E. J. Hinch
Perturbation Methods
Cambridge Texts in Applied Mathematics
ISBN-13: 978-0521378970
C. M. Bender y S. A. Orszag
Advanced Mathematical Methods for Scientists and Engineers: Asymptotic Methods and Perturbation Theory (v. 1)
Springer Verlag
ISBN-13: 978-0387989310
D. Gottlieb y S. A. Orszag
Numerical Analysis of Spectral Methods : Theory and Applications
Society for Industrial and Applied Mathematics (January 1, 1987)
ISBN-13: 978-0898710236
H. Jeffreys y B. Jeffreys
Methods of Mathematical Physics
Cambridge Mathematical Library, 3 edition (January 13, 2000)
ISBN-13: 978-0521664028
S. Hassani
Mathematical Physics
Springer Verlag
ISBN-13: 978-0387985794