Başlık için Cilt:70 Sayı:01 (2021) listeleme
Toplam kayıt 40, listelenen: 1-20
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A classification of ( k , μ ) ′ -almost Kenmotsu manifolds admitting Cotton tensor
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The object of the present paper is to classify ( k , μ ) ′ -almost Kenmotsu manifolds admitting Cotton tensors. We characterize ( k , μ ) ′ -almost Kenmotsu manifolds with vanishing and parallel Cotton ... -
A metric formula on a quotient space which is related to the sequence space Σ 2
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we first define an equivalence relation on the sequence space Σ 2 . Then we equip the quotient set Σ 2 / ∼ with a metric d 1 . We also determine an isometry map between the metric spaces ... -
A new lifetime distribution: transmuted exponential power distribution
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this study, a new statistical distribution called as Transmuted Exponential Power distribution using the quadratic rank transmutation map introduced by Shaw and Buckley [23,24] is suggested. The various mathematical and ... -
A study on the modeling and simulation for the motor unit action potential
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)Electromyography (EMG) is a technique that gives information about the neuromuscular pattern and function which is commonly-used in the practice of neurology. With this method, the signals obtained from the muscle cells ... -
An approach for designing a surface pencil through a given geodesic curve
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In the present paper, we propose a new method to construct a surface interpolating a given curve as the geodesic curve of it. Also, we analyze the conditions when the resulting surface is a ruled surface. In addition, ... -
Best proximity point theorems for proximal b-cyclic contractions on b-metric spaces
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we first introduce a new notion of the property (M_{C}) to improve and generalize the property (G_{C}). After that, we present two new concepts, proximal b-cyclic contraction of first type and second type, ... -
Best proximity point theory on vector metric spaces
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we first give a new definition of Ω-Dedekind complete Riesz space (E,≤) in the frame of vector metric space (Ω,ρ,E) and we investigate the relation between Dedekind complete Riesz space and our new concept. ... -
Bipolar fuzzy soft D-metric spaces
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The first aim to this paper is to introduce the notions of bipolar fuzzy soft metric space and bipolar fuzzy soft (D-)metric space. In order to define these concepts, the concept of bipolar fuzzy soft points has been brought ... -
Bivariate Bernstein polynomials that reproduce exponential functions
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we construct Bernstein type operators that reproduce exponential functions on simplex with one moved curved side. The operator interpolates the function at the corner points of the simplex. Used function ... -
Bootstrap based multi-step ahead joint forecast densities for financial interval-valued time series
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)This study presents two interval-valued time series approaches to construct multivariate multi-step ahead joint forecast regions based on two bootstrap algorithms. The first approach is based on fitting a dynamic bivariate ... -
Change-constrained stochastic programming problem with normal, t and skew normal, skew t distributions
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, a change constrained optimization programming problem is studied under the assumption that the model coe¢ cients in the inequalities defned as random variables are independent and assumed to be Normal, t; ... -
Chebyshev type inequalities with fractional delta and nabla h-sum operators
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The aim of this study is to establish new discrete inequalities for synchronous functions using fractional order delta and nabla h-sum operators. We give examples to illustrate our results. -
Deferred Nörlund statistical relative uniform convergence and Korovkin-type approximation theorem
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we define the concept of statistical relative uniform convergence of the deferred Nörlund mean and we prove a general Korovkin-type approximation theorem by using this convergence method. As an application, ... -
Determination of a time-dependent potential in a Rayleigh-Love equation with non-classical boundary condition
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)Mathematical model of the longitudinal vibration of bars includes higher-order derivatives in the equation of motion under considering the effect of the lateral motion of a relatively thick bar. This paper considers such ... -
Differential geometric aspects of nonlinear Schrödinger equation
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The main scope of this paper is to examine the smoke ring (or vortex filament) equation which can be viewed as a dynamical system on the space curve in E³. The differential geometric properties the soliton surface accociated ... -
Dual-complex generalized k-Horadam numbers
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The purpose of this paper is to provide a broad overview of the generalization of the various dual-complex number sequences, especially in the disciplines of mathematics and physics. By the help of dual numbers and ... -
Existence and decay of solutions for a higher-order viscoelastic wave equation with logarithmic nonlinearity
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The main goal of this paper is to study for the local existence and decay estimates results for a high-order viscoelastic wave equation with logarithmic nonlinerity. We obtain several results: Firstly, by using Feado-Galerkin ... -
Green's function for impulsive periodic solutions in alternately advanced and delayed differential systems and applications
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper we investigate the existence of the periodic solutions of a nonlinear impulsive differential system with piecewise alternately advanced and retarded arguments, in short IDEPCAG, that is, the argument is a ... -
Hermite-Hadamard-Fejér inequalities for double integrals
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)In this paper, we first obtain Hermite-Hadamard-Fejer inequalities for co-ordinated convex functions in a rectangle from the plane R2. Moreover, we give the some refinement of these obtained Hermite-Hadamard-Fejer inequalities ... -
Implementation of computation formulas for certain classes of Apostol-type polynomials and some properties associated with these polynomials
(Ankara Üniversitesi Fen Fakültesi, 2021-06-30)The main purpose of this paper is to present various identities and computation formulas for certain classes of Apostol-type numbers and polynomials. The results of this paper contain not only the λ -Apostol-Daehee ...