47 citations · 109 across the 10 of their papers we have counts for
10 papers
Embedding the stationary spacetimes into Brans-Dicke cosmology via conformal transformations
Dilek K. Çiftci, Ali Demirözlü
A conformal transformation of a static or stationary spacetime by a time dependent conformal scale factor is one of the methods of producing a cosmological spacetime. Us…
Symmetry of Brans-Dicke gravity as a novel solution-generating technique
Valerio Faraoni, Dilek K. Ciftci, Shawn D. Belknap-Keet
A symmetry of Brans-Dicke gravity in (electro-)vacuo or in the presence of conformally invariant matter is presented and used as a solution-generating technique starting from a kno…
Perfect fluid solutions of Brans-Dicke and f(R)cosmology
Dilek K. Ciftci, Valerio Faraoni
Brans-Dicke cosmology with an (inverse) power-law potential is revisited in the light of modern quintessence and inflation models. A simple ansatz relating scale factor and scalar…
Brans-Dicke-Maxwell Solutions for Higher Dimensional Static Cylindrical Symmetric Spacetime
Dilek Kazıcı Çiftci, Özgür Delice
In this paper, Brans-Dicke-Maxwell type vacuum solutions are considered for a static cylindrically symmetric spacetime in arbitrary dimensions. Exact solutions are obtained by dire…
Higher Dimensional Cylindrical or Kasner Type Electrovacuum Solutions
Özgür Delice, Pınar Kirezli, Dilek K. Çiftci
We consider a D dimensional Kasner type diagonal spacetime where metric functions depend only on a single coordinate and electromagnetic field shares the symmetries of spacetime. T…
Cylindrically Symmetric Vacuum Solutions in Higher Dimensional Brans-Dicke Theory
Ahmet Baykal, Dilek K. Ciftci, Ozgur Delice
Higher dimensional, static, cylindrically symmetric vacuum solutions with and without a cosmological constant in the Brans-Dicke theory are presented. We show that, for a negative…