01021nam0-22003251i-450 99000254928040332120201012105454.035401666998000254928FED01000254928(Aleph)000254928FED0100025492820000920d1987----km-y0itay50------baengDEPartial differential equationsan introduction to a general theory of linear boundary value problemsA. A. Dezintranslated from the Russian R. P. BoasBerlinSpringer Verlag1987163 p.24 cmEquazioni differenziali alle derivate parzialiEquazioni differenziali ed integrali515.353Dezin,Aleksei A.41475Boas,Ralph P.ITUNINARICAUNIMARCBK990002549280403321MX-B-65827MASMASPartial Differential Equations348788UNINAING01