228 citations · 1.3k across the 28 of their papers we have counts for
28 papers
The Flat Critical Branch Between Nariai and Bertotti-Robinson Geometries as a Solution of Cosmological Einstein-Maxwell Theory
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
We analyze a class of product geometries of the form supported by electric, magnetic, or dyonic flux in the Einstein-Maxwell- theory. These spacetim…
Almost Universal Metrics
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
A metric is called universal if every symmetric conserved rank-two tensor constructed locally from the metric, the curvature, and covariant derivatives of the curvature is proporti…
Israel-Wilson-Perjes Metrics in a Theory with a Dilaton Field
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
We are interested in the charged dust solutions of the Einstein field equations in stationary and axially symmetric spacetimes; and inquire if the naked singularities of the Israel…
Comment on "Einstein-Gauss-Bonnet Gravity in 4-Dimensional Space-Time''
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
We summarize our proof that the "Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime" introduced in Phys. Rev. Lett. 124, 081301 (2020) does not have consistent field equat…
Is there a novel Einstein-Gauss-Bonnet theory in four dimensions?
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
No! We show that the field equations of Einstein-Gauss-Bonnet theory defined in generic dimensions split into two parts one of which always remains higher dimensional, and he…
Non-Einsteinian Black Holes in Generic 3D Gravity Theories
Metin Gurses, Tahsin Cagri Sisman, Bayram Tekin
The Bañados-Teitelboim-Zanelli (BTZ) black hole metric solves the three-dimensional Einstein's theory with a negative cosmological constant as well as all the generic higher deriva…