Solving nonlinear functional-differential and functional equations with constant delay via block boundary value methods

Solving nonlinear functional-differential and functional equations with constant delay via block boundary value methods
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通过块边值法求解具有恒定延迟的非线性泛函微分方程和泛函方程

DOI:
10.1016/j.matcom.2019.04.004
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发表时间:
2019-12
影响因子:
4.6
通讯作者:
Zhang Chengjian
Zhang Chengjian
中科院分区:
数学3区
文献类型:
--
作者:
Yan Xiaoqiang;Zhang Chengjian

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本文研究了非线性泛函-微分方程组和常延迟泛函方程的数值解。将块边值方法(BBVM)推广到求解FDFE。在适当的条件下,证明了扩展BBVM是唯一可解且全局稳定的。此外,当Lipschitz条件成立时,该方法可以p阶收敛,并且该方法是预一致的且p阶一致的。通过几个数值算例,进一步验证了扩展BBVM的理论结果和计算有效性。
This paper deals with the numerical solutions of nonlinear functional-differential and functional equations (FDFEs) with constant delay. The block boundary value methods (BBVMs) are extended to solve the FDFEs. Under the suitable conditions, it is shown that the extended BBVMs are uniquely solvable and globally stable. Moreover, the method can be convergent of order p whenever the Lipschitz condition holds and this method is preconsistent and p-order consistent. With several numerical examples, the theoretical results and computational validity of the extended BBVMs are further confirmed.
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