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arXiv 1705.09484math.NAcs.NA
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切比雪夫差分四阶法用于高阶奇异摄动问题的数值解法

Chebyshev Differential Quadrature for Numerical Solutions of Higher Order Singular Perturbation Problems

Istanbul Kemerburgaz University(伊斯坦布尔凯梅尔博加兹大学);Istanbul Gelişim University(伊斯坦布尔盖利希姆大学)

Gülsemay Yıgıt, Mustafa Bayram

AI总结:

本文利用切比雪夫多项式构建加权系数矩阵,解决高阶奇异摄动问题,通过测试案例验证了方法的准确性和有效性。

摘要:

本文研究了线性和非线性高阶奇异摄动问题,采用差分四阶法进行数值求解。主要思想是利用切比雪夫多项式获得加权系数矩阵,进而求解数值结果。随后,考虑了不同类别的摄动问题作为测试案例,所有结果均以表格形式展示,并通过数值解与精确解的比较,展示了所提方法的准确性和有效性。

英文摘要:

In this study linear and nonlinear higher order singularly perturbed problems are examined by a numerical approach, the differential quadrature method. Here, the main idea is using Chebyshev polynomials to acquire the weighting coefficient matrix which is necessary to get numerical results. Following this, different class of perturbation problems are considered as test problems. Then, all results are shown in tables and also comparison between numerical and exact solution shows the accuracy and effectiveness of the presented method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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