Başlık için Cilt:69 Sayı:02 (2020) listeleme
Toplam kayıt 47, listelenen: 1-20
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A common fixed point theorem for multi-valued θ_{δ} contractions via subsequential continuity
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)The main objective of this paper is to present a common fixed point theorem for two pairs of single and set valued mappings via subsequential continuity and \delta- compatibility. To illustrate the validity of our results, ... -
A comparative study on the performance of frequentist and Bayesian estimation methods under separation in logistic regression
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)Separation is one of the most commonly encountered estimation problems in the context of logistic regression, which often occurs with small and medium sample sizes. The method of maximum likelihood (MLE; Fisher) provides ... -
A new class of generating functions of binary products of Gaussian numbers and polynomials
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In this paper, we introduce a operator in order to derive some new symmetric properties of Gaussian Fibonacci numbers and Gaussian Lucas numbers. By making use of the operator defined in this paper, we give some new ... -
A new generalized-upper record values-G family of lifetime distributions
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)A new family of lifetime distributions is introduced via distribution of the upper record values, the well-known concept in survival analysis and reliability engineering. Some important properties of the proposed model ... -
A note on quasi bi-slant submanifolds of cosymplectic manifolds
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)The aim of the present paper is to define and study the notion of quasi bi-slant submanifolds of almost contact metric manifolds. We mainly concerned with quasi bi-slant submanifolds of cosymplectic manifolds as a ... -
A solution of a viscosity Cesàro mean algorithm
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)Based on the viscosity approximation method, we introduce a new cesaro mean approximation method for finding a common solution of split generalized equilibrium problem in real Hilbert spaces. Under certain conditions control ... -
A subclass of pseudo-type meromorphic bi-univalent functions
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In this paper, In the present article, a new subclass of pseudo-type meromorphic bi-univalent functions is defined on △={z |:z∈C and 1<|z|<∞}, we derive estimates on the initial coefficient |b₀|, |b₁| and |b₂|. Relevant ... -
A-statistically localized sequences in n-normed spaces
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In 1974, Krivonosov defined the concept of localized sequence that is defined as a generalization of Cauchy sequence in metric spaces. In this present work, the A-statistically localized sequences in n-normed spaces are ... -
Almost contact metric and metallic Riemannian structures
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)The metallic structure is a fascinating topic that continually generates new ideas. In this work, new metallic manifolds are constructed starting from both almost contact metric manifolds and we obtain some important notions ... -
An adaptive extended Kalman filtering approach to nonlinear dynamic gene regulatory networks via short gene expression time series
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)Gene regulation is one of the most amazing processes in which living cells are involved. Different genes may cooperate to produce a particular reaction if more than one genes are suppressed by a gene. The gene triggers a ... -
An approach to pre-separation axioms in neutrosophic soft topological spaces
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In this study, we introduce the concept of neutrosophic soft pre-open (neutrosophic soft pre-closed) sets and pre-separation axioms in neutrosophic soft topological spaces. In particular, the relationship between these ... -
Analysis of fractional differential systems involving Riemann Liouville fractional derivative
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)This paper is devoted to studying the multiple positive solutions for a system of nonlinear fractional boundary value problems. Our analysis is based upon the Avery Peterson fixed point theorem. In addition, we include an ... -
Annihilators of power values of b-generalized derivations in prime rings
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)Let R be a prime ring with extended centroid C and maximal left ring of quotients Q m l ( R ) . For a nonzero element b ∈ R let F : R → R be a right generalized b -derivation associated ... -
Approximation by Bézier variant of Jakimovski-Leviatan-Păltănea operators involving Sheffer polynomials
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In the present paper, the Bezier variant of Jakimovski-Leviatan-Peltenea operators involving Sheffer polynomials is introduced and the degree of approximation by these operators is investigated with the aid of Ditzian-Totik ... -
Best proximity problems for new types of Z -proximal contractions with an application
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In this study, we establish existence and uniqueness theorems of best proximity points for new types of Z -proximal contractions defined on a complete metric space. The presented results improve and generalize some ... -
Digital Hausdorff distance on a connected digital image
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)A digital image X can be considered as a subset of Zⁿ together with an adjacency relation where Z is the set of the integers and n is a natural number. The aim of this study is to measure the closeness of two subsets of a ... -
Equitable edge coloring on tensor product of graphs
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)A graph G is edge colored if different colors are assigned to its edges or lines, in the order of neighboring edges are allotted with least diverse k-colors. If each of k-colors can be partitioned into color sets and differs ... -
Fractional variational problems on conformable calculus
(Ankara Üniversitesi, 2021)In this paper, we deal with the variational problems defined by an integral that include fractional conformable derivative. We obtained the optimality results for variational problems with fixed end-point boundary conditions ... -
Harary energy of complement of line graphs of regular graphs
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)The Harary matrix of a graph G is defined as H ( G ) = [ h i j ] , where h i j = 1 d ( v i , v j ) , if i ≠ j and h i j = 0 , otherwise, where d ( v i , v j ) is the ... -
Invariant submanifolds in golden Riemannian manifolds
(Ankara Üniversitesi Fen Fakültesi, 2020-12-31)In this paper, we study invariant submanifolds of a golden Riemannian manifold with the aid of induced structures on them by the golden structure of the ambient manifold. We demonstrate that any invariant submanifold in a ...
