Note on “Trapezoidal approximation of fuzzy numbers”

Authors:
T. Allahviranloo;M. Adabitabar Firozja
Affiliations:
Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran 14778, Iran;Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran 14778, Iran and Department of Mathematics, Islamic Azad University, Qaemshahr, Iran
Venue:
Fuzzy Sets and Systems
Year:
2007

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Abstract

We show by two examples that trapezoidal approximation of fuzzy number A in Grzegorzewski, Mrowka [Fuzzy Sets and Systems 153 (2005) 115-135] are not always trapezoidal.