On intrinsic symmetry in Gurzadyan-Xue cosmological models

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Analysis of cosmological solutions of GX dark energy models shows the presence of a separatrix in the phase space of solutions which divides them into two classes: Friedmannian-like with initial singularity and non-Friedmannian solutions. The invariants are found, that reveal the intrinsic symmetry in GX models.
3 pages, 1 figure, to appear in proc. XI Marcel Grossmann meeting (Berlin, 2006), World Scientific

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