01065nmm a2200301 i 4500991000566709707536cr nn 008mamaa070420s2007 de j eng d9783540399438b13876831-39ule_instDip.to Matematicaeng512.55622AMS 47A58LC QA3.L28Groetsch, Charles W.27779Stable approximate evaluation of unbounded operators[e-book] /Charles W. GroetschBerlin :Springer,c2007v.: digitalLecture notes in mathematics,0075-8434 ;1894Numerical analysisOperator theorySpringer e-bookshttp://dx.doi.org/10.1007/3-540-39942-9An electronic book accessible through the World Wide Web.b1387683103-03-2202-02-10991000566709707536Stable approximate evaluation of unbounded operators230552UNISALENTOle01302-02-10m@ -engde 00