01228nam2-2200349---450-99000334226020331620091030151338.00-444-86277-3000334226USA01000334226(ALEPH)000334226USA0100033422620091030d1981----km-y0itay50------baengNL||||||||001yySpectral theory of differential operatorsproceedings of the conference held at the University of Alabama in Birmingham, Alabama, U.S.A., march 26-28, 1981edited by Ian W. Knowles...[et al.]Amsterdam [etc.]North-Holland publishingcopyr. 1981XV, 384 p.24 cmNorth-Holland mathematics studies550010003342222001North-Holland mathematics studies55Operatori differenzialiCongressiBirmingham1981515.7242KNOWLES,Ian M.ITsalbcISBD990003342260203316510 NMS (55)6441/CBS51000111519BKSCIRSIAV79020091030USA011513Spectral theory of differential operators240403UNISA