01026nam0-2200361---450-99000845392040332120070119122023.03-540-39942-9000845392FED01000845392(Aleph)000845392FED0100084539220070119d2007----km-y0itay50------baengDEa---a---001yyStable approximate evaluation of unbounded operatorsC. W. GroetschBerlinSpringerc2007x, 127 p.24 cmLecture notes in mathematics1894Operatori lineariAnalisi numerica in spazi astratti515.721itaGroetsch,Charles W.27779ITUNINARICAUNIMARCBK990008453920403321C-20-(189421761MA1MA147A5265J20Stable approximate evaluation of unbounded operators230552UNINA