Notes on Intuitionistic Fuzzy Sets/27

Notes on Intuitionistic Fuzzy Sets, Volume 27 (2021).

Number 1

Number Title Author(s) Pages 1 Lotfi A. Zadeh: A great researcher and scholar already before fuzzy sets/logic Janusz Kacprzyk 1—4 2 Lotfi Zadeh – some personal memories Eulalia Szmidt 5—8 3 Modifications of the Third Zadeh’s intuitionistic fuzzy implication Krassimir T. Atanassov and Nora Angelova 9—23 4 Circular intuitionistic fuzzy TOPSIS method with vague membership functions:Supplier selection application context Cengiz Kahraman and Nurşah Alkan 24—52 5 Note on one inequality and its application in intuitionistic fuzzy sets theory. Part 1 Mladen Vassilev-Missana 53—59 6 Intuitionistic anti fuzzy normed ideals Nour Abed Alhaleem and Abd Ghafur Ahmad 60—71 7 Connectedness concept in intuitionistic fuzzy topological spaces Md. Aman Mahbub, Md. Sahadat Hossain and M. Altab Hossain 72—82 8 Stability of intuitionistic fuzzy nonlinear fractional differential equations Said Melliani, Ali El Mfadel, Lalla Saadia Chadli and M'hamed Elomari 83—100

This issue of Int. Journal "Notes on Intuitionistic Fuzzy Sets" is published with the financial support of the Bulgarian National Science Fund, Grant Ref. No. KP-06-NP-2/23/2020.

Number 2

Number Title Author(s) Pages 1 Fuzzy logic research work in Mexico motivated by Lotfi Zadeh Oscar Castillo and Patricia Melin 1—10 2 On the weak intuitionistic fuzzy implication based on △ operation Lilija Atanassova and Piotr Dworniczak 11—19 3 Research on intuitionistic fuzzy implications Nora Angelova and Krassimir T. Atanassov 20—93 4 Martingale convergence theorem for a conditional intuitionistic fuzzy mean value Katarína Čunderlíková 94—102

This issue of Int. Journal "Notes on Intuitionistic Fuzzy Sets" is published with the financial support of the Bulgarian National Science Fund, Grant Ref. No. KP-06-NP-2/23/2020.