TY  - BOOK
AU  - KatoTosio
TI  - Perturbation theory for linear operators 
T2  - Classics in mathematics
SN  - 9783540586616
U1  - 515.353 
PY  - 1995///
CY  - Berlin
PB  - Springer-verlog
KW  - Perturbation (Mathematics)
KW  - Linear operators
KW  - Mathematics
KW  - Partial Differential equations
KW  - Mathematical optimization
KW  - Functional analysis
N1  - Includes index
ER  -