
959   $aFI1
996   $aPerturbation of spectra in Hilbert space$981599
997   $aUNINA
DB    $aING01