3 papers
gr-qc2024
Spherical symmetric solutions of conformal Killing gravity: black holes, wormholes, and sourceless cosmologies
Gérard Clément, Khireddine Nouicer
The most general set of static and spherically symmetric solutions for conformal Killing gravity coupled to Maxwell fields is presented in closed form. These solutions, depending o…
gr-qc2024
Farewell to Cotton gravity
Gérard Clément, Khireddine Nouicer
We reformulate our proof of the under-determination of Cotton gravity in terms of the Codazzi parametrization.
gr-qc2023
Cotton gravity is not predictive
Gérard Clément, Khireddine Nouicer
It is well-known that the theory of Cotton gravity proposed by Harada is trivially solved by all isotropic and homogeneous cosmologies. We show that this under-determination is mor…