Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time

S.C. Mancas; Haret C. Rosu; Pisin Chen; Stefani Mancas

doi:10.1142/S021773231550100x

Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time

S.C. Mancas, Haret C. Rosu, Pisin Chen, Stefani Mancas

Embry-Riddle Aeronautical University

Research output: Contribution to journal › Article › peer-review

Abstract

For non-zero 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 (2015) 882-887. This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are provided as particular cases of Λ ≠ 0.

Original language	American English
Journal	Modern Physics Letters A
Volume	30
DOIs	https://doi.org/10.1142/S021773231550100x
State	Published - Jun 2015

Disciplines

Physical Sciences and Mathematics

Access to Document

10.1142/S021773231550100xLicense: Unspecified

Cite this

@article{dc6426c5a9f849fdabd3e0e954bfbc4b,

title = "Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time",

abstract = " For non-zero 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 (2015) 882-887. This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are provided as particular cases of Λ ≠ 0.",

author = "S.C. Mancas and Rosu, {Haret C.} and Pisin Chen and Stefani Mancas",

year = "2015",

month = jun,

doi = "10.1142/S021773231550100x",

language = "American English",

volume = "30",

journal = "Modern Physics Letters A",

issn = "1793-6632",

}

TY - JOUR

T1 - Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time

AU - Mancas, S.C.

AU - Rosu, Haret C.

AU - Chen, Pisin

AU - Mancas, Stefani

PY - 2015/6

Y1 - 2015/6

N2 - For non-zero 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 (2015) 882-887. This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are provided as particular cases of Λ ≠ 0.

AB - For non-zero 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 (2015) 882-887. This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are provided as particular cases of Λ ≠ 0.

UR - https://commons.erau.edu/cgi/viewcontent.cgi?article=1708amp;context=publication

U2 - 10.1142/S021773231550100x

DO - 10.1142/S021773231550100x

M3 - Article

SN - 1793-6632

VL - 30

JO - Modern Physics Letters A

JF - Modern Physics Letters A

ER -

Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time

Abstract

Disciplines

Access to Document

Other files and links

Cite this