Volume 23 (2026)
Volume 22 (2025)
Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
Number of Articles: 11
Exact and approximate solutions of fuzzy LR linear systems: New algorithms using a least squares model and the ABS approach
Volume 7, Issue 2 , May and June 2010, Pages 1-18
Abstract
We present a methodology for characterization and an approach for computing the solutions of fuzzy linear systems with LR fuzzy variables. As solutions, notions of exact and approximate solutions are considered. We transform the fuzzy linear system into a corresponding linear crisp system and a constrained ... Read MoreFuzzy linear regression model with crisp coefficients: A goal programming approach
Volume 7, Issue 2 , May and June 2010, Pages 1-153
Abstract
The fuzzy linear regression model with fuzzy input-output data andcrisp coefficients is studied in this paper. A linear programmingmodel based on goal programming is proposed to calculate theregression coefficients. In contrast with most of the previous works, theproposed model takes into account the ... Read MoreFUZZY CONVEX SUBALGEBRAS OF COMMUTATIVE RESIDUATED LATTICES
Volume 7, Issue 2 , May and June 2010, Pages 41-54
Abstract
In this paper, we define the notions of fuzzy congruence relations and fuzzy convex subalgebras on a commutative residuated lattice and we obtain some related results. In particular, we will show that there exists a one to one correspondence between the set of all fuzzy congruence relations and the ... Read MoreOrdered semigroups characterized by their intuitionistic fuzzy bi-ideals
Volume 7, Issue 2 , May and June 2010, Pages 55-69
Abstract
Fuzzy bi-ideals play an important role in the study of ordered semigroupstructures. The purpose of this paper is to initiate and study theintiuitionistic fuzzy bi-ideals in ordered semigroups and investigate thebasic theorem of intuitionistic fuzzy bi-ideals. To provide thecharacterizations of regular ... Read MoreM-FUZZIFYING DERIVED OPERATORS AND DIFFERENCE DERIVED OPERATORS
Volume 7, Issue 2 , May and June 2010, Pages 71-81
Abstract
This paper presents characterizations of M-fuzzifying matroids bymeans of two kinds of fuzzy operators, called M-fuzzifying derived operatorsand M-fuzzifying difference derived operators. Read MoreLOCAL BASES WITH STRATIFIED STRUCTURE IN $I$-TOPOLOGICAL VECTOR SPACES
Volume 7, Issue 2 , May and June 2010, Pages 83-93
Abstract
In this paper, the concept of {sl local base with stratifiedstructure} in $I$-topological vector spaces is introduced. Weprove that every $I$-topological vector space has a balanced localbase with stratified structure. Furthermore, a newcharacterization of $I$-topological vector spaces by means ... Read MoreAbout the fuzzy grade of the direct product of two hypergroupoids
Volume 7, Issue 2 , May and June 2010, Pages 95-108
Abstract
The aim of this paper is the study of the sequence of join spacesand fuzzy subsets associated with a hypergroupoid. In thispaper we give some properties of the membership function$widetildemu_{otimes}$ corresponding to the direct pro-duct oftwo hypergroupoids and we determine the fuzzy grade of thehypergroupoid ... Read MoreA new perspective to the Mazur-Ulam problem in $2$-fuzzy $2$-normed linear spaces
Volume 7, Issue 2 , May and June 2010, Pages 109-119
Abstract
In this paper, we introduce the concepts of $2$-isometry, collinearity, $2$%-Lipschitz mapping in $2$-fuzzy $2$-normed linear spaces. Also, we give anew generalization of the Mazur-Ulam theorem when $X$ is a $2$-fuzzy $2$%-normed linear space or $Im (X)$ is a fuzzy $2$-normed linear space, thatis, the ... Read MoreRegular ordered semigroups and intra-regular ordered semigroups in terms of fuzzy subsets
Volume 7, Issue 2 , May and June 2010, Pages 121-140
Abstract
Let $S$ be an ordered semigroup. A fuzzy subset of $S$ is anarbitrary mapping from $S$ into $[0,1]$, where $[0,1]$ is theusual interval of real numbers. In this paper, the concept of fuzzygeneralized bi-ideals of an ordered semigroup $S$ is introduced.Regular ordered semigroups are ... Read MoreActions, Norms, Subactions and Kernels of (Fuzzy) Norms
Volume 7, Issue 2 , May and June 2010, Pages 141-147
Abstract
In this paper, we introduce the notion of an action $Y_X$as a generalization of the notion of a module,and the notion of a norm $vt: Y_Xto F$, where $F$ is a field and $vartriangle(xy)vartriangle(y') =$ $ vartriangle(y)vartriangle(xy')$ as well as the notion of fuzzy norm, where $vt: Y_Xto [0, 1]subseteq ... Read MoreFuzzy Subgroups of Rank Two Abelian p-Group
Volume 7, Issue 2 , May and June 2010, Pages 149-153