Browsing by Author "Özdemir, Nülifer"
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Almost contact metric structures induced by G(2) structures
Özdemir, Nülifer; Solgun, Mehmet; Aktay, Şirin (Scientific Technical Research Council TurkeyTubitak, 2017)We study almost contact metric structures induced by 2fold 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 2fold 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 5Dimensional Nilpotent Lie Algebras
Özdemir, Nülifer; Solgun, Mehmet; Aktay, Şirin (MDPI AG, 2016)We study almost contact metric structures on 5dimensional 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 TurkeyTubitak, 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 KerrTaubNUT spacetime
Cebeci, Hakan; Özdemir, Nülifer (IOP Publishing LTD, 2013)We study the Dirac equation in the KerrTaubNUT spacetime. We use BoyerLindquist coordinates and separate the resulting equations into radial and angular parts. We obtain some exact analytical solutions of the angular ... 
Dirac Operator on a 7Manifold 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 7manifold. To obtain the metric corresponding to deformed G(2) structure, a new map is defined. By using this new map, the covariant ... 
Finite subquandles of sphere
Özdemir, Nülifer; Azcan, Hüseyin (Scientific Technical Research Council TurkeyTubitak, 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 7dimensional 3Sasakian Manifolds
Özdemir, Nülifer; Aktay, Şirin (2017)7boyutlu 3Sasaki manifoldlar üzerinde kanonik ve hemenhemen paralel G2 yapıların varlıgı bilinmektedir. Bu çalı¸smada kanonik veya hemenhemen paralel olmayan ? G2 yapıların varlıgı incelenmi¸stir. 7boyutlu 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 KerrNewmanTaubNUT 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 KerrNewmanTaubNUT 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 1forms depending on two parameters on the standard quaternionic Hopf bundle. This family is constructed by using the canonical connection 1form. 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 1forms depending on two parameters on the standard quaternionic Hopf bundle. This family is constructed by using the canonical connection 1form. 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 7dimensional manifold with structure group G 2 are considered. The fundamental 3form of such a manifold is deformed by a vector field, and the new cross product and the new ... 
On Seven Dimensional 3Sasakian Manifolds
Özdemir, Nülifer (Ankara University, Fac Sci, 2016)3Sasakian 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 3Sasakian structure ... 
QuasiSasakian Structures on 5Dimensional Nilpotent Lie Algebras
Özdemir, Nülifer; Aktay, Şirin; Solgun, Mehmet (Ankara University, Fac Sci, 2019)In this study, we examine the existence of quasiSasakian structures on nilpotent Lie algebras of dimension five. In addition, we give some results about left invariant quasiSasakian structures on Lie groups of dimension ... 
SeibergWitten Equations on FourDimensional Lorentzian Spin(C) Manifolds
Değirmenci, Nedim; Özdemir, Nülifer (World Scientific Publ Co Pte LTD, 2011)New kind of spinors are introduced on fourdimensional Lorentzian Spin(c) manifolds in [1]. We define Dirac operator on such spinors. In [2] SeibergWittenlike equations are written down on Minkowski space. In the present ... 
SeibergWitten Like Equations on PseudoRiemannian Spin.. Manifolds with G(2(2))* Structure
Özdemir, Nülifer; Değirmenci, Nedim (Hindawi LTD, 2016)We consider 7dimensional pseudoRiemannian spin(c) manifolds with structure group G(2(2))*. On such manifolds, the space of 2forms splits orthogonally into components Lambda M2 = Lambda(2)(7) circle plus Lambda(2)(14). ...