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A weighted goal programming approach to fuzzy linear regression with quasi type-2 fuzzy input-output data
(Işık University Press, 2016)
This study attempts to develop a regression model when both input data and output data are quasi type-2 fuzzy numbers. To estimate the crisp parameters of the regression model, a linear programming model is proposed based ...
Solving fractional-order competitive lotka-volterra model by nsfd schemes
(Işık University Press, 2016-03-23)
In this paper, we introduce fractional-order into a model competitive LotkaVolterra prey-predator system. We will discuss the stability analysis of this fractional system. The non-standard finite difference (NSFD) scheme ...
Necessary and sufficient conditions for the wave packet frames on positive half-line
(Işık University Press, 2016-04-22)
In this paper, we consider wave packet systems as special cases of generalized shift-invariant systems, a concept studied by Hern´andez, Lebate and Weiss. The objective of the paper is to construct wave packet frames on ...
Existence and nonexistence of positive solutions for a n-th order three-point boundary value problem
(Işık University Press, 2016-02-04)
The purpose of this paper is to establish some results on the existence and nonexistence of positive solutions for a type of nonlinear n-th order three-point boundary value problems. The main tool is a fixed point theorem ...
Existence and uniqueness of tripled fixed points for mixed monotone operators with perturbations and application
(Işık University Press, 2016)
In this article, we get the existence and uniqueness of tripled fixed points without assuming the operator to be compact or continuous, which extends the existing corresponding results. As applications, we utilize the ...
On coincidence and common fixed point of six maps satisfying f-contractions
(Işık University Press, 2016)
Coincidence and common fixed point of six self maps satisfying F-contractions are established via common limit in the range property without exploiting the notion of continuity or containment of range space of involved ...
Existence of positive solutions for a coupled system of higher order fractional boundary value problems
(Işık University Press, 2016)
The aim of this paper is to establish the existence of at least one positive solution for a coupled system of higher order two-point fractional order boundary value problems under suitable conditions. The approach is based ...
Hub-integrity of splitting graph and duplication of graph elements
(Işık University Press, 2016-01-08)
The hub-integrity of a graph G = (V (G), E(G)) is denoted as HI(G) and defined by HI(G) = min{|S| + m(G ? S), S is a hub set of G}, where m(G ? S) is the order of a maximum component of G ? S. In this paper, we discuss ...
Antimagic labeling of the union of subdivided stars
(Işık University Press, 2016-02-22)
Enomoto et al. (1998) defined the concept of a super (a, 0)-edge-antimagic total labeling and proposed the conjecture that every tree is a super (a, 0)-edge-antimagic total labeling. In support of this conjecture, the ...
Inextensible flows of curves in the equiform geometry of the pseudo-Galilean space G13
(Işık University Press, 2016)
In this paper, we study inextensible flows of curves in 3-dimensional pseudoGalilean space. We give necessary and sufficient conditions for inextensible flows of curves according to equiform geometry in pseudo-Galilean space.