Güncel Gönderiler: Matematik-Makale Koleksiyonu
Toplam kayıt 499, listelenen: 361-380
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Commutator subgroups of the power subgroups of Hecke groups H(lambda(q)) II
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2011)Let q >= 3 be an odd number and let H(lambda(q)) be the Hecke group associated to q. Let m be a positive integer and let H-m(lambda(q)) be the m-th power subgroup of H(lambda(q)). In this work, we study the commutator ... -
Multistage adomian decomposition method for solving nlp problems over a nonlinear fractional dynamical system
(Asme-Amer Soc Mechanical Eng, 2011)This paper deals with implementation of the multistage Adomian decomposition method (MADM) to solve a class of nonlinear programming (NLP) problems, which are reformulated with a nonlinear system of fractional differential ... -
Simultaneous and converse approximation theorems in weighted lebesgue spaces
(Element, 2011)In this paper we deal with the simultaneous and converse approximation by trigonometric polynomials of the functions in the Lebesgue spaces with weights satisfying so called Muckenhoupt's A(p) condition. -
Inequalities for one sided approximation in orlicz spaces
(Hacettepe Univ., 2011)In the present article some inequalities of trigonometric approximation are proved in Orlicz spaces generated by a quasiconvex Young function. Also, the main one-sided approximation problems are investigated. -
Warped products with a semi-symmetric non-metric connection
(Springer Heidelberg, 2011)The aim of this paper is to study warped product manifolds endowed with a semi-symmetric non-metric connection. We find relations between the Levi-Civita connection and the semi-symmetric non-metric connection of the warped ... -
Tensor product surfaces with pointwise 1-type gauss map
(Korean Mathematical Soc, 2011)Tensor product immersions of a given Riemannian manifold was initiated by B.-Y. Chen. In the present article we study the tensor product surfaces of two Euclidean plane curves. We show that a tensor product surface M of a ... -
Trigonometric approximation of functions in generalized lebesgue spaces with variable exponent
(Springer, 2011)We investigate the approximation properties of the trigonometric system in L-2 pi(p(.)): We consider the moduli of smoothness of fractional order and obtain direct and inverse approximation theorems together with a ... -
A new example of strongly pi-inverse monoids
(Hacettepe Univ., 2011)In [1], Ate defined the semidirect product version of the Schutzenberger product for any two monoids, and examined its regularity. Since this is a new product and there are so many algebraic properties that need to be ... -
Grobner-Shirshov bases of some monoids
(Elsevier Science Bv, 2011)The main goal of this paper is to define Grobner-Shirshov bases for some monoids. Therefore, after giving some preliminary material, we first give Grobner-Shirshov bases for graphs and Schutzenberger products of monoids ... -
Approximation in weighted orlicz spaces
(Versita, 2011)We prove some direct and converse theorems of trigonometric approximation in weighted Orlicz spaces with weights satisfying so called Muckenhoupt's A (p) condition. -
Warped products with a semi-symmetric metric connection
(Mathematical Soc Rep China, 2011)We find relations between the Levi-Civita connection and a semi-symmetric metric connection of the warped product M = M(1) x(f) M(2). We obtain some results of Einstein warped product manifolds with a semi-symmetric metric ... -
On the some normal subgroups of the extended modular group
(Elsevier Science Inc, 2011)In this paper, we give the group structures and the signatures of some normal subgroups of the extended modular group Pi containing the principal congruence subgroup Gamma(12). -
The next step of the word problem over monoids
(Elsevier Science Inc, 2011)It is known that a group presentation P can be regarded as a 2-complex with a single 0-cell. Thus we can consider a 3-complex with a single 0-cell which is known as a 3-presentation. Similarly, we can also consider ... -
Complex valued neural network with Mobius activation function
(Elsevier Science Bv, 2011)In this work, we propose a new type of activation function for a complex valued neural network (CVNN). This activation function is a special Mobius transformation classified as reflection. It is bounded outside of the unit ... -
Generalized fibonacci sequences related to the extended hecke groups and an application to the extended modular group
(Scientific Technical Research Council Turkey-Tubitak, 2010)The extended Hecke groups (H) over bar (lambda(q)) are generated by T(z) = -1/z, S(z) = 1/(z + lambda(q)) and R(z) = 1/(z) over bar with lambda(q) = 2 cos(pi/q) for q >= 3 integer. In this paper, we obtain a sequence which ... -
On generalized pseudo ricci symmetric manifolds admitting semi-symmetric metric connection
(Estonian Academy Publishers, 2010)The object of the present paper is to investigate the applications of generalized pseudo Ricci symmetric manifolds admitting a semi-symmetric metric connection to the general relativity and cosmology. Also the existence ... -
The properties of convolution type transforms in weighted orlicz spaces
(Croatian Mathematical Soc, 2010)In the weighted Orlicz spaces a convolution type transform is defined and a relation between this transform and the best approximation by trigonometric polynomials in the weighted Orlicz spaces is obtained. -
Approximation theorems in weighted lorentz spaces
(North Univ Baia Mare, 2010)In this paper we deal with the converse and simultaneous approximation problems of functions possessing derivatives of positive orders by trigonometric polynomials in the weighted Lorentz spaces with weights satisfying the ... -
A dynamic system approach to quadratic programming problems with penalty method
(Malaysian Mathematical Sciences Soc, 2010)In this work, we propose a dynamical system (state space) model approach to find a unique minimum of quadratic programming (QP) problem,;, with equality constrained. The unique minimum of the optimization problem is also ... -
Simultaneous and converse approximation theorems in weighted orlicz spaces
(Belgian Mathematical Soc Triomphe, 2010)In the present work, we investigate the simultaneous and converse approximation by trigonometric polynomials of the functions in the Orlicz spaces with weights satisfying so called Muckenhoupt's A(p) condition.
