sherpa/romeo

Toplam kayıt 98, listelenen: 1-20

    • Smarandache Curves According to Sabban Frame Belonging to Mannheim Curves Pair 

      Şenyurt, Süleyman; Altun, Yasin; Cevahir, Ceyda (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 

      FARİED, Nashat; ALİ, Mohamed S. S; YEHİA, Zeinab M. (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 Ramsay-Novick Distributed Errors with Student-t Prior 

      Arslan, Olcay; Çankaya, Emel; Kaya, Mutlu (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 so-called heavy-tailed ...
    • On the stochastic restricted Liu-type maximum likelihood estimator in logistic regression model 

      Asar, Yasin; Wu, Jibo (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      In order to overcome multicollinearity, we propose a stochastic restricted Liu-type maximum likelihood estimator by incorporating Liu-type maximum likelihood estimator to the logistic regression model when the linear ...
    • Wavelet estimation of semiparametric errors in variables model 

      Yalaz, Seçil (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 bi-univalent functions 

      Hajiparvaneh, Saideh; ZİREH, Ahmad (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      In this paper, we introduce and investigate an interesting subclass of meromorphic and bi-univalent 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 

      Karakuş, Siddika Özkaldı (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      In this paper we study surfaces in H²×R for which the unit normal makes a constant angle with the R-direction. The main idea is to show that constant angle surfaces in H²×R can be obtained by split quaternion product and ...
    • On almost α-para-Kenmotsu manifolds satisfyıng certain conditions 

      Erken, İrem Küpeli (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      In this paper, we study some remarkable properties of almost α-para-Kenmotsu manifolds. We consider projectively flat, conformally flat and concircularly flat almost α-para-Kenmotsu manifolds (with the η-parallel tensor ...
    • Iterated bootstrap procedure in individual bioequivalence 

      Beyaztaş, Ufuk (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 

      Şahan, Tunçar; Erciyes, Ayhan (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 well-known notions such as covering groupoids and groupoid operations ...
    • Approximately Groups in Proximal Relator Spaces 

      İnan, Ebubekir (Ankara Üniversitesi Fen Fakültesi, 2019-02-01)
      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 Korteweg--de Vries Equation and Its Stability Analysis 

      Yokuş, Asıf (Ankara Üniversitesi, 2019-02-01)
      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 Klein-Gordon equation by exponential cubic B-spline collocation method 

      Hepson, Özlem Ersoy; Korkmaz, Alper; Dağ, Alper (Ankara Üniversitesi, 2019-02-01)
      In the present study, we solve initial boundary value problem constructed on nonlinear Klein-Gordon equation. The collocation method on exponential cubic B-spline functions forming a set of basis for the functions defined ...
    • α-inclusions applied to group theory via soft set and logic 

      Sezgin, Aslıhan; Çağman, Naim; Çıtak, Filiz (Ankara Üniversitesi, 2019-02-01)
      Soft set theory, initiated by Molodtsov, is a tool for modeling various types of uncertainty. In this paper, upper and lower α-inclusions of a soft set are defined. By using these new notions, some analyzes with respect ...
    • Binomial-Discrete Lindley Distribution 

      Kuş, Coşkun; AKdoğan, Yunus; Kınacı, İsmail; Karakaya, Kadir; ASGHARZADEH, Akbar (Ankara Üniversitesi, 2019-02-01)
      In this paper, a new discrete distribution called Binomial-Discrete Lindley (BDL) distribution is proposed by compounding the binomial and discrete Lindley distributions. Some properties of the distribution are discussed ...
    • Asymptotic Behavior of the Non-Autonomous Reaction-Diffusion Equation with Robin Boundary Condition 

      Öztürk, Eylem (Ankara Üniversitesi, 2019-02-01)
      In this paper, we investigate the long-time behavior of the time-dependent reaction-diffusion equation u_{t}-Δu+a(x)|u|^{ρ}u-b(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 

      Meral, Gülnihal; Yamanlar, İbrahim Çağatay (Ankara Üniversitesi, 2019-02-01)
      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 α-ψ-mappings in fuzzy metric spaces 

      GUPTA, Vishal; SAİNİ, R. K.; VERMA, Manu (Ankara Üniversitesi, 2019-02-01)
      This article is the forward result of α-admissible 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 ...
    • Quasi-Sasakian Structures on 5-dimensional Nilpotent Lie Algebras 

      Özdemir, Nilüfer; Aktay, Şirin; Solgun, Mehmet (Ankara Üniversitesi, 2019-02-01)
      In this study, we examine the existence of quasi-Sasakian structures on nilpotent Lie algebras of dimension five. In addition, we give some results about left invariant quasi-Sasakian structures on Lie groups of dimension ...
    • Complete system of invariants of vectors for isometry group in n-dımensional unitary space 

      Çoban, Hüsnü Anıl (Ankara Üniversitesi, 2019-02-01)
      In this study, invariants of vector systems for isometry group are investigated. The complete system of invariants of vectors for isometry group in n-dimensional unitary space is obtained and it is shown that this complete ...