69 citations · 108 across the 4 of their papers we have counts for
4 papers
Geometric origin of the cosmological constant from Einstein-Chern-Simons gravity compactified to four dimensions
M. Cataldo, S. Lepe, C. Riquelme +1
We present a model in which the cosmological constant emerges as a purely geometric effect from the four-dimensional compactification of five-dimensional Einstein-Chern-Simons grav…
Can wormhole spacetimes in Unimodular Gravity be supported by ordinary matter? A general proof of the exotic matter requirement
Mauricio Cataldo, Norman Cruz, Patricio Salgado
We establish a general no--go theorem demonstrating that all traversable wormhole configurations in Unimodular Gravity necessarily require exotic matter. The proof relies solely on…
Self--dual Lorentzian wormholes in n--dimensional Einstein gravity
M. Cataldo, P. Salgado, P. Minning
A family of spherically symmetric, static and self--dual Lorentzian wormholes is obtained in n--dimensional Einstein gravity. This class of solutions includes the n--dimensional ve…
Static Einstein-Maxwell Solutions in 2+1 dimensions
Mauricio Cataldo, Patricio Salgado
We obtain the Einstein-Maxwell equations for (2+1)-dimensional static space-time, which are invariant under the transformation . It is…