Güncel Gönderiler: Matematik Bölümü
Toplam kayıt 548, listelenen: 261-280
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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 circle preserving property of möbius transformations
(Springer New York, 2014)This paper is mainly concerned with the study of circle-preserving property of Möbius transformations acting on. The circle-preserving property is the most known invariant characteristic property of Möbius transformations. ... -
Erratum: Chen inequalities for submanifolds of real space forms with a semi-symmetric non-metric connection (Canadian Mathematical Bulletin (2012) 55:3 (611-622))
(Canadian Mathematical Society, 2014)Özet bilgisi yok -
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 ... -
On the n-transitivity of the group of Möbius transformations on C∞
(Pergamon-Elsevier Science Ltd, 2009)Mobius transformations generate the conformal group in the plane and have been used in neural networks and conformal field theory. Sonic invariant characteristic properties of Mobius transformations such as the invariance ... -
Pinching theorems for totally real minimal submanifolds in cpn
(Cambridge Univ Press, 2009)Let M be an n-dimensional totally real minimal submanifold in CPn. We prove that if M is semi-parallel and the scalar curvature tau, -(n-1)(n-2)(n+1)/2 <= tau <= 0, then M is an open part of the Clifford torus T-n subset ... -
On some classes of super quasi-Einstein manifolds
(Pergamon-Elsevier Science Ltd, 2009)Quasi-Einstein and generalized quasi-Einstein manifolds are the generalizations of Einstein manifolds. In this study, we consider a super quasi-Einstein manifold, which is another generalization of an Einstein manifold. ... -
New examples of generalized sasakian-space-forms
(Rendiconti del Seminario Matematico, 2015)In this paper we study when a non-anti-invariant slant submanifold of a generalized Sasakian-space-form inherits such a structure, on the assumption that it is totally geodesic, totally umbilical, totally contact geodesic ... -
Grobner-shirshov bases and embedding of a semigroup in a group
(Jangjeon Mathematical Society, 2015)The main goal of this paper is to show that if a group G has a Grobner-Shirshov basis R that satisfies the condition R+, then the semigroup P (with positive rules in R as a defining relation) embeds in this group G. As a ... -
Chen inequalities for submanifolds of real space forms with a semi-symmetric non-metric connection (vol 55, pg 611, 2012)
(Canadian Mathematical Soc, 2015)We correct the coefficients in inequality (4.1) in Theorem 4.1(i), from C. Ozgur and A. Mihai, Chen inequalities for submanifolds of real space forms with a semi-symmetric non-metric connection. -
Refined estimates of trigonometric approximation for functions with generalized derivatives in weighted variable exponent Lebesgue spaces
(Walter De Gruyter Gmbh, 2012)The refined direct and inverse estimates for (alpha, psi)-derivatives of functions in weighted variable exponent Lebesgue spaces are proved. -
Some results on o*-groups
(Union Matematica Argentina, 2012)A compact Klein surface with boundary of algebraic genus g >= 2 has at most 12(g - 1) automorphisms. When a surface attains this bound, it has maximal symmetry, and the group of automorphisms is then called an M*-group. ... -
On quasi-einstein warped products
(Univ Al İ Cuza, 2012)We study quasi-Einstein warped product manifolds for arbitrary dimension n >= 3. -
Chen inequalities for submanifolds of a cosymplectic space form with a semi-symmetric metric connection
(Univ Al İ Cuza, 2012)In this paper, we prove Chen inequalities for submanifolds of a cosymplectic space form of constant phi-sectional curvature N2m+1(c) endowed with a semi-symmetric metric connection, i.e., relations between the mean curvature ... -
Contact cr-warped product submanifolds in generalized sasakian space forms
(Scientific Technical Research Council Turkey-Tubitak, 2012)We consider a contact CR-warped product submanifold M = M-inverted perpendicular x (f) M-perpendicular to of a trans-Sasakian generalized Sasakian space form (M) over tilde (f(1); f(2), f(3)). We show that M is a contact ...
