Browsing Cilt:68 Sayı:02 (2019) by Publisher "Ankara Üniversitesi Fen Fakültesi"
Now showing items 120 of 90

[1,2]Complementary connected domination number of graphsIII
(Ankara Üniversitesi Fen Fakültesi, 20190801)A set S⊆V(G) in a graph G is said to be [1,2]complementary connected dominating set if for every vertex v∈VS, 1≤N(v)∩S≤2 and <VS> is connected. The minimum cardinality of [1,2]complementary connected dominating set ... 
A mathematical model of Hepatitis B transmission in Turkey
(Ankara Üniversitesi Fen Fakültesi, 20190801)Hepatitis B infection is one of the serious viral infections that is treating the global health. Turkey has an intermediate endemicity for hepatitis B. In this study, a classical SIR model for hepatitis B virus (HBV) ... 
A new result for weighted arithmetic mean summability factors of infinite series involving almost increasing sequences
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper, a known theorem dealing with weighted mean summability methods of nondecreasing sequences has been generalized for A,p_{n};δ_{k} summability factors of almost increasing sequences. Also, some new results ... 
A new subclass of uniformly spirallike functions with fixed coefficients
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper a new subclass of uniformly spirallike functions is defined and several properties like coefficient estimate, closure theorems, distortion theorems, radii of starlikeness and convexity are studied. 
A note on dominator chromatic number of line graph and jump graph of some graphs
(Ankara Üniversitesi Fen Fakültesi, 20190801)A dominator coloring is a coloring of the vertices of a graph such that every vertex is either alone in its color class or adjacent to all vertices of at least one other color class. In this paper, we obtain the dominator ... 
A note on harmonic maps of statistical manifolds
(Ankara Üniversitesi Fen Fakültesi, 20190801)We show an existence and uniqueness result for a class of maps from a flat statistical manifold into a Riemannian manifold in a given homotopy class when the target Riemannian manifold is of negative sectional curvature ... 
A numerical solution study on singularly perturbed convectiondiffusion nonlocal boundary problem
(Ankara Üniversitesi Fen Fakültesi, 20190801)This important numerical method is given for the numerical solution of singularly perturbed convectiondiffusion nonlocal boundary value problem. First, the behavior of the exact solution is analyzed, which is needed for ... 
A simulation study of the Bayes estimator for parameters in Weibull distribution
(Ankara Üniversitesi Fen Fakültesi, 20190801)The Weibull distribution is one of the most popular distributions in analyzing the lifetime data. In this study, we consider the Bayes estimators of the scale and shape parameters of Weibull distribution under the assumptions ... 
Algebraic structure of square matrices over residuated lattices
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper, we introduce the algebra Mnn(L) of square matrices over residuated lattice L. The operations are induced by the corresponding operations of L. It is shown that the defined algebra behaves like a residuated ... 
Algorithmic approach of cordial labeling on Cartesian product between balanced bipartite graph and path
(Ankara Üniversitesi Fen Fakültesi, 20190801)Cordial labeling is one of the useful labeling in the realm of graph labeling. For the graph G=(V,E) vertex set V is label by {0,1}, where labeling of edge set E calculated by absolute difference between the end vertices ... 
(alpha,m1,m2)convexity and some inequalities of HermiteHadamard type
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper, we introduce a new class of extended (alpha;m1;m2)convex functions. Some algebraic properties of these class functions have been investigated. Some new HermiteHadamard type inequalities are derived. Results ... 
An almost orthosymmetric bilinear map
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper, as a generalization of the concept of pseudoalmost falgebra, we define a new concept of almost orthosymmetric bilinear map on a vector lattice and prove that the Arens triadjoint of a positive almost ... 
Approximately gammarings in proximal relator spaces
(Ankara Üniversitesi Fen Fakültesi, 20190801)This article introduces approximately gammarings, approximately gamma ideals and approximately gammarings of all descriptive approximately cosets by considering new operations on the set of all descriptive approximately ... 
Approximation by Nörlund and Riesz means in weighted Lebesgue space with variable exponent
(Ankara Üniversitesi Fen Fakültesi, 20190801)We investigate the approximation properties of Nörlund and Riesz means of trigonometric Fourier series are investigated in the subset of weighted Lebesgue space with variable exponent. 
Approximation properties of BernsteinKantorovich type operators of two variables
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this study, the generalized BernsteinKantorovich type operators are introduced and some approximation properties of these operators are studied in the space of continuous functions of two variables on a compact set ... 
Approximation properties of modified qBernsteinKantorovich operators
(Ankara Üniversitesi Fen Fakültesi, 20190801)In the present paper we define a qanalogue of the modified BernsteinKantorovich operators introduced by Ozarslan and Duman (Numer. Funct. Anal. Optim. 37:92105,2016). We establish the shape preserving properties of ... 
Automatic structure for generalized BruckReilly ∗extension of a monoid
(Ankara Üniversitesi Fen Fakültesi, 20190801)In the present paper, we study the automaticity of generalized BruckReilly ∗extension of a monoid. Under some certain situations, we prove that the automaticity of the monoid implies the automaticity of the generalized ... 
Baues cofibration for quadratic modules of Lie algebras
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper; free quadratic modules and totally free ojects in the category of quadratic modules consructed over Lie algebras. We use the free quadratic modules of Lie algebras to show that the category quadratic module ... 
Cclass functions on some coupled fixed point theorems in partially ordered Smetric spaces
(Ankara Üniversitesi Fen Fakültesi, 20190801)In this paper, we prove fixed point results employing mixed weakly monotone maps, Cclass functions and altering distance function in the framework of Smetric space. Here, integral application has additionally been given. 
C^{∗}algebravalued rectangular bmetric spaces and some fixed point theorems
(Ankara Üniversitesi Fen Fakültesi, 20190801)The concept of C^{∗}algebravalued rectangular bmetric spaces is introduced as a generalization of C^{∗}algebravalued bmetric spaces. An analogue of Banach contraction principle and Kannan's fixed point theorem is ...