Download e-book for iPad: Accelerated Cosmic Expansion: Proceedings of the Fourth by Salvatore Capozziello (auth.), Claudia Moreno González, José

By Salvatore Capozziello (auth.), Claudia Moreno González, José Edgar Madriz Aguilar, Luz Marina Reyes Barrera (eds.)

ISBN-10: 3319020625

ISBN-13: 9783319020624

ISBN-10: 3319020633

ISBN-13: 9783319020631

Proceedings from the 2012 Fourth foreign assembly on Gravitation and Cosmology, concentrating on speeded up cosmic expansion

This quantity presents either an replace and a evaluate of the nation of different theories of gravity in reference to the speeded up growth of the universe factor. assorted theoretical proposals exist to give an explanation for the acceleration within the cosmic growth, producing the darkish strength factor and establishing the prospect to theories of gravity substitute to basic relativity. similar concerns resembling the darkish topic challenge also are surveyed so that it will provide the readers profound perception at the topic from varied issues of view. produced from brief talks and plenary lectures given via prime specialists within the box, a few of them with wonderful and historical contributions, the publication permits the reader to discover readable and referenced surveys in themes like f(R) theories, the darkish topic and darkish power matters, transformed Newtonian Dynamics (MOND) eventualities, f(T) theories, scalar-tensor theories derived from non-Riemannian geometries, emergent universes, the cosmological consistent and different themes of present curiosity for more youthful and senior physicists and graduate scholars.

These complaints are from the Fourth foreign assembly on Gravitation and Cosmology, held in Guadalajara, Jalisco, México, from 20 - 25 could, 2012, used to be backed through ICTP- Trieste, Italy and COECyTJAL-Universidad de Guadalajara, México. This occasion is a sequence of clinical conferences begun in 2004 in Cuba, concentrating on present and chosen subject matters within the fields of gravitation and cosmology.

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The Cauchy problem is also well-posed for Palatini f (R) gravity in vacuo (in which case the theory reduces to GR with a cosmological constant), but is extremely unlikely to be well-posed or well-formulated in matter, a problem that is reminiscent of the difficulties in constructing matter configurations [27] and is ultimately due to the structure of the field equations—this adds to the problems of Palatini f (R) gravity [21, 55, 56] (but see [57] for a different view). 5 Scalar-Tensor and f(R) Black Holes In any theory of gravity it is important to understand the structure of its spherically symmetric solutions and, in particular, of its black holes.

It has been noted that matter does not appear as source of the scalar field but both interact through the metric field. Another feature of the Weyl geometry is the invariance of geodesics under Weyl transformations, which implies that the classical tests can be made in the Riemann frame and are automatically satisfied in all other frames connected by a Weyl transformation. To conclude, we mention that we are investigating the cosmological models in this theory, where we expect a different set of solutions from those in BD theory, since we have introduced a different coupling between matter and gravitational fields.

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Accelerated Cosmic Expansion: Proceedings of the Fourth International Meeting on Gravitation and Cosmology by Salvatore Capozziello (auth.), Claudia Moreno González, José Edgar Madriz Aguilar, Luz Marina Reyes Barrera (eds.)

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