@Article{,
author="",
title="Cover vol. 11, no. 2, April 2014",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="-0",
abstract="",
issn="1735-0654",
doi="10.22111/ijfs.2014.2689",
url="http://ijfs.usb.ac.ir/article_2689.html"
}
@Article{Sathy2014,
author="Sathy, R.
and Balasubramaniam, P.
and Chandran, R.",
title="Robust stability of fuzzy Markov type Cohen-Grossberg neural networks by delay decomposition approach",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="1-16",
abstract="In this paper, we investigate the delay-dependent robust stability of fuzzy Cohen-Grossberg neural networks with Markovian jumping parameter and mixed time varying delays by delay decomposition method. A new Lyapunov-Krasovskii functional (LKF) is constructed by nonuniformly dividing discrete delay interval into multiple subinterval, and choosing proper functionals with different weighting matrices corresponding to different subintervals in the LKFs. A new delay-dependent stability condition is derived with Markovian jumping parameters by T-S fuzzy model. Based on the linear matrix inequality (LMI) technique, maximum admissible upper bound (MAUB) for the discrete and distributed delays are calculated by the LMI Toolbox in MATLAB. Numerical examples are given to illustrate the effectiveness of the proposed method.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1487",
url="http://ijfs.usb.ac.ir/article_1487.html"
}
@Article{Ciungu2014,
author="Ciungu, L. C.
and Riecan, B.",
title="The Inclusion-Exclusion Principle for IF-States",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="17-25",
abstract="Applying two definitions of the union of IF-events, P. Grzegorzewski gave two generalizations of the inclusion-exclusion principle for IF-events.In this paper we prove an inclusion-exclusion principle for IF-states based on a method which can also be used to prove Grzegorzewski's inclusion-exclusion principle for probabilities on IF-events.Finally, we give some applications of this principle by extending some results regarding the classical probabilities to the case of the IF-states.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1488",
url="http://ijfs.usb.ac.ir/article_1488.html"
}
@Article{Farhadinia2014,
author="Farhadinia, B.",
title="Pontryagin's Minimum Principle for Fuzzy Optimal Control Problems",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="27-43",
abstract="The objective of this article is to derive the necessary optimality conditions, known as Pontryagin's minimum principle, for fuzzy optimal control problems based on the concepts of differentiability and integrability of a fuzzy mapping that may be parameterized by the left and right-hand functions of its $\alpha$-level sets.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1489",
url="http://ijfs.usb.ac.ir/article_1489.html"
}
@Article{Li2014,
author="Li, Deng-Feng
and Nan, Jiang-Xia",
title="An interval-valued programming approach to matrix games with payoffs of triangular intuitionistic fuzzy numbers",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="45-57",
abstract="The purpose of this paper is to develop a methodology for solving a new type of matrix games in which payoffs are expressed with triangular intuitionistic fuzzy numbers (TIFNs). In this methodology, the concept of solutions for matrix games with payoffs of TIFNs is introduced. A pair of auxiliary intuitionistic fuzzy programming models for players are established to determine optimal strategies and the value of the matrix game with payoffs of TIFNs. Based on the cut sets and ranking order relations between TIFNs, the intuitionistic fuzzy programming models are transformed into linear programming models, which are solved using the existing simplex method. Validity and applicability of the proposed methodology are illustrated with a numerical example of the market share problem.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1490",
url="http://ijfs.usb.ac.ir/article_1490.html"
}
@Article{Ashtiani2014,
author="Ashtiani, Arya Aghili
and Yadavar Nikravesh, Seyed Kamaleddin",
title="Fuzzy Relational Matrix-Based Stability Analysis for First-Order Fuzzy Relational Dynamic Systems",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="59-70",
abstract="In this paper, two sets of sufficient conditions are obtained to ensure the existence and stability of a unique equilibrium point of unforced first-order fuzzy relational dynamical systems by using two different approaches which are both based on the fuzzy relational matrix of the model.In the first approach, the equilibrium point of the system is one of the centers of the related membership functions.In the second approach, the equilibrium point of the system is the origin (the center of the middle membership function) and the behavior of the system, though can be nonlinear, is symmetric around the origin.The results are approved by numerical examples.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1502",
url="http://ijfs.usb.ac.ir/article_1502.html"
}
@Article{Behzadi2014,
author="Behzadi, S. S.
