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Magnetized anisotropic cosmological models with varying \(\Lambda\). (English) Zbl 1129.83359

Summary: Some anisotropic homogeneous cosmological models with electromagnetic field are obtained in presence of a perfect fluid. The source of the magnetic field is due to an electric current produced along the \(x\)-axis. Without assuming any ad hoc law, we obtain a cosmological constant as a decreasing function of time which is supported by results from recent supernovae Ia observations. The behaviour of the electromagnetic field tensor together with some physical aspects of the model are also discussed.

MSC:

83F05 Relativistic cosmology
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