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gr-qc2024★ 1 cited
Junction conditions for higher order gravity theories from a Gibbons-Hawking-York boundary term
Marcos A. Ramirez, Cristián Martínez
In this work we study the problem of generalizing the Gibbons-Hawking-York boundary terms for general quadratic theories of gravity and propose a simple condition to obtain them. F…
gr-qc2024★ 1 cited
On the central singularity of the BTZ geometries
Matías Briceño, Cristián Martínez, Jorge Zanelli
The nature of the central singularity of the BTZ geometries -- stationary vacuum solutions of 2+1 gravity with negative cosmological constant and $SO(2)\times \mathb…