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 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
POWERSET OPERATOR FOUNDATIONS FOR CATALG FUZZY SET THEORIES

Sergey A. Solovyov

Volume 8, Issue 2 , May and June 2011, Pages 1-46

Abstract
  The paper sets forth in detail categorically-algebraic or catalg foundations for the operations of taking the image and preimage of (fuzzy) sets called forward and backward powerset operators. Motivated by an open question of S. E. Rodabaugh, we construct a monad on the category of sets, the algebras ...  Read More

ACCEPTANCE SINGLE SAMPLING PLAN WITH FUZZY PARAMETER

Bahram Sadeghpour Gildeh; Ezzatallah Baloui Jamkhaneh; Gholamhossein Yari

Volume 8, Issue 2 , May and June 2011, Pages 47-55

Abstract
  The acceptance sampling plan problem is an important topic inquality control and both the theory of probability and theory of fuzzy sets maybe used to solve it. In this paper, we discuss the single acceptance samplingplan, when the proportion of nonconforming products is a fuzzy number. We  show ...  Read More

CREDIBILISTIC PARAMETER ESTIMATION AND ITS APPLICATION IN FUZZY PORTFOLIO SELECTION

Xiang Li; Zhongfeng Qin; Dan Ralescu

Volume 8, Issue 2 , May and June 2011, Pages 57-65

Abstract
  In this paper, a maximum likelihood estimation and a minimum entropy estimation for the expected value and variance of normal fuzzy variable are discussed within the framework of credibility theory. As an application, a credibilistic portfolio selection model is proposed, which is an improvement over ...  Read More

LATTICE-VALUED CATEGORIES OF LATTICE-VALUED CONVERGENCE SPACES

Gunther Jager

Volume 8, Issue 2 , May and June 2011, Pages 67-89

Abstract
  We study L-categories of lattice-valued convergence spaces. Suchcategories are obtained by \fuzzifying" the axioms of a lattice-valued convergencespace. We give a natural example, study initial constructions andfunction spaces. Further we look into some L-subcategories. Finally we usethis approach to ...  Read More

$(A)_ {\Delta}$ - double Sequence Spaces of fuzzy numbers via Orlicz Function

E. Savas

Volume 8, Issue 2 , May and June 2011, Pages 91-103

Abstract
  The aim of this paper is to introduce and study a new concept ofstrong double $(A)_ {\Delta}$-convergent sequence offuzzy numbers with respect to an Orlicz function and also someproperties of the resulting sequence spaces of fuzzy   numbers areexamined. In addition, we define the double$(A,\Delta)$-statistical ...  Read More

BIPOLAR FUZZY HYPER BCK-IDEALS IN HYPER BCK-ALGEBRAS

Young Bae Jun; Min Su Kang; Hee Sik Kim

Volume 8, Issue 2 , May and June 2011, Pages 105-120

Abstract
  Using the notion of bipolar-valued fuzzy sets, the concepts of bipolarfuzzy (weak, 𝑠-weak, strong) hyper BCK-ideals are introduced, and theirrelations are discussed. Moreover, several related properties are investigated.  Read More

NET-THEORETICAL L-GENERALIZED CONVERGENCE SPACES

Wei Yao

Volume 8, Issue 2 , May and June 2011, Pages 121-131

Abstract
  In this paper, the de nition of net-theoretical L-generalized convergencespaces is proposed. It is shown that, for L a frame, the category ofenriched L-fuzzy topological spaces can be embedded in that of L-generalizedconvergence spaces as a reective subcategory and the latter is a cartesianclosedtopological ...  Read More

GENERALIZED REGULAR FUZZY MATRICES

A. R. Meenakshi; P. Jenita

Volume 8, Issue 2 , May and June 2011, Pages 133-141

Abstract
  In this paper, the concept of k-regular fuzzy matrix as a general- ization of regular matrix is introduced and some basic properties of a k-regular fuzzy matrix are derived. This leads to the characterization of a matrix for which the regularity index and the index are identical. Further the relation ...  Read More

GRADATION OF CONTINUITY IN FUZZY TOPOLOGICAL SPACES

Ramkrishna Thakur; S. K. Samanta; K. K. Mondal

Volume 8, Issue 2 , May and June 2011, Pages 143-159

Abstract
  In this paper we introduce a defi nition of gradation of continuity ingraded fuzzy topological spaces and study its various characteristic properties.The impact of the grade of continuity of mappings over the N-compactnessgrade is examined. Concept of gradation is also introduced in openness, closed-ness, ...  Read More