4 papers
The Szekeres metrics with
Andrzej Krasiński
The evolution equation of the Szekeres metrics allows solutions with the mass function . They exist in both classes of the Szekeres metrics, have no Big Bang singularity and…
Causality in the maximally extended extreme Reissner--Nordström spacetime with identifications
Andrzej Krasiński
In continuation of the similarly titled paper on the Reissner -- Nordström (RN) metric (arXiv 2409.03786), in this paper it was verified whether it is possible to send…
Causality in the maximally extended Reissner--Nordström spacetime with identifications
Andrzej Krasiński
The maximally extended Reissner--Nordström (RN) spacetime with can be interpreted either as an infinite chain of asymptotically flat regions connected by tunnels betwee…
Spacetimes with no position drift
Andrzej Krasiński
This paper compares three criteria for a spacetime to be free of position drift: those by Hasse and Perlick (HP), Krasiński and Bolejko (KB) and Korzyński and Kopiński (KK). A spac…