solution-set invariant matrices and vectors in fuzzy relation inequalities based on max-aggregation function composition

Authors

f. kouchakinejad

department of mathematics, graduate university of advanced technology, kerman, iran m. mashinchi

department of statistics, faculty of mathematics and computer sciences, shahid bahonar university of kerman, kerman, iran r. mesiar

slovak university of technology in bratislava, faculty of civil engineering, radlinskeho 11, 810 05 bratislava, slovak republic

abstract

fuzzy relation inequalities based on max-f composition are discussed, where f is a binary aggregation on [0,1]. for a fixed fuzzy relation inequalities system $ a circ^{f}textbf{x}leqtextbf{b}$, we characterize all matrices $ a^{'} $ for which the solution set of the system $ a^{' } circ^{f}textbf{x}leqtextbf{b}$ is the same as the original solution set. similarly, for a fixed matrix $ a $, the possible perturbations $ b^{'} $ of the right-hand side vector $ b $ not modifying the original solution set are determined. several illustrative examples are included to clarify the results of the paper.

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Journal title:
iranian journal of fuzzy systems

جلد ۱۳، شماره ۷، صفحات ۹۱-۱۰۰

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