Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Sert, Ozcan"'
A new theory of continuum defects in terms of the general teleparallel geometry and exterior algebra
We discuss the geometric formulation of continuum defects consisting of dislocations and disclinations. After reviewing the metric affine geometry and the present geometric formulation of dislocation and disclination written in terms of torsion and f
Externí odkaz:
http://arxiv.org/abs/2408.06184
Publikováno v:
Eur. Phys. J. C 83 (2023)106
We retreat the well-known Einstein-Cartan theory by slightly modifying the covariant derivative of spinor field by investigating double cover of the Lorentz group. We first write the Lagrangian consisting of the Einstein-Hilbert term, Dirac term and
Externí odkaz:
http://arxiv.org/abs/2212.02917
Publikováno v:
Eur. Phys. J. C 83 (2023) 17
Just after Weyl's paper (Weyl in Gravitation und Elektrizit\"at, Sitzungsber. Preuss. Akad., Berlin, 1918) Einstein claimed that a gravity model written in a spacetime geometry with non-metricity suffers from a phenomenon, the so-called second clock
Externí odkaz:
http://arxiv.org/abs/2202.10165
Publikováno v:
Int. J. Geom. Meth. Mod.Phys. 19 (2022) 2250045
After summarizing basic concepts for the exterior algebra we firstly discuss the gauge structure of the bundle over base manifold for deciding the form of the gravitational sector of the total Lagrangian in any dimensions. Then we couple minimally a
Externí odkaz:
http://arxiv.org/abs/2011.10982
Akademický článek
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Akademický článek
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Publikováno v:
JCAP 11 (2017) 026
We consider the non-minimal model of gravity in $Y(R) F^2$-form. We investigate a particular case of the model, for which the higher order derivatives are eliminated but the scalar curvature $R$ is kept to be dynamical via the constraint $Y_RF_{mn}F^
Externí odkaz:
http://arxiv.org/abs/1611.03393
Autor:
Pala, Caglar1,2 (AUTHOR) caglar.pala@gmail.com, Sert, Ozcan2 (AUTHOR), Adak, Muzaffer2 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. Jan2023, Vol. 83 Issue 1, p1-11. 11p.
Publikováno v:
Int.J.Mod.Phys. D15 (2006) 619-634
We develop a symmetric teleparallel gravity model in a space-time with only the non-metricity is nonzero, in terms of a Lagrangian quadratic in the non-metricity tensor. We present a detailed discussion of the variations that may be used for any grav
Externí odkaz:
http://arxiv.org/abs/gr-qc/0505025
Autor:
Adak, Muzaffer, Sert, Ozcan
Publikováno v:
Turk.J.Phys. 29 (2005) 1-7
Teleparallel gravity models, in which the curvature and the nonmetricity of spacetime are both set zero, are widely studied in the literature. We work a different teleparallel theory, in which the curvature and the torsion of spacetime are both const
Externí odkaz:
http://arxiv.org/abs/gr-qc/0412007