Perturbation Theory for Linear Operators By Dr. Tosio KatoEnglish | PDF | 1995 | 643 Pages | ISBN : 354058661X | 59 MB
In view of recent development in perturbation theory, supplementary notes and a supplementary bibliography are added at the end of the new edition. Little change has been made in the text except that the para graphs V-§ 4.5, VI-§ 4.3, and VIII-§ 1.4 have been completely rewritten, and a number of minor errors, mostly typographical, have been corrected.