求解二阶边值问题的一类新的高阶差分格式

IF 1 Q4 CHEMISTRY, MULTIDISCIPLINARY Iranian journal of mathematical chemistry Pub Date : 2018-09-01 DOI:10.22052/IJMC.2018.94933.1306
Morteza Bisheh-Niasar, A. Saadatmandi, M. Akrami-Arani
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引用次数: 4

摘要

化学、纳米技术、生物学、自然科学、化学物理和工程中的许多问题都是用两点边值问题来建模的。一般来说,这些问题的解析解是不存在的。本文提出了一类新的求解特殊二阶非线性两点边值问题的高阶精确方法。讨论了这些方法的局部截断误差。为了说明新方法的潜力,我们将其应用于解决一些众所周知的问题,包括Troesch问题、Bratu问题和某些奇摄动问题。Bratu的问题和Troech的问题,可以用来模拟一些化学反应-扩散和传热过程。我们还将本工作的结果与文献中已有的一些结果进行了比较,表明新方法是有效和适用的。
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A new family of high-order difference schemes for the solution of second order boundary value problems
Many problems in chemistry, nanotechnology, biology, natural science, chemical physics and engineering are modeled by two point boundary value problems. In general, analytical solution of these problems does not exist. In this paper, we propose a new class of high-order accurate methods for solving special second order nonlinear two point boundary value problems. Local truncation errors of these methods are discussed. To illustrate the potential of the new methods, we apply them for solving some well-known problems, including Troesch’s problem, Bratu’s problem and certain singularly perturbed problem. Bratu’s problem and Troech’s problems, may be used to model some chemical reaction-diffusion and heat transfer processes. We also compare the results of this work with some existing results in the literature and show that the new methods are efficient and applicable.
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来源期刊
Iranian journal of mathematical chemistry
Iranian journal of mathematical chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
2.10
自引率
7.70%
发文量
0
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