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Keywords = bipolar complex fuzzy normal subgroups

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17 pages, 1415 KB  
Article
Bipolar Complex Fuzzy Subgroups
by Xiaopeng Yang, Tahir Mahmood and Ubaid ur Rehman
Mathematics 2022, 10(16), 2882; https://doi.org/10.3390/math10162882 - 11 Aug 2022
Cited by 16 | Viewed by 6365
Abstract
In this study, firstly, we interpret the level set, support, kernel for bipolar complex fuzzy (BCF) set, bipolar complex characteristic function, and BCF point. Then, we interpret the BCF subgroup, BCF normal subgroup, BCF conjugate, normalizer for BCF subgroup, cosets, BCF abelian subgroup, [...] Read more.
In this study, firstly, we interpret the level set, support, kernel for bipolar complex fuzzy (BCF) set, bipolar complex characteristic function, and BCF point. Then, we interpret the BCF subgroup, BCF normal subgroup, BCF conjugate, normalizer for BCF subgroup, cosets, BCF abelian subgroup, and BCF factor group. Furthermore, we present the associated examples and theorems, and prove these associated theorems. After that, we interpret the image and pre-image of BCF subgroups under homomorphism and prove the related theorems. Full article
(This article belongs to the Section D2: Operations Research and Fuzzy Decision Making)
16 pages, 321 KB  
Article
A Novel Algebraic Structure of (α,β)-Complex Fuzzy Subgroups
by Hanan Alolaiyan, Halimah A. Alshehri, Muhammad Haris Mateen, Dragan Pamucar and Muhammad Gulzar
Entropy 2021, 23(8), 992; https://doi.org/10.3390/e23080992 - 30 Jul 2021
Cited by 28 | Viewed by 3145
Abstract
A complex fuzzy set is a vigorous framework to characterize novel machine learning algorithms. This set is more suitable and flexible compared to fuzzy sets, intuitionistic fuzzy sets, and bipolar fuzzy sets. On the aspects of complex fuzzy sets, we initiate the abstraction [...] Read more.
A complex fuzzy set is a vigorous framework to characterize novel machine learning algorithms. This set is more suitable and flexible compared to fuzzy sets, intuitionistic fuzzy sets, and bipolar fuzzy sets. On the aspects of complex fuzzy sets, we initiate the abstraction of (α,β)-complex fuzzy sets and then define α,β-complex fuzzy subgroups. Furthermore, we prove that every complex fuzzy subgroup is an (α,β)-complex fuzzy subgroup and define (α,β)-complex fuzzy normal subgroups of given group. We extend this ideology to define (α,β)-complex fuzzy cosets and analyze some of their algebraic characteristics. Furthermore, we prove that (α,β)-complex fuzzy normal subgroup is constant in the conjugate classes of group. We present an alternative conceptualization of (α,β)-complex fuzzy normal subgroup in the sense of the commutator of groups. We establish the (α,β)-complex fuzzy subgroup of the classical quotient group and show that the set of all (α,β)-complex fuzzy cosets of this specific complex fuzzy normal subgroup form a group. Additionally, we expound the index of α,β-complex fuzzy subgroups and investigate the (α,β)-complex fuzzification of Lagrange’s theorem analog to Lagrange’ theorem of classical group theory. Full article
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