Submitting Campus
Daytona Beach
Department
Mathematics
Document Type
Article
Publication/Presentation Date
6-2015
Abstract/Description
For nonzero cosmological constant Λ, we show that the barotropic FRW cosmologies as worked out in the comoving time lead in the radiation-dominated case to scale factors of identical form as for the Chiellini dissipative scale factors in conformal time obtained recently by us in Phys. Lett. A 379, 882 (2015). This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are easily obtained as particular cases of our formulas and hypergeometric solutions are also reminded.
Publication Title
Modern Physics Letters A
DOI
https://doi.org/10.1142/S021773231550100x
Publisher
World Scientific
Grant or Award Name
Ministry of Science and Technology (MOST) grant 101-2923-M-002-006-MY3
Scholarly Commons Citation
Rosu, H. C., Mancas, S., & Chen, P. (2015). Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time. Modern Physics Letters A, 30(20). https://doi.org/10.1142/S021773231550100x
