Yazar "Özdemir, Nülifer" için listeleme
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Almost contact metric structures induced by G(2) structures
Özdemir, Nülifer; Solgun, Mehmet; Aktay, Şirin (Scientific Technical Research Council Turkey-Tubitak, 2017)We study almost contact metric structures induced by 2-fold vector cross products on manifolds with G(2) structures. We get some results on possible classes of almost contact metric structures. Finally, we give examples. -
Almost contact metric structures induced by G2 structures
Özdemir, Nülifer; Solgun, Mehmet; Aktay, Şirin (2017)We study almost contact metric structures induced by 2-fold vector cross products on manifolds with G2 structures. We get some results on possible classes of almost contact metric structures. Finally, we give examples. -
Almost Contact Metric Structures on 5-Dimensional Nilpotent Lie Algebras
Özdemir, Nülifer; Solgun, Mehmet; Aktay, Şirin (MDPI AG, 2016)We study almost contact metric structures on 5-dimensional nilpotent Lie algebras and investigate the class of left invariant almost contact metric structures on corresponding Lie groups. We determine certain classes that ... -
The construction of maximum independent set of matrices via Clifford algebras
Değirmenci, Nedim; Özdemir, Nülifer (Scientific Technical Research Council Turkey-Tubitak, 2007)In [1], [2] and [6] the maximum number of some special type n x n matrices with elements in F whose nontrivial linear combinations with real coefficients are nonsingular is studied where F is the real field R, the complex ... -
The Dirac equation in Kerr-Taub-NUT spacetime
Cebeci, Hakan; Özdemir, Nülifer (IOP Publishing LTD, 2013)We study the Dirac equation in the Kerr-Taub-NUT spacetime. We use Boyer-Lindquist coordinates and separate the resulting equations into radial and angular parts. We obtain some exact analytical solutions of the angular ... -
Dirac Operator on a 7-Manifold with Deformed G(2) Structure
Özdemir, Nülifer; Aktay, Şirin (Ovidius University Press, 2012)In this work, we consider the deforming of a G(2) structure by a vector field on a 7-manifold. To obtain the metric corresponding to deformed G(2) structure, a new map is defined. By using this new map, the co-variant ... -
Finite subquandles of sphere
Özdemir, Nülifer; Azcan, Hüseyin (Scientific Technical Research Council Turkey-Tubitak, 2010)In this work finite subquandles of sphere are classified by using classification of subgroups of orthogonal group O(3). For any subquandle Q of sphere there is a subgroup G(Q) of O(3) associated with Q. It is shown that ... -
Integrable G2 Structures on 7-dimensional 3-Sasakian Manifolds
Özdemir, Nülifer; Aktay, Şirin (2017)7-boyutlu 3-Sasaki manifoldlar üzerinde kanonik ve hemen-hemen paralel G2 yapıların varlıgı bilinmektedir. Bu çalı¸smada kanonik veya hemen-hemen paralel olmayan ? G2 yapıların varlıgı incelenmi¸stir. 7-boyutlu 3- Sasaki ... -
Kürenin sonlu alt quandıllarının sınıflandırılması
Özdemir, Nülifer (Anadolu Üniversitesi, 2002)Bu tezde, kürenin sonlu alt quandılları 0(3) ortagonal grubunun sonlu alt grupları kullanılarak incelenmiştir. Kürenin bir Q alt quandılana olmak üzere 0(3) ortagünal grubunun alt grubu karşılık getirilmiştir. Q sonsuz bir ... -
Motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime and analytical solutions
Cebeci, Hakan; Özdemir, Nülifer; Sentorun, Seçil (Amer Physical Soc, 2016)In this work, we study the motion of charged test particles in Kerr-Newman-Taub-NUT spacetime. We analyze the angular and the radial parts of the orbit equations and examine the possible orbit types. We also investigate ... -
A Note On Connection Forms On the Quaternionic Hopf Bundle
Özdemir, Nülifer (2017)It is known that there exists a family of connection 1-forms depending on two parameters on the standard quaternionic Hopf bundle. This family is constructed by using the canonical connection 1-form. In this work, the self ... -
A Note on Connectıon Forms on the Quaternıonıc Hopf Bundle
Özdemir, Nülifer (2017)It is known that there exists a family of connection 1-forms depending on two parameters on the standard quaternionic Hopf bundle. This family is constructed by using the canonical connection 1-form. In this work, the self ... -
On deformations of G(2)-structures by Killing vector fields
Özdemir, Nülifer; Aktay, Şirin (Walter De Gruyter GMBH, 2014)In this paper, vectorial type deformations of a 7-dimensional manifold with structure group G 2 are considered. The fundamental 3-form of such a manifold is deformed by a vector field, and the new cross product and the new ... -
On Seven Dimensional 3-Sasakian Manifolds
Özdemir, Nülifer (Ankara University, Fac Sci, 2016)3-Sasakian manifolds in dimension seven have cocalibrated and nearly parallel G(2)-structures. In this work, cocalibrated G(2)-structure is deformed by one of the characteristic vector fields of the 3-Sasakian structure ... -
Quasi-Sasakian Structures on 5-Dimensional Nilpotent Lie Algebras
Özdemir, Nülifer; Aktay, Şirin; Solgun, Mehmet (Ankara University, Fac Sci, 2019)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 ... -
Seiberg-Witten Equations on Four-Dimensional Lorentzian Spin(C) Manifolds
Değirmenci, Nedim; Özdemir, Nülifer (World Scientific Publ Co Pte LTD, 2011)New kind of spinors are introduced on four-dimensional Lorentzian Spin(c) manifolds in [1]. We define Dirac operator on such spinors. In [2] Seiberg-Witten-like equations are written down on Minkowski space. In the present ... -
Seiberg-Witten Like Equations on Pseudo-Riemannian Spin.. Manifolds with G(2(2))* Structure
Özdemir, Nülifer; Değirmenci, Nedim (Hindawi LTD, 2016)We consider 7-dimensional pseudo-Riemannian spin(c) manifolds with structure group G(2(2))*. On such manifolds, the space of 2-forms splits orthogonally into components Lambda M-2 = Lambda(2)(7) circle plus Lambda(2)(14). ...
