204 citations · 2.1k across the 60 of their papers we have counts for
60 papers
Models of a point particle in a three-dimensional AdS universe
Petr Lukeš, Pavel Krtouš
In 2+1-dimensional gravity, a conical deficit is commonly interpreted as a point-like particle. A distributional description of such a source is problematic since the Einstein equa…
Conical singularity in spacetimes with NUT is observer-dependent
Ivan Kolář, Pavel Krtouš, Maciej Ossowski
We discuss the issue of defining and measuring conical deficits (conicity) in spacetimes with the torsion singularity such as the Misner string in Taub--NUT spacetime. We propose a…
Conformal Einstein equation and symplectic flux with a positive cosmological constant
Sk Jahanur Hoque, Pavel Krtouš, Carlos Peón-Nieto
We analyze the conformal Einstein equation with a positive cosmological constant to extract fall-off conditions of the gravitational fields. The fall-off conditions are consistent…
On a lower-dimensional Killing vector origin of irreducible Killing tensors
Finnian Gray, Gloria Odak, Pavel Krtouš +1
Considering a spacetime foliated by co-dimension-2 hypersurfaces, we find the conditions under which lower-dimensional symmetries of a base space can be lifted up to irreducible Ki…
Ring wormholes and time machines
Valeri P. Frolov, Pavel Krtous, Andrei Zelnikov
In the present paper we discuss properties of a model of a ring wormhole, recently proposed by Gibbons and Volkov. Such a wormhole connects two flat spacetimes which are glued thro…
Are Superentropic black holes superentropic?
Michael Appels, Leopoldo Cuspinera, Ruth Gregory +2
We study a critical limit in which asymptotically-AdS black holes develop maximal conical deficits and their horizons become non-compact. When applied to stationary rotating black…