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gr-qc2002★ 52 cited
Gauge-Invariant Perturbations of Varying-Alpha Cosmologies
John D. Barrow, D. F. Mota
Using a gauge-invariant formalism we derive and solve the perturbed cosmological equations for the BSBM theory of varying fine structure 'constant'. We calculate the time evolution…
gr-qc2002★ 32 cited
Qualitative Analysis of Universes with Varying Alpha
John D. Barrow, David F. Mota
Assuming a Friedmann universe which evolves with a power-law scale factor, , we analyse the phase space of the system of equations that describes a time-varying fine struc…