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Gauge-invariant magnetic perturbations in perfect-fluid cosmologies. (English) Zbl 0949.83087

MSC:
83F05 Cosmology
83C55 Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.)
83C30 Asymptotic procedures (radiation, news functions, \(\mathcal{H} \)-spaces, etc.) in general relativity and gravitational theory
83C50 Electromagnetic fields in general relativity and gravitational theory
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