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pro vyhledávání: '"Ildes, Medine"'
Autor:
Ildes, Medine, Arik, Metin
We investigate the most general exact solutions of Brans-Dicke cosmology by choosing the scale factor "a" as the new independent variable. It is shown that a set of three field equations can be reduced to a constraint equation and a first order linea
Externí odkaz:
http://arxiv.org/abs/2204.10396
Autor:
Ildes, Medine, Arik, Metin
We study the most general cosmological model with real scalar field which is minimally coupled to gravity. Our calculations are based on Friedmann-Lemaitre-Robertson-Walker (FLRW) background metric. Field equations consist of three differential equat
Externí odkaz:
http://arxiv.org/abs/2203.16449
We present several features of a cosmological model based on the Brans-Dicke-Jordan-Thirry action which is scale invariant with a quartic potential for the Jordan scalar field. We show that the radiation dominated era starts with a closed universe wh
Externí odkaz:
http://arxiv.org/abs/1801.03031
Autor:
Arik, Metin, Ildes, Medine
In this work we uncover the mathematical structure of the Schwinger algebra and introduce an almost unitary Schwinger operators which are derived by considering translation operators on a finite lattice. We calculate mathematical relations between th
Externí odkaz:
http://arxiv.org/abs/1710.08743
Autor:
Arik, Metin, Ildes, Medine
We define a deformed kinetic energy operator for a discrete position space with a finite number of points. The structure may be either periodic or nonperiodic with well-defined end points. It is shown that for the nonperiodic case the translation ope
Externí odkaz:
http://arxiv.org/abs/1510.04576
Autor:
Ildes, Medine1 (AUTHOR) medine.ildes@boun.edu.tr, Arik, Metin1 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. Feb2023, Vol. 83 Issue 2, p1-28. 28p.
Autor:
Ildes, Medine, Arik, Metin
Publikováno v:
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology; Jan2023, Vol. 32 Issue 1, p1-31, 31p
We present several features of a cosmological model based on the Brans-Dicke-Jordan-Thirry action which is scale invariant with a quartic potential for the Jordan scalar field. We show that the radiation dominated era starts with a closed universe wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63c94e76fa0d92df06423acf831ec926
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