01205nam a2200313 i 450099100102629970753620020507105306.0970307s1975 us ||| | eng b10163256-39ule_instLE00640936ExLDip.to Fisicaita510.46510.47515'.7222QA379Levitan, Boris Moiseevich48792Introduction to spectral theory :selfadjoint ordinary differential operators /Levitan B. Moiseevich and I.S. SargsjanProvidence :American Mathematical Society,1975xi, 525 p. ;24 cm.Differential operatorsSelfadjoint operatorsSpectral theory (Mathematics)Sargsjan, Ishkhan Saribekovichauthorhttp://id.loc.gov/vocabulary/relators/aut350280.b1016325621-09-0627-06-02991001026299707536LE006 510.46+510.47 LEV12006000022248le006-E0.00-l- 00000.i1019778327-06-02Introduction to spectral theory1444895UNISALENTOle00601-01-97ma -engus 01