and Allahviranloo, T.
and Abbasbandy, S.",
title="Fuzzy collocation methods for second- order fuzzy Abel-Volterra integro-differential equations",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="71-88",
abstract="In this paper we intend to offer new numerical methods to solve the second-order fuzzy Abel-Volterraintegro-differential equations under the generalized $H$-differentiability. The existence and uniqueness of thesolution and convergence of the proposed methods are proved in details and the efficiency of the methods is illustrated through a numerical example.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1503",
url="http://ijfs.usb.ac.ir/article_1503.html"
}
@Article{Liu2014,
author="Liu, Hongxing",
title="Fuzzy projective modules and tensor products in fuzzy module categories",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="89-101",
abstract="Let $R$ be a commutative ring. We write $\mbox{Hom}(\mu_A, \nu_B)$ for the set of all fuzzy $R$-morphisms from $\mu_A$ to $\nu_B$, where $\mu_A$ and $\nu_B$ are two fuzzy $R$-modules. We make$\mbox{Hom}(\mu_A, \nu_B)$ into fuzzy $R$-module by redefining a function $\alpha:\mbox{Hom}(\mu_A, \nu_B)\longrightarrow [0,1]$. We study the properties of the functor $\mbox{Hom}(\mu_A,-):FR\mbox{-Mod}\rightarrow FR\mbox{-Mod}$ and get some unexpected results. In addition, we prove that$\mbox{Hom}(\xi_p,-)$ is exact if and only if $\xi_P$ is a fuzzy projective $R$-module, when $R$ is a commutative semiperfect ring.Finally, we investigate tensor product of two fuzzy $R$-modules and get some related properties. Also, we study the relationships between Hom functor and tensor functor.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1504",
url="http://ijfs.usb.ac.ir/article_1504.html"
}
@Article{Shobkolaei2014,
author="Shobkolaei, Nabi
and Vaezpour, S. Mansour
and Sedghi, Shaban",
title="Fixed Points Theorems with respect to \\fuzzy w-distance",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="103-112",
abstract="In this paper, we shall introduce the fuzzyw-distance, then prove a common fixed point theorem with respectto fuzzy w-distance for two mappings under the condition ofweakly compatible in complete fuzzy metric spaces.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1505",
url="http://ijfs.usb.ac.ir/article_1505.html"
}
@Article{Amini-Harandi2014,
author="Amini-Harandi, A.",
title="Fixed Points of Fuzzy Generalized Contractive Mappings in Fuzzy Metric Spaces",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="113-120",
abstract="In this paper, we introduce a new concept of fuzzy generalizedcontraction and give a fixed point result for such mappings in the setting of fuzzy M-complete metric spaces. We also give an affirmative partial answer to a question posed by Wardowski [D. Wardowski, Fuzzy contractive mappings and fixed points in fuzzy metric spaces, Fuzzy Set Syst., {\bf 222}(2013), 108-114].Some examples are also given to support our main result.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1506",
url="http://ijfs.usb.ac.ir/article_1506.html"
}
@Article{Saheli2014,
author="Saheli, M.
and Hasankhani, A.
and Nazari, A.",
title="Some Properties of Fuzzy Norm of Linear Operators",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="121-139",
abstract="In the present paper, we study some properties of fuzzy norm of linear operators. At first the bounded inverse theorem on fuzzy normed linear spaces is investigated. Then, we prove Hahn Banach theorem, uniform boundedness theorem and closed graph theorem on fuzzy normed linear spaces. Finally the set of all compact operators on these spaces is studied.",
issn="1735-0654",
doi="10.22111/ijfs.2014.1507",
url="http://ijfs.usb.ac.ir/article_1507.html"
}
@Article{,
author="",
title="Persian-translation vol. 11, no. 2, April 2014",
journal="Iranian Journal of Fuzzy Systems",
year="2014",
volume="11",
number="2",
pages="143-152",
abstract="",
issn="1735-0654",
doi="10.22111/ijfs.2014.2690",
url="http://ijfs.usb.ac.ir/article_2690.html"
}