Method of Infinite System of Equations for Problems in Unbounded Domains

Many problems of mechanics and physics are posed in unbounded (or infinite) domains. For solving these problems one typically limits them to bounded domains and find ways to set appropriate conditions on artificial boundaries or use quasi-uniform grid that maps unbounded domains to bounded ones. Dif...

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Main Authors: Dang Quang A, Tran Dinh Hung
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/584704
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author Dang Quang A
Tran Dinh Hung
author_facet Dang Quang A
Tran Dinh Hung
author_sort Dang Quang A
collection DOAJ
description Many problems of mechanics and physics are posed in unbounded (or infinite) domains. For solving these problems one typically limits them to bounded domains and find ways to set appropriate conditions on artificial boundaries or use quasi-uniform grid that maps unbounded domains to bounded ones. Differently from the above methods we approach to problems in unbounded domains by infinite system of equations. In this paper we present starting results in this approach for some one-dimensional problems. The problems are reduced to infinite system of linear equations. A method for obtaining approximate solution with a given accuracy is proposed. Numerical experiments for several examples show the effectiveness of the offered method.
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institution Kabale University
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spelling doaj-art-588dfa4f63bd417c892b4f7ea7958bd82025-02-03T01:29:11ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/584704584704Method of Infinite System of Equations for Problems in Unbounded DomainsDang Quang A0Tran Dinh Hung1Institute of Information Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, VietnamCollege of Education, Thai Nguyen University, Thai Nguyen City 23000, VietnamMany problems of mechanics and physics are posed in unbounded (or infinite) domains. For solving these problems one typically limits them to bounded domains and find ways to set appropriate conditions on artificial boundaries or use quasi-uniform grid that maps unbounded domains to bounded ones. Differently from the above methods we approach to problems in unbounded domains by infinite system of equations. In this paper we present starting results in this approach for some one-dimensional problems. The problems are reduced to infinite system of linear equations. A method for obtaining approximate solution with a given accuracy is proposed. Numerical experiments for several examples show the effectiveness of the offered method.http://dx.doi.org/10.1155/2012/584704
spellingShingle Dang Quang A
Tran Dinh Hung
Method of Infinite System of Equations for Problems in Unbounded Domains
Journal of Applied Mathematics
title Method of Infinite System of Equations for Problems in Unbounded Domains
title_full Method of Infinite System of Equations for Problems in Unbounded Domains
title_fullStr Method of Infinite System of Equations for Problems in Unbounded Domains
title_full_unstemmed Method of Infinite System of Equations for Problems in Unbounded Domains
title_short Method of Infinite System of Equations for Problems in Unbounded Domains
title_sort method of infinite system of equations for problems in unbounded domains
url http://dx.doi.org/10.1155/2012/584704
work_keys_str_mv AT dangquanga methodofinfinitesystemofequationsforproblemsinunboundeddomains
AT trandinhhung methodofinfinitesystemofequationsforproblemsinunboundeddomains