Towards an open set of regular cosmological models
L. Fern\'andez-Jambrina, L.M. Gonz\'alez-Romero
TL;DR
This paper explores the construction of a broad class of regular, non-singular cosmological models, focusing on cylindrical stiff perfect fluid cosmologies and their geodesic completeness.
Contribution
It demonstrates the existence of a large family of non-singular cosmological models with an open set of regular solutions, providing a new perspective on cosmological regularity.
Findings
Identified conditions for geodesic completeness in cylindrical stiff perfect fluid models
Discovered a large family of non-singular cosmological solutions
Provided detailed analysis of regularity conditions in these models
Abstract
The possibility of obtaining an open set of regular cosmological models is discussed. Cylindrical stiff perfect fluid cosmologies are studied in detail. The condition for geodesic completeness is easy to check. A large family of non-singular models is found therein.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Relativity and Gravitational Theory