Title
The algebraic and lattice structures of type-2 intuitionistic fuzzy sets
Abstract
Type-2 intuitionistic fuzzy sets are proposed as functions from non empty set U to $${\mathbf {T}}^{\mathbf {T}}$$ where $${\mathbf {T}}=\{(\mu ,\nu ):\mu +\nu \le 1,\mu \ge 0,\nu \ge 0\}$$ and $${\mathbf {T}}^{\mathbf {T}}$$ is the set of all mappings from $${\mathbf {T}}$$ to $${\mathbf {T}}$$. The members of $${\mathbf {T}}^{\mathbf {T}}$$ are called intuitionistic fuzzy values (IFV). In this paper, we develop a mathematical framework for IFVs by defining a set of generalized operations on $${\mathbf {T}}^{\mathbf {T}}$$ and proved it to be an algebra. The other important properties like convexity, normality of IFVs and many important subalgebras are also explored and studied. Furthermore, two partial orders based on generalized operations are defined, which enable us to study the lattices in $${\mathbf {T}}^{\mathbf {T}}$$.
Year
DOI
Venue
2020
10.1007/s40314-019-1008-0
Computational and Applied Mathematics
Keywords
DocType
Volume
Type-2 fuzzy sets, Type-2 intuitionistic fuzzy sets, Intuitionistic fuzzy values, Algebra, 03B52, 47S40, 46S40
Journal
39
Issue
ISSN
Citations 
1
2238-3603
1
PageRank 
References 
Authors
0.40
0
4
Name
Order
Citations
PageRank
Zia Bashir112.09
M. G. Abbas Malik210.40
Faisal Afridi310.40
Tabasam Rashid425519.40