01071nam0-2200361li-450 99000017334020331620180312154753.00-19-853570-80017334USA010017334(ALEPH)000017334USA01001733420001109d1987----km-y0itay0103----baengGBSpectral theory and differential operatorsD. E. Edmunds, W. D. EvansOxfordClarendon Presscopyr. 1987operatori differenzialiteoria spettrale515.724 2Edmunds,David E.441628Evans,W. D.Sistema bibliotecario di Ateneo dell' Università di SalernoRICA990000173340203316515.724 2 EDM0006677BKTEC1996020820001110USA01171220020403USA011625PATRY9020040406USA011613Spectral theory and differential operators1501659UNISA