Ermakov approach for Q=0 empty FRW minisuperspace oscillators
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The Wheeler-DeWitt equation for empty FRW minisuperspace universes of Hartle-Hawking factor ordering parameter Q=0 is mapped onto the dynamics of a unit mass classical oscillator. The latter is studied by the classical Ermakov invariant method. Angle quantities are presented in the same context
8 pages, 4 figs
8 pages, 4 figs