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On Fuzzy Arithmetic Operations: Some Properties and Distributive Approximations

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Author Info
Luciano Stefanini () (Department of Economics, Università di Urbino "Carlo Bo")
Maria Letizia Guerra () (Department of Mathematics for Social and Economic Sciences, University of Bologna and Department of Economics, Università di Urbino "Carlo Bo")

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Abstract

We analyze a decomposition of the fuzzy numbers (or intervals) which seems to be of interest in the study of some properties of fuzzy arithmetic operations and, in particular, in the analysis of fuzziness, of shape-preservation (symmetry) and distributivity of multiplication and division. By the use of the same decomposition, we suggest an approximation of multiplication and division to reduce the overestimation e?ect and/or to obtain total-distributivity of multiplication and left-distributivity of division. Finally, we compare the proposed approximation with the results of standard (a-cuts based) fuzzy mathematics and with other new definitions of fuzzy arithmetic operations that recently appeared in the literature.

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File URL: http://www.econ.uniurb.it/RePEc/urb/wpaper/WP_07_03.pdf
File Format: application/pdf
File Function: First version, 2007
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Publisher Info
Paper provided by University of Urbino Carlo Bo, Department of Economics in its series Working Papers with number 0703.

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Length: 19 pages
Date of creation: 2007
Date of revision: 2007
Handle: RePEc:urb:wpaper:07_03

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Web page: http://www.econ.uniurb.it/
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Related research
Keywords: Fuzzy Sets; Fuzzy Calculus; fuzzy arithmetic operations;

Find related papers by JEL classification:
C00 - Mathematical and Quantitative Methods - - General - - - General
C60 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - General
C63 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - Computational Techniques
D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General

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This page was last updated on 2009-11-15.


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