LEADER 01032nam--2200313---450- 001 990003260500203316 005 20090529162849.0 035 $a000326050 035 $aUSA01000326050 035 $a(ALEPH)000326050USA01 035 $a000326050 100 $a20090529d1965----km-y0itay50------ba 101 $aeng 102 $aIL 105 $ay---||||001yy 200 1 $aDirect methods of qualitative spectral analysis of singular differential operators$fI. M. Glazman$gtranslated from russian IPST staff 210 $aJersusalem$cIsrael program scientific translations$d1965 215 $aIX, 234 p.$d24 cm 606 0 $aOperatori differenziali 676 $a515.724 700 1$aGLAZMAN,$bI.M.$0604563 801 0$aIT$bsalbc$gISBD 912 $a990003260500203316 951 $a515.724 GLA$b6870/CBS$c515.724$d00222026 959 $aBK 969 $aSCI 979 $aRSIAV7$b90$c20090529$lUSA01$h1628 996 $aDirect methods of qualitative spectral analysis of singular differential operators$91119073 997 $aUNISA