sherpa/romeo

Now showing items 1-20 of 87

    • [1,2]-Complementary connected domination number of graphs-III 

      Mahadevan, G.; Renuka, K. (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      A set S⊆V(G) in a graph G is said to be [1,2]-complementary connected dominating set if for every vertex v∈V-S, 1≤|N(v)∩S|≤2 and <V-S> is connected. The minimum cardinality of [1,2]-complementary connected dominating set ...
    • A mathematical model of Hepatitis B transmission in Turkey 

      Gölgeli, Meltem (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 

      Yıldız, Şebnem (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In this paper, a known theorem dealing with weighted mean summability methods of non-decreasing 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 

      Balachandar, Geetha (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 

      Kalaivani, R.; Vijayalakshmi, D. (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 

      Şimşir, Fatma Muazzez (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 convection-diffusion nonlocal boundary problem 

      Arslan, Derya; Çakır, Musa (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      This important numerical method is given for the numerical solution of singularly perturbed convection-diffusion nonlocal boundary value problem. First, the behavior of the exact solution is analyzed, which is needed for ...
    • Algebraic structure of square matrices over residuated lattices 

      Saeid, Arsham Borumand; Eslami, E.; Balaei, S. (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 

      Ghosy, Sumonta; Pal, Anita (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 Hermite-Hadamard type 

      Kadakal, Huriye (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 Hermite-Hadamard type inequalities are derived. Results ...
    • An almost orthosymmetric bilinear map 

      Yılmaz, Ruşen (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In this paper, as a generalization of the concept of pseudo-almost f-algebra, 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 gamma-rings in proximal relator spaces 

      Uçkun, Mustafa (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      This article introduces approximately gamma-rings, approximately gamma- ideals and approximately gamma-rings 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 

      Testici, Ahmet (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 Bernstein-Kantorovich type operators of two variables 

      Karahan, Döne; İzgi, Aydın (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In this study, the generalized Bernstein-Kantorovich 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 q-Bernstein-Kantorovich operators 

      Acu, Ana Maria; Agrawal, Purshottam; Kumar, Dharmendra (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In the present paper we define a q-analogue of the modified Bernstein-Kantorovich operators introduced by Ozarslan and Duman (Numer. Funct. Anal. Optim. 37:92-105,2016). We establish the shape preserving properties of ...
    • Automatic structure for generalized Bruck-Reilly ∗-extension of a monoid 

      Karpuz, Eylem Güzel (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In the present paper, we study the automaticity of generalized Bruck-Reilly ∗-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 

      Yılmaz, Koray; Yılmaz, Elis Soylu (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      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 ...
    • C-class functions on some coupled fixed point theorems in partially ordered S-metric spaces 

      Gupta, Vishal; Ansari, Arslan Hojat; Mani, Naveen (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In this paper, we prove fixed point results employing mixed weakly monotone maps, C-class functions and altering distance function in the framework of S-metric space. Here, integral application has additionally been given.
    • C^{∗}-algebra-valued rectangular b-metric spaces and some fixed point theorems 

      Kalpana, G.; Tasneem, Z. Sumaiya (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      The concept of C^{∗}-algebra-valued rectangular b-metric spaces is introduced as a generalization of C^{∗}-algebra-valued b-metric spaces. An analogue of Banach contraction principle and Kannan's fixed point theorem is ...
    • Certain subclasses of bi-univalent functions related to k-Fibonacci numbers 

      Güney, Özlem H.; Murugusundaramoorthy, G.; Sokol, Janusz (Ankara Üniversitesi Fen Fakültesi, 2019-08-01)
      In this paper, we introduce and investigate new subclasses of bi-univalent functions related to k-Fibonacci numbers. Furthermore, we nd estimates of first two coecients of functions in these classes. Also, we obtain the ...