00952nam0-22002891i-450-990000999290403321000099929FED01000099929(Aleph)000099929FED0100009992920000920d1965----km-y0itay50------baengDirect Methods of Qualitative Spectral Analysis of Singular Differential OperatorsI.M. Glazmantranslated from Russian by IPST StaffLondonOldbourne1965Israel Program for Scientific TranslationsAnalisi funzionaleAlgebre astratte517.00//517.36Glazman,Izrail Markovich26244ITUNINARICAUNIMARCBK99000099929040332114A-0495159FI1FI1Direct Methods of Qualitative Spectral Analysis of Singular Differential Operators354287UNINAING01