Perturbations

by Gary Beck

Perturbation

by Thomas Bernhard, Bernard Kreiss

General perturbations and the perturbative function

by J. Morrison

Small perturbation theory

by William Rees Sears

Perturbation, my sister

by Kristin Prevallet, Kristin S Prevallet

Topics in singular perturbations

by Robert E. O'Malley

Perturbation theory for linear operators

by Tosio Kato

Perturbations, delices et orgues

by Max Ernst

Mathematical programming with data perturbations

by Anthony V. Fiacco

Foundations of Perturbative QCD

by Collins, John

Singularly perturbed differential equations

by Herbert Goering

Perturbations and eigenvectors

by Hendrikus Wilhelmus Andreas Dietzenbacher

Perturbation methods

by Ji-Huan He

Perturbation methods in applied mathematics

by Julian D. Cole

Perturbation Methods

by Ali H. Nayfeh

On gentle perturbations, II

by P. A. Rejto

Perturbation Theory

by Giuseppe Gaeta

Foundations of Perturbative Qcd

by John Collins

Basics of perturbative QCD

by Yuri Dokshitzer, V.A. Khoze

Beyond perturbation

by Shijun Liao

Most phenomena in our world are essentially nonlinear and are described by nonlinear equations.