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On modified decomposition of interval matrices and its application

    Author

    • Marzieh Dehghani-Madiseh

    Department of Mathematics, Faculty of Mathematical Sciences and Computer, Shahid Chamran University of Ahvaz, Ahvaz, Iran

,

Document Type : Regular paper

10.52547/CMCMA.1.2.122
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Abstract

In this paper we present the LU decomposition of a generalized interval matrix ${\bf{A}}$ under a modified interval arithmetic. This modified interval arithmetic is defined on generalized intervals and possesses group properties with respect to the addition and multiplication operations. These properties cause that the two computed generalized interval matrices ${\bf{L}}$ and ${\bf{U}}$ from the LU decomposition satisfy ${\bf{A}}={\bf{L}}{\bf{U}}$, with equality in modified interval arithmetic instead of the weaker inclusion in the classical interval arithmetic. Some applications of the new technique for solving interval linear systems are given and effectiveness of the new approach is investigated along some numerical tests.

Keywords

  • Decomposition of matrices
  • Interval linear systems
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Computational Mathematics and Computer Modeling with Applications (CMCMA)
Volume 1, Issue 2 - Serial Number 2
December 2022
Pages 122-128
Files
  • XML
  • PDF 110.57 K
History
  • Receive Date: 21 July 2022
  • Revise Date: 14 August 2022
  • Accept Date: 26 May 2023
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How to cite
  • RIS
  • EndNote
  • Mendeley
  • BibTeX
  • APA
  • MLA
  • HARVARD
  • CHICAGO
  • VANCOUVER
Statistics
  • Article View: 111
  • PDF Download: 198

APA

Dehghani-Madiseh, M. (2022). On modified decomposition of interval matrices and its application. Computational Mathematics and Computer Modeling with Applications (CMCMA), 1(2), 122-128. doi: 10.52547/CMCMA.1.2.122

MLA

Dehghani-Madiseh, M. . "On modified decomposition of interval matrices and its application", Computational Mathematics and Computer Modeling with Applications (CMCMA), 1, 2, 2022, 122-128. doi: 10.52547/CMCMA.1.2.122

HARVARD

Dehghani-Madiseh, M. (2022). 'On modified decomposition of interval matrices and its application', Computational Mathematics and Computer Modeling with Applications (CMCMA), 1(2), pp. 122-128. doi: 10.52547/CMCMA.1.2.122

CHICAGO

M. Dehghani-Madiseh, "On modified decomposition of interval matrices and its application," Computational Mathematics and Computer Modeling with Applications (CMCMA), 1 2 (2022): 122-128, doi: 10.52547/CMCMA.1.2.122

VANCOUVER

Dehghani-Madiseh, M. On modified decomposition of interval matrices and its application. Computational Mathematics and Computer Modeling with Applications (CMCMA), 2022; 1(2): 122-128. doi: 10.52547/CMCMA.1.2.122

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