3 papers
gr-qc2026
The Szekeres metrics with
Andrzej KrasiÅski, 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…
gr-qc2026
Causality in the maximally extended extreme Reissner--Nordström spacetime with identifications
Andrzej KrasiÅski
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…
physics.gen-ph2025
Causality in the maximally extended Reissner--Nordström spacetime with identifications
Andrzej KrasiÅski
The maximally extended Reissner--Nordström (RN) spacetime with can be interpreted either as an infinite chain of asymptotically flat regions connected by tunnels betwe…