期刊
COMPUTERS & MATHEMATICS WITH APPLICATIONS
卷 58, 期 11-12, 页码 2190-2196出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.camwa.2009.03.017
关键词
Pantograph equation; Symbolic computations; Variational iteration method; Closed form solution; Delay differential equation
资金
- University of Kashan
The variational iteration method is applied to solve the generalized pantograph equation. This technique provides a sequence of functions which converges to the exact solution of the problem and is based on the use of Lagrange multipliers for identification of optimal value of a parameter in a functional. Employing this technique, it is possible to find the exact solution or an approximate solution of the problem. Some examples are given to demonstrate the validity and applicability of the method and a comparison is made with existing results. (C) 2009 Elsevier Ltd. All rights reserved.
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