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Título:
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Exterior differential system for cosmological G_2 perfect fluids and geodesic completeness
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Autores:
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Fernández Jambrina, Leonardo ;
González Romero, Luis Manuel
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Tipo de documento:
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texto impreso
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Editorial:
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IOP publishing ltd, 1999-03
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física-Modelos matemáticos
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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In this paper a new formalism based on exterior differential systems is derived for perfect-fluid spacetimes endowed with an abelian orthogonally transitive G_2 group of motions acting on spacelike surfaces. This formulation allows simplifications of Einstein equations and it can be applied for different purposes. As an example a singularity-free metric is rederived in this framework. A sufficient condition for a diagonal metric to be geodesically complete is also provided.
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En línea:
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https://eprints.ucm.es/33051/1/gonzalezromero12preprint.pdf
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