Zobrazeno 1 - 10
of 30
pro vyhledávání: '"O. R. Sayed"'
Autor:
A. A. Abdallah, O. R. Sayed, E. El-Sanousy, Y. H. Ragheb Sayed, M. N. Abu_Shugair, Salahuddin
Publikováno v:
Symmetry, Vol 15, Iss 10, p 1926 (2023)
In this article, we introduce two new rough set models based on the concept of double fuzzy relations. These models are called optimistic and pessimistic multi-granulation double fuzzy rough sets. We discuss their properties and explore the relations
Externí odkaz:
https://doaj.org/article/3e618c1eced34f1c9f52fc89c9f9a130
Autor:
T. Noiri, O. R. Sayed
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 31, Iss 1, Pp 51-63 (2002)
The concepts of fuzzy cγ-open sets and fuzzy cγ-continuity are introduced and studied in fuzzifying topology and by making use of these concepts, some decompositions of fuzzy continuity are introduced.
Externí odkaz:
https://doaj.org/article/87ad5f832f2d4cdfb3f5d5d707563128
Autor:
O. R. Sayed, Kiliçman Kiliçman
Publikováno v:
Proyecciones (Antofagasta). 41:45-82
In this paper, some characterizations of fuzzifying strong compactness are given, including characterizations in terms of nets and presubbases. Several characterizations of locally strong compactness in the framework of fuzzifying topology are introd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f653cc65896ff636ea0e1f40b63c3689
https://doi.org/10.22199/issn.0717-6279-4948
https://doi.org/10.22199/issn.0717-6279-4948
Publikováno v:
Computational and Applied Mathematics. 42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bc711c7a6998abe93152c1e195fab93
https://doi.org/10.1007/s40314-022-02117-5
https://doi.org/10.1007/s40314-022-02117-5
Publikováno v:
Journal of Intelligent & Fuzzy Systems. 41:879-889
In the present paper, a characterization of the intuitionistic fuzzy sets, the interval-valued intuitionistic fuzzy sets and their set-operations are given. By making use of these characterizations, the relationships between the interval-valued intui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87105bf36f4b7831c814be905aed9a79
https://doi.org/10.3233/jifs-202757
https://doi.org/10.3233/jifs-202757
Publikováno v:
Journal of Intelligent & Fuzzy Systems. 40:8765-8773
Different from the separation axioms in the framework of (L, M)-fuzzy convex spaces defined by Liang et al.(2019). In this paper, we give some new investigations on separation axioms in (L, M)-fuzzy convex structures by L-fuzzy hull operators and r-L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4708487c63387875191d993b004f1022
https://doi.org/10.3233/jifs-200340
https://doi.org/10.3233/jifs-200340
Autor:
F. H. Khedr, O. R. Sayed
Publikováno v:
Universal Journal of Mathematics and Mathematical Sciences. 14:13-28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c9dd9c85decd1a8965941368d8721ba
https://doi.org/10.17654/um014010013
https://doi.org/10.17654/um014010013
Publikováno v:
Filomat. 35:1687-1691
In this paper, we point out that the proof of Theorem 2.4(5), Proposition 2.6(1) and Proposition 2.8(1) in the paper titled ?On (L,M)-fuzzy convex structures? (Filomat 33(13): 4151-4163, 2019) are not true in general. Then, we give three correct proo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5279849dbdba731291de9446d41c71b1
https://doi.org/10.2298/fil2105687z
https://doi.org/10.2298/fil2105687z
Publikováno v:
Computational and Applied Mathematics. 40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08f2ce7e085c487a9753269fc2e85326
https://doi.org/10.1007/s40314-021-01690-5
https://doi.org/10.1007/s40314-021-01690-5
Publikováno v:
Afrika Matematika. 28:887-898
Introducing the notions of soft \(\varvec{{\widetilde{t}}}\)-sets, soft \(\varvec{{\widetilde{t}}^{*}}\)-sets, soft \(\varvec{\mathcal {{\widetilde{B}}}}\)-sets, soft \(\varvec{{\widetilde{\alpha }}^{*}}\)-sets and soft \(\varvec{{\widetilde{C}}}\)-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::888ddb4b5c97c98bed17756c87a80623
https://doi.org/10.1007/s13370-017-0494-8
https://doi.org/10.1007/s13370-017-0494-8