Abstract
This paper presents a method for solving fuzzy linear systems, where the coefficient matrix is an \(n\times n\) real matrix, using a block structure of the Core inverse, and we use the Hartwig–Spindelböck decomposition to obtain the Core inverse of the coefficient matrix A. The aim of this paper is twofold. First, we obtain a strong fuzzy solution of fuzzy linear systems, and a necessary and sufficient condition for the existence strong fuzzy solution of fuzzy linear systems are derived using the Core inverse of the coefficient matrix A. Second, general strong fuzzy solutions of fuzzy linear systems are derived, and an algorithm for obtaining general strong fuzzy solutions of fuzzy linear systems by Core inverse is also established. Finally, some examples are given to illustrate the validity of the proposed method.
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Acknowledgements
The first author was supported partially by Innovation Project of Guangxi Graduate Education [No. YCSW2019135], the New Centaury National Hundred, Thousand and Ten Thousand Talent Project of Guangxi [No. GUIZHENGFA210647HAO], the School-level Research Projectin Guangxi University for Nationalities [No. 2018MDQN005], and the Special Fund for Bagui Scholars of Guangxi [No. 2016A17]. The second author was supported partially by Guangxi Natural Science Foundation [No. 2018GXNSFAA138181], by the Xiangsihu Young Scholars Innovative Research Team of Guangxi University for Nationalities [No.GUIKE AD19245148], and the Special Fund for Science and Technological Bases and Talents of Guangxi [No. 2019AC20060]. The third author was supported partially by the National Natural Science Foundation of China [No. 61772006], Guangxi Natural Science Foundation [No. 2018GXNSFDA281023] and the Science and Technology Major Project of Guangxi [No. AA17204096].
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Communicated by Anibal Tavares de Azevedo.
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Jiang, H., Wang, H. & Liu, X. Solving fuzzy linear systems by a block representation of generalized inverse: the core inverse. Comp. Appl. Math. 39, 133 (2020). https://doi.org/10.1007/s40314-020-01156-0
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DOI: https://doi.org/10.1007/s40314-020-01156-0
Keywords
- Core inverse
- Fuzzy linear systems
- Block structure
- Hartwig–Spindelböck decomposition
- Strong fuzzy solution