Güncel Gönderiler: Matematik-Makale Koleksiyonu
Toplam kayıt 499, listelenen: 221-240
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Expanded lie group method applied to generalized boussinesq equation
(2011)In this study, Generalized Bossinesq Equation reduced to previously unknown target ordinary differential equation by applying the Expanded Lie group transformation and similarity reduction. Morover, obtained target ordinary ... -
Approximation in Morrey-Smirnov classes
(2011)The Morrey-Smirnov classes EP, α(G), 0 < α ≤ 2 and p > 1, of the analytic functions in the domain G with a rectifiable Jordan boundary are defined. In these classes the inverse theorem of approximation theory is proved and ... -
Some approximation problems for (α, ψ)-differentiable functions in weighted variable exponent lebesgue spaces
(2012)We prove direct and inverse theorems for (α, ψ)-differentiable functions in weighted variable exponent Lebesgue spaces. We also define a Besov type space and obtain some properties of this space. Bibliography: 29 titles -
An approximation of conformal mappings on smooth domains: An International Journal
(Taylor & Francis Ltd, 2013)Let G be a finite domain with z(0)G and bounded by a Jordan curve L:G. The Bieberbach polynomials (n), n=1,2,..., associated with the pair (G,z(0)) can be used to approximate the conformal mapping phi(0) from G to ... -
Approximation of functions of weighted lebesgue and smirnov spaces
(2012)In this work we investigate the inverse approximation problems in the Lebesgue and Smirnov spaces with weights satisfying the so-called Mucken-houpt's A p condition in terms of the α-th mean modulus of smoothness, α > 0. ... -
Approximation by trigonometric polynomials of functions having (α, ψ)- derivatives in weighted variable exponent lebesgue spaces
(2012)We prove direct simultaneous and converse approximation theorems by trigonometric polynomials for functions f and (α, ψ)-derivatives of f in weighted Lebesgue spaces with variable exponent. Bibliography: 11 titles. -
Classification of metallic shaped hypersurfaces in real space forms
(Scientific Technical Research Council Turkey-Tubitak, 2015)We define the notion of a metallic shaped hypersurface and give the full classification of metallic shaped hypersurfaces in real space forms. We deduce that every metallic shaped hypersurface in real space forms is a ... -
Grobner-shirshov bases of some weyl groups
(Rocky Mt Math Consortium, 2015)In this paper, we obtain Crobner-Shirshov (non-commutative) bases for the n-extended affine Weyl group (W) over tilde of type A(1), elliptic Weyl groups of types A(1)((1,1)) A(1)((1,1))* and the 2-extended affine Weyl group ... -
Knit products of some groups and their applications
(C E D A M Spa Casa Editr Dott Antonio Milani, 2009)Let G be a group with subgroups A and K (not necessarily normal) such that G = AK and A boolean AND K = {1}. Then G is isomorphic to the knit product, that is, the "two-sided semidirect product" of K by A. We note that ... -
Gluing and hilbert functions of monomial curves
(Amer Physical Soc, 2009)In this article, by using the technique of gluing semigroups, we give infinitely many families of 1-dimensional local rings with non-decreasing Hilbert functions. More significantly, these are local rings whose associated ... -
Approximation of continuous functions by de la Vallée-Poussin means of Fourier series on hexagonal domains
(2013)For a Hölder continuous function f, periodic with respect to the hexagon lattice, deviations of generalized de la Vallée-Poussin means Vλn (f) and classical de la Vallée-Poussin means Vn2n (f) of its hexagonal Fourier ... -
Approximation by trigonometric polynomials in weighted rearrangement invariant spaces
(Croatian Mathematical Soc, 2009)We investigate the approximation properties of trigonometric polynomials and prove some direct and inverse theorems for polynomial approximation in weighted rearrangement invariant spaces. -
Symmetry reduction of chazy equation
(Hikari Ltd, 2014)In this study, invariant group of the Chazy Equation found by symmerty group analysis. First and second reduction made by the method of differential invariant. This equation is finally reduced to first-order ODE. Solution ... -
The word and generalized word problem for semigroups under wreath products
(Soc Matematice Romania, 2009)The aim of this paper is to investigate the solvability of the word and generalized word problem for the wreath product of infinite and finite semi-groups. -
On the power subgroups of the Modular group
(Charles Babbage Res Ctr, 2009)We show that the power subgroups M-6k(k > 1) of the Modular group M = PSL(2, Z) are subgroups of the groups M'(6k, 6k). Here the groups M'(6k, 6k)(k > 1) are subgroups of the commutator subgroup M' of M of index 36k(2) in M'. -
Fractional optimal control problem of a distributed system in cylindrical coordinates
(Elsevier Science Bv, 2009)In this work, Fractional Optimal Control Problem (FOCP) of a Distributed system is investigated in cylindrical coordinates. Axis-symmetry naturally arises in the problem formulation. The fractional time derivative is ... -
Approximation in weighted Smirnov classes
(Taylor & Francis Inc, 2015)In this work, the direct and inverse problems of approximation theory in the weighted Smirnov classes of analytic functions defined on the domains with a regular boundary are investigated. In particular, the constructive ... -
Fractional optimal control of a 2-dimensional distributed system using eigenfunctions
(Springer, 2009)This paper presents an eigenfunctions expansion based scheme for Fractional Optimal Control (FOC) of a 2-dimensional distributed system. The fractional derivative is defined in the Riemann-Liouville sense. The performance ... -
Hypersurfaces satisfying some curvature conditions in the semi-Euclidean space
(Pergamon-Elsevier Science Ltd, 2009)We consider some conditions on conharmonic curvature tensor K. which has many applications in physics and mathematics, on a hypersurface in the semi-Euclidean space E(s)(n+1). We prove that every conharmonicaly Ricci-symmetric ... -
Some new monoid and group constructions under semidirect products
(Charles Babbage Res Ctr, 2009)In this paper we mainly define semidirect product version of the Schutzenberger product and also a new two-sided semidirect product construction for arbitrary two monoids. Then, as main results, we present a generating and ...
