01212nam a2200349 i 4500991000232269707536040120s2003 de 001 0 eng d3540202463b12587795-39ule_instDip.to Matematicaeng515.724622AMS 47A10AMS 47A55AMS 47A56LC QA3.L28Gil', Mikhail Iosifovich150731Operator functions and localization of spectra /Michael I. Gil'Berlin :Springer,2003vii, 252 p. ;24 cmLecture notes in mathematics,0075-8434 ;1830Includes indexLinear operatorsOperator theoryResolvents (Mathematics)Perturbation (Mathematics)Spectral theory (Mathematics).b1258779521-09-0620-01-04991000232269707536LE013 47A GIL11 (2003)12013000143934le013pE43.20-l- 0180180.i1310575913-02-04Operator functions and localization of spectra253263UNISALENTOle01320-01-04ma -engde 01