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Korteweg-de Vries adiabatic index solitons in barotropic open FRW cosmologies

H. C. Rosu
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Abstract

Applying standard mathematical methods, it is explicitly shown how the Riccati equation for the Hubble parameter H(η) of barotropic open FRW cosmologies is connected with a Korteweg-de Vries equation for adiabatic index solitons. It is also shown how one can embed a discrete sequence of adiabatic indices of the type n^2({3/2}γ-1)^2 (γ\neq 2/3) in the sech FRW adiabatic index soliton

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H. C. Rosu. 2001-11-01. Korteweg-de Vries adiabatic index solitons in barotropic open FRW cosmologies. https://doi.org/10.1142/s0217732302006898

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