Browsing Cilt:68 Sayı:01 (2019) by Title
Now showing items 75-94 of 98
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Parafree metabelian Lie algebras which are determined by parafree Lie algebras
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)Let L be a Lie algebra. Denote by δ^{k}(L) the k-th term of the derived series of L and by Δ_{w}(L) the intersection of the ideals I of L such that L/I is nilpotent. We prove that if P is a parafree Lie algebra, then the ... -
Pseudo projective curvature tensor satisfying some properties on a normal paracontact metric manifold
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In the present paper we have studied the curvature tensor of a normal paracontact metric manifold satisfying the conditions R(ξ,X)P=0, P(ξ,X)R=0, P(ξ,X)P=0, P(ξ,X)S=0, P(ξ,X)Z=0 and pseudo projective flatness, where R, P, ... -
Quasi 2-absorbing second modules
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper, we will introduce the notion of quasi 2-absorbing second modules over a commutative ring and obtain some basic properties of this class of modules. -
Quasi-Sasakian Structures on 5-dimensional Nilpotent Lie Algebras
(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 ... -
Quasi-subordination and coefficient bounds for certain classes of meromorphic functions of complex order
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper, we obtain Fekete-Szegö functional |a₁-μa₀²| for functions of the classes Σ_{q}^{∗}(ϕ) and Σ_{q,λ,b}^{∗}(g,ϕ) using quasi-subordination. Sharp bounds for the Fekete-Szegö functional |a₁-μa₀²| are obtained. ... -
Relative controllability results for nonlinear higher order fractional delay integrodifferential systems with time varying delay in control
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)This paper is concerned with the controllability of nonlinear higher order fractional delay integrodifferential equations with time varying delay in control, which involved Caputo derivatives of any different orders. A ... -
Reviving some geometric aspects of shrinkage estimation in linear models
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)It is well known that the least squares estimator is the best linear unbiased estimator of the parameter vector in a classical linear model. But, it is `too long' as a vector and unreliable, confidence intervals are broad ... -
Robust Bayesian Regression Analysis Using Ramsay-Novick Distributed Errors with Student-t Prior
(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 ... -
Smarandache Curves According to Sabban Frame Belonging to Mannheim Curves Pair
(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 ... -
Smarandache Curves in three dimensional Lie groups
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper, we introduce special Smarandache curves and obtain Frenet apparatus of a Smarandache curve in three dimensional Lie groups with a bi-invariant metric. Moreover, we give some relations between a helix or a ... -
Solutions of the radial Schrödinger equation in hypergeometric and discrete fractional forms
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)The purpose of this present paper is to obtain the hypergeometric and discrete fractional solutions of the radial Schrödinger equation by using the nabla discrete fractional calculus operator. -
Some Caputo K-Fractional Derivatives of Ostrowski Type Concerning (n + 1)-Differentiable Generalized Relative Semi-(r; m; p; q; h1; h2)-Preinvex Mappings
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this article, we first presented some integral inequalities for Gauss-Jacobi type quadrature formula involving generalized relative semi-(r;m,p,q,h₁,h₂)-preinvex mappings. And then, a new identity concerning ... -
Some Geometric Characterizations of a Fractional Banach Set
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)This paper is devoted to investigate the modular structure of a fractional Banach set of sequences and prove that this set is reflexive and convex and it possesses uniform Opial, (β), (L) and (H) properties. The convexity ... -
Some inequalities for positive multilinear mappings
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper we obtain some improvements and generalizations of inequalities for positive multilinear mappings. -
Some new d-orthogonal polynomial sets of Sheffer type
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper, we present some new Sheffer type d-orthogonal polynomial sets. Moreover, we obtain the d-dimensional functional vector ensuring the d-orthogonality of these new polynomial sets. -
Stability of the Reconstruction Discontinuous Sturm-Liouville Problem
(Ankara Üniversitesi, 2019-02-01)In this work, we study stability of the inverse spectral problem for the Sturm-Liouville operator -D²+q with discontinuity boundary conditions inside a finite closed interval. We use the method which is given by Ryabushko ... -
Stabilized FEM Solutions of MHD Equations Around a Solid and Inside a Conducting Medium
(Ankara Üniversitesi, 2019-02-01)In this study, the numerical solution of the magnetohydrodynamic (MHD) flow is considered in a circular pipe around a conducting solid and in an insulating or conducting medium. An external magnetic field is applied through ... -
Statistical inference for geometric process with the Rayleigh distribution
(Ankara Üniversitesi, 2019-02-01)The aim of this study is to investigate the solution of the statistical inference problem for the geometric process (GP) when the distribution of first occurrence time is assumed to be Rayleigh. Maximum likelihood (ML) ... -
Structural derivatives on time scales
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)We introduce the notion of structural derivative on time scales. The new operator of differentiation unifies the concepts of fractal and fractional order derivative and is motivated by lack of classical differentiability ... -
The Minkowski's inequalities utilizing newly defined generalized fractional integral operators
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)Motivated by the recent generalized fractional integral operators proposed by Tunc et. al. <cite>tunc</cite>, we establish a generalization of the reverse Minkowski's inequalities. Within this context, we provide new upper ...
