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Solvability of a Bounded Parametric System in Max-Łukasiewicz Algebra

Author

Listed:
  • Martin Gavalec

    (Faculty of Informatics and Management, University of Hradec Králové, 50003 Hradec Králové, Czech Republic)

  • Zuzana Němcová

    (Faculty of Informatics and Management, University of Hradec Králové, 50003 Hradec Králové, Czech Republic)

Abstract

The max-Łukasiewicz algebra describes fuzzy systems working in discrete time which are based on two binary operations: the maximum and the Łukasiewicz triangular norm. The behavior of such a system in time depends on the solvability of the corresponding bounded parametric max-linear system. The aim of this study is to describe an algorithm recognizing for which values of the parameter the given bounded parametric max-linear system has a solution—represented by an appropriate state of the fuzzy system in consideration. Necessary and sufficient conditions of the solvability have been found and a polynomial recognition algorithm has been described. The correctness of the algorithm has been verified. The presented polynomial algorithm consists of three parts depending on the entries of the transition matrix and the required state vector. The results are illustrated by numerical examples. The presented results can be also applied in the study of the max-Łukasiewicz systems with interval coefficients. Furthermore, Łukasiewicz arithmetical conjunction can be used in various types of models, for example, in cash-flow system.

Suggested Citation

  • Martin Gavalec & Zuzana Němcová, 2020. "Solvability of a Bounded Parametric System in Max-Łukasiewicz Algebra," Mathematics, MDPI, vol. 8(6), pages 1-16, June.
    • Handle: RePEc:gam:jmathe:v:8:y:2020:i:6:p:1026-:d:375131
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