Open AccessA kind of singularity-free cosmology model
Author(s) -
Yongjiu Wang,
Aigen Li,
Gong Tian-Xi,
Juhua Chen
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.712
Subject(s) - singularity , cosmology , physics , initial singularity , rotation (mathematics) , singularity theory , classical mechanics , cosmological model , theoretical physics , essential singularity , mathematical physics , gravitational singularity , de sitter universe , universe , quantum mechanics , mathematical analysis , geometry , mathematics
According to Penrose-Hawkings theorem on the singularity of cosmologythe singularity exists in the case when the source havs no rotation or accelerationand the energy density satisfies the condition ρ+3p≥0. In this paper we study some singularity-free cosmological models under the conditions that the source has rotation. Some cosmological solutions without singularity are obtained.