01231nam0-2200373li-450-99000026778020331620090529125632.00026778USA010026778(ALEPH)000026778USA01002677819940221d1962----km-y0itay50------ba20001109d--------km-y0itay0103----ba||||||||001yySpectral TheoryEdgar Raymond LorchNew YorkOxford university press1962158 p.ill.21 cmUniversity texts in mathematical sciences0012001University texts in mathematical sciencesTeoria spettrale515.722LORCH,Edgar Raymond48889Sistema bibliotecario di Ateneo dell' Università di SalernosalbcRICA990000267780203316515.722 LOR (A)5836/CBS515.72200222033BKSCI1994022120001110USA01171620020403USA011635PATRY9020040406USA011619RSIAV79020090529USA011256RSIAV79020090529USA011256Spectral Theory339390UNISA