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

Smarandache Curves According to Sabban Frame Belonging to Mannheim Curves Pair
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we investigate special Smarandache curves according to Sabban frame, using the idea of Mannheim partner curve of spherical indicatrix. We created Sabban frame by means of Mannheim partner curve of spherical ... 
On Andersson's inequality for yyperbolically convex functions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we use Andersson's Inequality for ordinary convex functions to prove a similar inequalities concerning hyperbolically convex functions. 
Robust Bayesian Regression Analysis Using RamsayNovick Distributed Errors with Studentt Prior
(Ankara Üniversitesi Fen Fakültesi, 20190201)This paper investigates bayesian treatment of regression modelling with Ramsay  Novick (RN) distribution specifically developed for robust inferential procedures. It falls into the category of the socalled heavytailed ... 
On the stochastic restricted Liutype maximum likelihood estimator in logistic regression model
(Ankara Üniversitesi Fen Fakültesi, 20190201)In order to overcome multicollinearity, we propose a stochastic restricted Liutype maximum likelihood estimator by incorporating Liutype maximum likelihood estimator to the logistic regression model when the linear ... 
Wavelet estimation of semiparametric errors in variables model
(Ankara Üniversitesi Fen Fakültesi, 20190201)Most of the work on wavelet estimation when the variables are measured with errors have centered around nonparametric approaches which cause curse of dimensionality. In this paper it is aimed to avoid this complexity using ... 
Coefficient estimates for certain subclass of meromorphic and biunivalent functions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we introduce and investigate an interesting subclass of meromorphic and biunivalent functions on Δ={z∈C :1 <z<∞}. Furthermore, for functions belonging to this class, estimates on the initial coefficients ... 
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 ... 
On almost αparaKenmotsu manifolds satisfyıng certain conditions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we study some remarkable properties of almost αparaKenmotsu manifolds. We consider projectively flat, conformally flat and concircularly flat almost αparaKenmotsu manifolds (with the ηparallel tensor ... 
Iterated bootstrap procedure in individual bioequivalence
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we propose an iterating principle in the bootstrap method to assess the individual bioequivalence under 2×4 randomized crossover design. The finite sample properties of the proposed algorithm are illustrated ... 
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 ... 
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 ... 
Numerical Solutions of Time Fractional Kortewegde Vries Equation and Its Stability Analysis
(Ankara Üniversitesi, 20190201)In this study, the fractional derivative and finite difference operators are analyzed. The time fractional KdV equation with initial condition is considered. Discretized equation is obtained with the help of finite difference ... 
On the numerical solution of the KleinGordon equation by exponential cubic Bspline collocation method
(Ankara Üniversitesi, 20190201)In the present study, we solve initial boundary value problem constructed on nonlinear KleinGordon equation. The collocation method on exponential cubic Bspline functions forming a set of basis for the functions defined ... 
αinclusions applied to group theory via soft set and logic
(Ankara Üniversitesi, 20190201)Soft set theory, initiated by Molodtsov, is a tool for modeling various types of uncertainty. In this paper, upper and lower αinclusions of a soft set are defined. By using these new notions, some analyzes with respect ... 
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 ... 
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 ... 
Mathematical Analysis and Numerical Simulations for the Cancer Tissue Invasion Model
(Ankara Üniversitesi, 20190201)Cancer cell invasion is one of the most important stages of metastasis. In this paper, the local existence and uniqueness of the cancer cell invasion model is proved using an iterative procedure. Moreover the numerical ... 
Fixed point theorems for single valued αψmappings in fuzzy metric spaces
(Ankara Üniversitesi, 20190201)This article is the forward result of αadmissible and (α,ψ)contractive mappings in fuzzy metric spaces. We establish new theorem for such contractions to find fixed point in fuzzy metric space. Our Theorem is generalizations ... 
QuasiSasakian Structures on 5dimensional Nilpotent Lie Algebras
(Ankara Üniversitesi, 20190201)In this study, we examine the existence of quasiSasakian structures on nilpotent Lie algebras of dimension five. In addition, we give some results about left invariant quasiSasakian structures on Lie groups of dimension ... 
Complete system of invariants of vectors for isometry group in ndımensional unitary space
(Ankara Üniversitesi, 20190201)In this study, invariants of vector systems for isometry group are investigated. The complete system of invariants of vectors for isometry group in ndimensional unitary space is obtained and it is shown that this complete ...