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Toplam kayıt 68, listelenen: 1-20

    • Generalized fuzzy subhyperspaces based on fuzzy points 

      Dehghan, Omid Reza; Norouzi, M. (Ankara Üniversitesi Fen Fakültesi, 2019-06-30)
      We define (∈,∈∨q^{δ})-fuzzy subhyperspaces and (∈,∈∨q_{k}^{δ})-fuzzy subhyperspaces, as a generalization of fuzzy subhyperspaces, (∈,∈∨q)-fuzzy subhyperspaces and (∈,∈∨q_{k})-fuzzy subhyperspaces. In this way, we show that ...
    • Study of a generalized Riemann-Liouville fractional integral via convex functions 

      Farid, Ghulam (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper estimations in general form of sum of left and right sided Riemann-Liouville (RL) fractional integrals for convex functions are studied. Also some similar fractional inequalities for functions whose derivatives ...
    • Approximate test for testing a null variance ratio in the Unbalanced One-Way Random Model 

      Güven, Bilgehan; Demircioğlu, Sevgi (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      The approximate test for testing the signicance of the random effect is presented in the unbalanced one-way random model in which both random effects and errors are from non-normal universes. The test is based on the ...
    • A new family of lifetime distributions in terms of cumulative hazard rate function 

      Kharazmi, Omid; Jahangard, Shahla (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In the present paper, a new family of lifetime distributions is introduced according to cumulative hazard rate function, the well-known concept in survival analysis and reliability engineering. Some important properties ...
    • Spectral properties of the second order difference equation with selfadjoint operator coefficients 

      Mutlu, Gökhan (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper, we consider the second order difference equation defined on the whole axis with selfadjoint operator coefficients. The main objective of this study is to obtain the continuous and discrete spectrum of the ...
    • Some new results on convergence, stability and data dependence in n-normed spaces 

      Doğan, Kadri; Gürsoy, Faik; Karakaya, Vatan; Khan, Safeer Hussain (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      We introduce a new contractive condition and a new iterative method in n0normed space setting. We employ both of these to study convergence, stability, and data dependence. The results presented here extend and improve ...
    • Compactness and stability in diframes 

      Korkmaz, Esra; Ertürk, Rıza (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      The concept of diframe was introduced as a generalization of ditopological texture spaces. The purpose of this paper is to present the results of a study on the concepts of compactness and stability in the setting of ...
    • Further inequalities for the generalized k-g-fractional integrals of functions with bounded variation 

      Dragomir, Sever (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      Let g be a strictly increasing function on (a,b), having a continuous derivative g′ on (a,b). For the Lebesgue integrable function f:(a,b)→C, we define the k-g-left-sided fractional integral of f by S_{k,g,a+}f(x)=∫_ ...
    • Generalized fractional maximal operator on generalized local Morrey spaces 

      Küçükaslan, Abdulhamit; Guliyev, Vagif S.; Şerbetci, Ayhan (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper, we study the boundedness of generalized fractional maximal operator on generalized local Morrey spaces and generalized Morrey spaces, including weak estimates. Firstly, we prove the Spanne type boundedness ...
    • A space-time discontinuous Galerkin method for linear hyperbolic PDE's with high frequencies 

      Toprakseven, Şuayip (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      The main purpose of this paper is to describe a space-time discontinuous Galerin (DG) method based on an extended space-time approximation space for the linear first order hyperbolic equation that contains a high frequency ...
    • Estimation of population mean under different stratified ranked set sampling designs with simulation study application to BMI data 

      Çetin, Arzu Ece; Koyuncu, Nursel (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this article, we have compared the performance ratio-type estimators in some stratified ranked set sampling methods. These sampling methods are stratified random sampling, stratified ranked set sampling, stratified ...
    • Equivalence conditions of two systems of vectors in the taxicab plane and its applications to taxicab polygons 

      Ören, İdris; Çoban, Hüsnü Anıl (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      This study presents the conditions of M_{T}(2)-equivalence for two systems of vectors {x₁,x₂,x₃} and {y₁,y₂,y₃} in R_{T}², where M_{T}(2) is the group of all isometries of the 2-dimensional taxicab space R_{T}². Firstly a ...
    • The relatively osculating developable surfaces of a surface along a direction curve 

      Ünlütürk, Yasin; Abdel-Baky, Rashad (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      We construct a developable surface tangent to a surface along a curve on the surface. We call this surface as relatively osculating developable surface. We choose the curve as the tangent normal direction curve on which ...
    • Asymptotic behaviour of resonance eigenvalues of the Schrödinger operator with a matrix potential 

      Akduman, Setenay; Karakılıç, Sedef; Coşkan, Didem (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      We will discuss the asymptotic behaviour of the eigenvalues of a Schrödinger operator with a matrix potential defined by the Neumann boundary condition in L₂^{m}(F), where F is a d-dimensional rectangle and the potential ...
    • Decomposition of soft continuity via soft locally b-closed set 

      Demirtaş, Naime; Ergül, Zehra Güzel (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper, we introduce soft locally b-closed sets in soft topological spaces which are defined over an initial universe with a fixed set of parameters and study some of their properties. We investigate their relationships ...
    • SS-supplemented modules 

      Kaynar, Ali; Türkmen, Ergül; Çalışıcı, Hamza (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      A module M is called ss-supplemented if every submodule U of M has a supplement V in M such that U(intersection) V is semisimple. It is shown that a finitely generated module M is ss-supplemented if and only if it is ...
    • Lie ideals and Jordan triple (α,β)-derivations in rings 

      Söğütcü, Emine Koç; Rehman, Nadeem Ur (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper we prove that on a 2-torsion free semiprime ring R every Jordan triple (α,β)-derivation (resp. generalized Jordan triple (α,β)-derivation) on Lie ideal L is an (α,β)-derivation on L (resp. generalized ...
    • LCN-translation surfaces in affine 3-space 

      Karacan, Murat Kemal; Yüksel, Nuran; Tunçer, Yılmaz (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In this paper, we give the classification of the LCN-translation surfaces with zero mean curvature and zero Gaussian curvature in 3-dimensional Affine space.
    • On the K_{a}-continuity of real functions 

      Yıldız, Sevda; Demirci, Kamil; Dirik, Fadime (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      The aim of the present paper is to define K_{a}-continuity which is associated to the number sequence a=(a_{n}) and to give some new results.
    • Simple criteria for univalence and coefficient bounds for a certain subclass of analytic functions 

      Jafari, Mostafa; Bulboaca, Teodor; Zireh, Ahmad; Adegani, Ebrahim Analouei (Ankara Üniversitesi Fen Fakültesi, 2020-06-30)
      In the first part of this work we present several new geometric properties of analytic functions by applying the differential subordination. In addition, several results in the geometric functions theory pointed out. In ...