Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Dog̃ukan Taṣer"'
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 20
In this study, unimodular [Formula: see text] gravity is proposed as an alternative theory of gravity. Field equations of unimodular [Formula: see text] gravity are suggested. The field equation and their solutions are obtained for exponential expans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2abb23e5ba519bb9ac6746955b6a577e
https://doi.org/10.1142/s0219887823500731
https://doi.org/10.1142/s0219887823500731
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 19
In this study, our main purpose is to study a model which is homogenous and anisotropic describing early stage of Universe in non-minimally coupled scalar theory. It is quite interesting to study a model describing early stage in modified theory whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86d6319d972d45d392e2ab8a8acff510
https://doi.org/10.1142/s0219887822501432
https://doi.org/10.1142/s0219887822501432
Autor:
Melis Ulu Dog̃ru, Dog̃ukan Taṣer
Publikováno v:
New Astronomy. 86:101575
Non-static Einstein–Rosen universe with scalar field is examined via two different selection of f ( R , T ) models. Firstly, we analyzed Einstein–Rosen universe with scalar field in f ( R , T ) = R + 2 f ( T ) model. Then, we constructed field eq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::390a8a4f6814a7efe2f9dac3770affc6
https://doi.org/10.1016/j.newast.2021.101575
https://doi.org/10.1016/j.newast.2021.101575
Autor:
Melis Ulu Dog̃ru, Dog̃ukan Taṣer
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 17:2050132
In this study, we investigated scalar field in [Formula: see text]-gravity by using LRS Bianchi type-I universe. Massless and massive scalar field models are separately constructed in [Formula: see text]-gravity. Massless scalar field models are exam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83324e61443c0f33d4ca6d5f0dfc30db
https://doi.org/10.1142/s0219887820501327
https://doi.org/10.1142/s0219887820501327
Autor:
Dog̃ukan Taṣer
Publikováno v:
Modern Physics Letters A. 35:2050067
In this paper, conformal symmetric Freidmann–Robertson–Walker (FRW) universe with perfect fluid in the framework of [Formula: see text] gravitational theory is investigated. Firstly, field equations of FRW universe with perfect fluid are obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8beebab3c59b36997c30c49967703ca4
https://doi.org/10.1142/s0217732320500674
https://doi.org/10.1142/s0217732320500674
Autor:
Halife Çağlar, Melis Ulu Dog̃ru, Derya Baykal, Neriman Varlikli, Güliz Kiy, Emine Gündüz, Dog̃ukan Taṣer
Publikováno v:
International Journal of Theoretical Physics. 51:1545-1554
In this paper, we devote to investigate the energy-momentum problem of higher dimensional black holes in the general theory of relativity. The energy and momentum complex of Moller has been used for the calculations. Also, total energy and total mome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6b2ebfc2b7d729e81c7bd65c6cf2b00
https://doi.org/10.1007/s10773-011-1032-3
https://doi.org/10.1007/s10773-011-1032-3
Autor:
Melis Ulu Dog̃ru, Dog̃ukan Taṣer
Publikováno v:
Modern Physics Letters A. 33:1850134
In this study, we investigate the Bianchi type-I cosmologies with string cloud attached to perfect fluid in f(R) gravity. The field equations and their exact solutions for Bianchi type-I cosmologies with string cloud attached to a perfect fluid are f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfb94fc62a61a6d8e7b8f88559e75973
https://doi.org/10.1142/s0217732318501341
https://doi.org/10.1142/s0217732318501341
Autor:
Melis Ulu Dog̃ru, Dog̃ukan Taṣer
Publikováno v:
AIP Conference Proceedings.
In this study, we investigate electromagnetic field and Chaplygin gas in f (R)-gravity. We use field equations and their solutions of spherically symmetric space-time in the presence of conformal symmetry. Exact solutions of conformal spherically sym
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84482809e0a09a70d38e4f83ec36c316
https://doi.org/10.1063/1.4944183
https://doi.org/10.1063/1.4944183
Publikováno v:
The European Physical Journal Plus. 130
In this study, we have investigated the higher dimensional flat Friedmann-Robertson-Walker (FRW) universe for a cloud of string with perfect fluid attached quark and strange quark matter (SQM) in Lyra geometry. Generalized (n + 2) dimensional flat FR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0f283d86f673c3036bd5a13d68e4b50
https://doi.org/10.1140/epjp/i2015-15012-x
https://doi.org/10.1140/epjp/i2015-15012-x
Autor:
Dog̃ukan Taṣer, Melis Ulu Dog̃ru
Publikováno v:
International Journal of Modern Physics D. 25:1650017
We investigate spherically symmetric spacetime filled with global monopole and perfect fluid in [Formula: see text]-gravity. We consider field equations of [Formula: see text]-gravity in order to understand the global monopole and the perfect fluid c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42063ad0f1864d5a40cafc85ca2f8459
https://doi.org/10.1142/s0218271816500176
https://doi.org/10.1142/s0218271816500176