A wide family of singularity-free cosmological models

Fernández Jambrina, LeonardoGonzález Romero, Luis Manuel2023-06-202023-06-202002-07-150556-282110.1103/PhysRevD.66.024027https://hdl.handle.net/20.500.14352/59736©2002 The American Physical Society. The present work has been supported by Dirección General de Enseñanza Superior Project PB98-0772. The authors wish to thank F. J. Chinea, F. Navarro-Lérida, and M. J. Pareja for valuable discussions.In this paper a family of nonsingular cylindrical perfect fluid cosmologies is derived. The equation of state corresponds to a stiff fluid. The family depends on two independent functions under very simple conditions. A sufficient condition for geodesic completeness is provided.engA wide family of singularity-free cosmological modelsjournal articlehttp://dx.doi.org/10.1103/PhysRevD.66.024027http://journals.aps.orgopen access51-73Perfect-fluid solutionsFísica-Modelos matemáticosFísica matemática