perturbation quantity

perturbation quantity

[‚pər·tər′bā·shən ‚kwän·əd·ē]
(physics)
Any characteristic of a system which may be assumed to be a perturbation from an established value.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The emerging non-linear differential equation doesn't contain any small or large parameter called the perturbation quantity. Therefore, to solve the non-linear equation we have used the homotopy analysis method (HAM) to obtain the explicit analytic solution of the emerging non-linear equation.
The emerging non- linear differential equation doesn't contain any small or large parameter called the perturbation quantity. Therefore perturbation technique fails to convert completely the non-linear problem into linear sub-problems.