Güncel Gönderiler: Matematik Bölümü
Toplam kayıt 544, listelenen: 201-220
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Approximation by (C,1) and Abel-Poisson means of Fourier series on hexagonal domains
(Element, 2013)The approximation problems by Cesaro (C, 1) means and by Abel-Poisson means of Fourier series on hexagonal domains are studied. The estimates for the rate of convergence of these means are obtained for functions in Lipschitz ... -
Relationships between fixed points and eigenvectors in the group GL (2, ℝ)
(Springer International Publishing Ag, 2013)PSL(2, R) is the most frequently studied subgroup of the Mobius transformations. By adding anti-automorphisms G' = {a'z + b'/c'z + d' : a', b', c', d' is an element of R, a'd' - b'c' = -1} to the group PSL(2, R), the ... -
A new monoid construction under crossed products proceedings of the international congress in honour of professor Hari M. Srivastava
(Springeropen, 2013)In this paper we define a new monoid construction under crossed products for given monoids. We also present a generating set and a relator set for this product. Finally, we give the necessary and sufficient conditions for ... -
Generalized M*-simple groups
(Rocky Mt Math Consortium, 2013)Let X be a compact bordered Klein surface of algebraic genus p >= 2, and let G = Gamma*/Lambda be a group of automorphisms of X where Gamma* is an NEC group and Lambda is a bordered surface group. If the order of G is 4q/(q ... -
Some properties of the generalized Fibonacci and Lucas sequences related to the extended Hecke groups
(Springer, 2013)In this paper, we define a sequence, which is a generalized version of the Lucas sequence, similar to the generalized Fibonacci sequence given in Koruo. glu and, Sahin in Turk. J. Math. 2009, doi:10.3906/mat-0902-33. Also, ... -
On the images of ellipses under similarities
(Ovidius Univ Press, 2013)We consider ellipses corresponding to any norm function on the complex plane and determine their images under the similarities which are special Mobius transformations. -
Squares of congruence subgroups of the extended modular group
(Univ Miskolc Inst Math, 2013)In this paper, we generalize some results related to the congruence subgroups of modular group Gamma, given in [7] and [6] by Kiming, Schutt, and Verrill, to the extended modular group Pi. -
Chen inequalities for submanifolds of a Riemannian manifold of nearly quasi-constant curvature
(Kossuth Lajos Tudomanyegyetem, 2013)The object of the present paper is to study Chen first inequality and k-Ricci curvatures for submanifolds of a Riemannian manifold of nearly quasi-constant curvature. -
On starlike functions connected with k-fibonacci numbers
(Springer, 2015)We present a new subclass SLk of starlike functions which is related to a shell-like curve. The coefficients of such functions are connected with k-Fibonacci numbers F-k,F- n defined recurrently by F-k,F- 0 = 0, F-k,F- 1 ... -
Digital variable sampling integral control of infinite-dimensional systems
(2000)In this paper we present sampled-data low-gain I-control algorithms for infinite-dimensional systems in which the sampling period is not constant. The system is assumed to be exponentially stable with invertible steady ... -
On some class of hypersurfaces in double-struck E signn+1 satisfying Chen's equality
(2002)In this paper we study pseudosymmetry type hypersurfaces in the Euclidean space n+1 satisfying B. Y. Chen's equality. -
Generalizations of Fibonacci and Lucas sequences
(2002)In this paper, we consider the Hecke groups H(√q), q ≥ 5 prime number, and we find an interesting number sequence which is denoted by dn. For q = 5, we get d2n = L2n+1 and d2n+1 = √5F2n+2 where L2n+1 is (2n + 1)th Lucas ... -
Recurrent immersions
(Walter de Gruyter GmbH, 1999)In this paper we consider the relations between immersions of recurrent type with the immersions having certain planar properties. Namely, we investigate the weak recurrent immersions -
Uniform convergence of bieberbach polynomials in closed radon domains
(2003)Recently, the classical Mergelyan's estimation about the uniform convergence of the Bieberbach polynomials to the conformai mapping in a closed domain with a smooth boundary was improved by ourselves. In this study this ... -
On the principal congruence subgroups of the Hecke-group H(√5)
(2004)Using the notion of quadratic reciprocity, we discuss the principal congruence subgroups of the Hecke group H(√5). -
On a class of generalized quasi-Einstein manifolds
(2006)In this study, we find the necessary conditions in order that a special class of generalized quasi-Einstein manifolds to be pseudo Riccisymmetric and R-harmonic. We also consider these type manifolds with cyclic parallel ... -
Hilbert functions of Gorenstein monomial curves
(American Mathematical Society, 2007)It is a conjecture due to M. E. Rossi that the Hilbert function of a one-dimensional Gorenstein local ring is non-decreasing. In this article, we show that the Hilbert function is non-decreasing for local Gorenstein rings ... -
Applications of k-fibonacci numbers for the starlike analytic functions
(Hacettepe Univ, 2015)The k-Fibonacci numbers F-k,F-n (k > 0), defined recursively by F-k; 0 = 0; F-k,F-1 = 1 and F-k,F-n = k F-k,F-n + F(k, n-1)1 for n >= 1 are used to define a new class SLk. The purpose of this paper is to apply properties ... -
The isomorphism between two fundamental groups by Cayley graphs
(2008)Let G1 and G2 be two finite groups and let Cay(G1, S1) and Cay(G2, S2) be the corresponding Cayley graphs of these groups, respectively. By [2] and [8], one can define the fundamental group π1 (Γ, v) by using any connected ... -
The extended hecke groups as semi-direct products and related results
(2008)The extended Hecke groups H̄(λq) have been worked in (Sahin and Bizim, 2003) as amalgamated free products. In this paper, we first show that H(λq) is the semi-direct product (split extension) of the Hecke group H̄(λq) by ...
