00941nam0-2200337---450-99000860874040332120080131125129.00-521-86629-4000860874FED01000860874(Aleph)000860874FED0100086087420080131d2007----km-y0itay50------baengUSa-------001yyLinear operators and their spectraE. BrianCambridgeCambridge university pressc2007xii, 451 p.24 cmCambridge studies in advanced mathematics106Operatori lineari515.7222Davies,Edward Brian51945ITUNINARICAUNIMARCBK990008608740403321C-43-(10622070MA1MA147AXXLinear operators and their spectra711960UNINA