共动时具有Chiellini阻尼的正压FRW宇宙学
Barotropic FRW cosmologies with Chiellini damping in comoving time
摘要：
对于非零的宇宙学常数λ，我们证明了在同向运动时间内计算的正压FRW宇宙学在辐射占优的情况下导致了与我们最近在Phys. Lett. A 379（2015）882-887。这是由于在这种情况下得到的Ermakov方程。对于宇宙学常数为零的情况，作为λ不为零的特殊情况，给出了几种教科书上的解。
英文摘要：
For non-zero cosmological constant Lambda, 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 Lambda different from zero.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
