Browsing Cilt:68 Sayı:01 (2019) by Title
Now showing items 120 of 98

A class of submersions and compatible maps in Finsler geometry
(Ankara Üniversitesi Fen Fakültesi, 20190201)We introduce a class of submersions between two Finslerian manifolds and the class of Finslercompatible maps which contains the previous class. Defining also the notion of stretch it follows an upper bound for the stretch ... 
A data science study for determining food quality: an application to wine
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, wine quality is investigated based on physicochemical ingredients which include fixed acidity, volatile acidity, citric acid, residual sugar, chloride, free sulfur dioxide, total sulfur dioxide, density, pH, ... 
A Generalized Version of Foster and Stuart's dstatistic
(Ankara Üniversitesi, 20190201)Assume that only the lists of upper krecords and lower krecords of a finite sequence are available and the existence of a monotonic trend in location is interested in. In this study, a distributionfree test based on the ... 
A method for solving general singular equations and its application
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper we present a new method for solving general singular equations of normal type. As an application of this method, we give a solution for a class of convolutiontype integral equations 
A new family of the continuous distributions: the extended WeibullG family
(Ankara Üniversitesi, 20190201)In this study, we present a new family of continuous distributions via an extended form of the Weibull distribution. Some special members of the newly defined family are discussed and the new univariate continuous distributions ... 
A new perspective of transmuted distribution
(Ankara Üniversitesi Fen Fakültesi, 20190201)Regarding the concept of quadratic rank transmutation, a new distribution with convex combinations of the life distributions of twocomponent systems (series and parallel systems) whose component lifetimes are not identical ... 
A new representation of constant angle surfaces in H²×R with split quaternions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper we study surfaces in H²×R for which the unit normal makes a constant angle with the Rdirection. The main idea is to show that constant angle surfaces in H²×R can be obtained by split quaternion product and ... 
A Note On Statistical Approximation Properties of Complex qSzász Mirakjan Operators
(Ankara Üniversitesi, 20190201)The complex qSzászMirakjan operator attached to analytic functions satisfying a suitable exponential type growth condition has been studied in [14]. In this paper, we consider the Astatistical convergence of complex ... 
A Study on a Partially Null Curve in E₂⁴
(Ankara Üniversitesi, 20190201)In this paper, we study with Frenet equations which are given in [3] of a partially null curve in Semi Euclidean 4space E₂⁴ with index 2. By using the Frenet equations, we give some theorem and corollary. A characterization ... 
Actions of internal groupoids in the category of Leibniz algebras
(Ankara Üniversitesi Fen Fakültesi, 20190201)The aim of this paper is to characterize the notion of internal category (groupoid) in the category of Leibniz algebras and investigate some properties of wellknown notions such as covering groupoids and groupoid operations ... 
Actions of soft groups
(Ankara Üniversitesi Fen Fakültesi, 20190201)The soft set theory proposed by Molodtsov is a recent mathematical approach for modeling uncertainty and vagueness. The main aim of this study is to introduce the concept of soft action by combining soft set theory with ... 
Analysis and optimal control of an HIV model with logistic growth and infected cells in eclipse phase
(Ankara Üniversitesi Fen Fakültesi, 20190201)A mathematical model of the human immunodeficiency virus infection with logistic growth, infected cells in eclipse phase and therapy is investigated. The model includes four nonlinear differential equations describing the ... 
Approximate controllability of neutral integrodifferential inclusions via resolvent operators
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this work, a set of sufficient conditions are established for the approximate controllability for neutral integrodifferential inclusions in Banach spaces. The theory of fractional power and αnorm is used because of the ... 
Approximate controllability of secondorder stochastic nonautonomous integrodifferential inclusions by resolvent operators
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we formulate a set of sufficient conditions for the approximate controllability for a class of secondorder stochastic nonautonomous integrodifferential inclusions in Hilbert space. We establish the results ... 
Approximately Groups in Proximal Relator Spaces
(Ankara Üniversitesi Fen Fakültesi, 20190201)The focus of this article is on defining descriptive approximations of sets or algebraic structures in proximal relator spaces. By way of a practical application, descriptive approximately algebraic structures such as ... 
Assessment of supplier risk for copper procurement
(Ankara Üniversitesi Fen Fakültesi, 20190201)Procurement risk management (PRM) requires a good understanding and assessment of all potential risks. As the procurement industry mostly functions globally and the supplydemand chain forms a dependency structure among ... 
Asymptotic Behavior of the NonAutonomous ReactionDiffusion Equation with Robin Boundary Condition
(Ankara Üniversitesi, 20190201)In this paper, we investigate the longtime behavior of the timedependent reactiondiffusion equation u_{t}Δu+a(x)u^{ρ}ub(x)u^{ν}u=h(x,t) with Robin boundary condition. We begin this paper with the existence and ... 
Best bound for λ pseudo starlike functions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we obtain sharp upper bound to the second Hankel determinant for the functions belong to the class of λ pseudo starlike functions, an interesting sub class of univalent functions defined in the open unit ... 
BinomialDiscrete Lindley Distribution
(Ankara Üniversitesi, 20190201)In this paper, a new discrete distribution called BinomialDiscrete Lindley (BDL) distribution is proposed by compounding the binomial and discrete Lindley distributions. Some properties of the distribution are discussed ... 
Bounds for initial MacLaurin coefficients of a subclass of biunivalent functions associated with subordination
(Ankara Üniversitesi, 20190201)In this paper, we investigate the bounds of the coefficients for new subclasses of analytic and biunivalent functions in the open unit disc defined by subordination. The coefficients bounds presented in this paper would ...