Analytic integrability of the Bianchi class A cosmological models with 0 ⩽ k < 1

Autor: Ferragut, Antoni, Llibre, Jaume, Pantazi, Chara
Zdroj: In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena March 2013 48:12-21
Databáze: ScienceDirect