As of June 2025, International Journal "Notes on Intuitionistic Fuzzy Sets" has been assigned SJR = 0.258 and Scopus quartile Q3.
Please check our Instructions to Authors and send your manuscripts to nifs.journal@gmail.com.

Open Call for Papers: 29th International Conference on Intuitionistic Fuzzy Sets • 6–7 November 2026 • Sofia, Bulgaria / Online
Deadline for submissions: 10 May 2026.

Notes on Intuitionistic Fuzzy Sets/32/1

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Notes on Intuitionistic Fuzzy Sets, Volume 32 (2026), Number 1.

Journal contents

Volume opened: 15 January 2026
Number Title Author(s) Pages
1 Invariant intuitionistic fuzzy observables Katarína Čunderlíková 1–14
2 Multi-dimensional modal topological structures, extended intuitionistic fuzzy index matrices and multi-person multi-criteria decision making procedures Krassimir Atanassov 15–29


3 TBA

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-NP7-1/2025.

Bulgarian National Science Fund bears no liability for the content of the published materials.