12 citations · 21 across the 3 of their papers we have counts for
3 papers
gr-qc2024
News tensor on null hypersurfaces
Francisco Fernández-Álvarez
A geometric definition of news tensor on null hypersurfaces in four space-time dimensions is presented. When the conformal Einstein field equations hold, this news tensor yields th…
gr-qc2024★ 12 cited
Analysis of gravitational radiation generated by type D black holes with positive cosmological constant
Francisco Fernández-Álvarez, Jiří Podolský, José M. M. Senovilla
The criterion for existence of gravitational radiation at conformal infinity in the presence of a positive cosmological constant is applied to a general family of exact solutions r…
gr-qc2023★ 9 cited
Degrees of freedom of gravitational radiation with positive cosmological constant
Francisco Fernández-Álvarez
Results on the isolation of the radiative degrees of freedom of the gravitational field with a positive cosmological constant in full General Relativity are put forward. Methods em…