A new fuzzy approximation method to Cauchy problems by fuzzy transform

被引:77
作者
Khastan, A. [1 ]
Perfilieva, I. [2 ]
Alijani, Z. [1 ]
机构
[1] IASBS, Dept Math, Zanjan 4513766731, Iran
[2] Univ Ostrava, Inst Res & Applicat Fuzzy Modelling, NSC IT4Innovat, CZ-70103 Ostrava, Czech Republic
关键词
F-transform; Higher degree F-transform; Cauchy problem; Fuzzy initial value problem; Mid-point rule; PREDICTOR-CORRECTOR METHOD; DIFFERENTIAL-EQUATIONS; NUMERICAL-SOLUTION;
D O I
10.1016/j.fss.2015.01.001
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We present new numeric methods based on the first and second degree F-transform for solving the Cauchy problem. We show that they outperform the second order Runge-Kutta method especially when a right-hand function is oscillating and/or a solution is requested on a long interval. Moreover, a new numeric method to solve fuzzy initial value problem using the F-transform is presented. The suitability of the presented new methods is theoretically justified and illustrated on various examples. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:75 / 95
页数:21
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