Browsing Cilt:68 Sayı:01 (2019) by Title
Now showing items 1837 of 98

Best bound for λ pseudo starlike functions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we obtain sharp upper bound to the second Hankel determinant for the functions belong to the class of λ pseudo starlike functions, an interesting sub class of univalent functions defined in the open unit ... 
BinomialDiscrete Lindley Distribution
(Ankara Üniversitesi, 20190201)In this paper, a new discrete distribution called BinomialDiscrete Lindley (BDL) distribution is proposed by compounding the binomial and discrete Lindley distributions. Some properties of the distribution are discussed ... 
Bounds for initial MacLaurin coefficients of a subclass of biunivalent functions associated with subordination
(Ankara Üniversitesi, 20190201)In this paper, we investigate the bounds of the coefficients for new subclasses of analytic and biunivalent functions in the open unit disc defined by subordination. The coefficients bounds presented in this paper would ... 
Certain New HermiteHadamard Type Inequalities for Convex Functions Via Fractional Integrals
(Ankara Üniversitesi, 20190201)The object of this paper is to obtain certain HermiteHadamard type integral inequalities involving general class of fractional integral operators and the fractional integral operators with exponential kernel by using ... 
Classical Way of Looking at the LaneEmden Equation
(Ankara Üniversitesi, 20190201)In this article, the wellknown approximate and analytical solutions of the LaneEmden equation applying Taylor series expansion are derived. To the best of author's knowledge nobody has overcome the singularity of the ... 
Coefficient estimates for biconcave functions
(Ankara Üniversitesi, 20190201)In this study,a new class C_{Σ}^{p,q}(α) of analytic and biconcave functions were presented in the open unit disc. The coefficients estimates on the first two TaylorMaclaurin coefficients a₂ and a₃ were found for ... 
Coefficient estimates for certain subclass of meromorphic and biunivalent functions
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we introduce and investigate an interesting subclass of meromorphic and biunivalent functions on Δ={z∈C :1 <z<∞}. Furthermore, for functions belonging to this class, estimates on the initial coefficients ... 
Complete system of invariants of vectors for isometry group in ndımensional unitary space
(Ankara Üniversitesi, 20190201)In this study, invariants of vector systems for isometry group are investigated. The complete system of invariants of vectors for isometry group in ndimensional unitary space is obtained and it is shown that this complete ... 
Derivatives of Sasakian metric ^{S}g on Cotangent Bundle
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper, we define a Sasakian metric ^{S}g on cotangent bundle T^{∗}Mⁿ, which is completely determined by its action on complete lifts of vector fields. Later, we obtain the covariant and Lie derivatives applied to ... 
Determining the most vital arcs on the shortest path for fire trucks in terrorist actions that will cause fire
(Ankara Üniversitesi, 20190201)In case of fire, the supplying of the water requirements of the fire area is a vital issue. The water requirements must be satisfied as quickly as possible without encountering any obstacles. In the study, once a terrorist ... 
Eigenvalues and scattering properties of difference operators with impulsive condition
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this work, we are concerned with difference operator of second order with impulsive condition. By the help of a transfer matrix M, we present scattering function of corresponding operator and examine the spectral ... 
Estimation of the location and the scale parameters of Burr Type XII distribution
(Ankara Üniversitesi Fen Fakültesi, 20190201)The aim of this paper is to estimate the location and the scale parameters of Burr Type XII distribution. For this purpose, different estimation methods, namely, maximum likelihood (ML), modified maximum likelihood (MML), ... 
Existence of solution to a nonlocal conformable fractional thermistor problem
(Ankara Üniversitesi Fen Fakültesi, 20190201)We study a nonlocal thermistor problem for fractional derivatives in the conformable sense. Classical Schauder's fixed point theorem is used to derive the existence of a tube solution. 
Fixed point results for Fexpansive mappings in ordered metric spaces
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this article, we prove some existence and uniqueness fixed point results for Fexpansive mappings in partially ordered metric spaces. We support the usability of our results adopting suitable examples. 
Fixed point theorems for single valued αψmappings in fuzzy metric spaces
(Ankara Üniversitesi, 20190201)This article is the forward result of αadmissible 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 ... 
Flat Strong δcovers of Modules
(Ankara Üniversitesi, 20190201)We say that a ring R is right generalized δsemiperfect if every simple right Rmodule is an epimorphic image of a flat right Rmodule with δsmall kernel. This definition gives a generalization of both right δsemiperfect ... 
Further study on the results of Sheremeta
(Ankara Üniversitesi Fen Fakültesi, 20190201)In this paper we estimate some growth rates of composite entire and meromorphic functions in the light of their relative (p,q)th order and relative (p,q)th lower order which considerably extend some results of Sheremeta [14]. 
Generalization of (αF_{d})contraction on quasimetric space
(Ankara Üniversitesi, 20190201)In this paper, we introduce the concept of generalized (αF_{d})contraction and give some fixed point results in quasi metric spaces with different types of completeness. 
Global behavior of a threedimensional system of difference equations of order three
(Ankara Üniversitesi, 20190201)In this paper, we investigate the global behavior of the positive solutions of the system of difference equations u_{n+1}=((α₁u_{n1})/(β₁+γ₁v_{n2}^{p})), v_{n+1}=((α₂v_{n1})/(β₂+γ₂w_{n2}^{q})), w_{n+1}=((α₃w_{n1 ... 
Growth estimates of entire functions with the help of their relative L^{∗}types and relative L^{∗} weak types
(Ankara Üniversitesi, 20190201)In this paper we attempt to prove some results related to the growth rates of entire functions on the basis of relative L^{∗}type and relative L^{∗}weak type of an entire function with respect to another entire function.