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Coarse-graining of inhomogeneous dust flow in General Relativity via isometric embeddings
inhomogeneous dust flow isometric embeddings
2010/3/17
We present a new approach to coarse-graining of variables describing dust flow in GR. It is based on assigning quasi-local shear, twist and expansion to 2-dimensional surfaces with the help of isometr...
A new approach for doing theoretical and numeric work with Lemaitre-Tolman-Bondi dust models
Lemaitre-Tolman-Bondi cosmic times
2010/3/17
We introduce quasi-local integral scalar variables for the study of spherically symmetric Lemaitre-Tolman-Bondi (LTB) dust models. Besides providing a covariant, and theoretically appealing, interpret...
Tilted Bianchi Type I dust fluid magnetized cosmological model in general relativity
Bianchi type I dust fluid tilted models
2010/4/8
Tilted Bianchi Type I perfect fluid cosmological model in presence of magnetic field is investigated. To get a determinate solution, we assume p = 0 and A = BC, where A, B and C are metric potentials....