Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/30622
Título: | On the conservation of superenergy and its applications |
Autor(es): | García-Parrado Gómez-Lobo, Alfonso |
Palavras-chave: | General Relativity Superenergy tensor Global existence Conservation law Conserved current Superenergy estimate Bel–Robinson tensor |
Data: | 16-Jun-2014 |
Editora: | IOP Publishing |
Revista: | Classical and quantum gravity |
Resumo(s): | In this work we present a geometric identity involving the Bel-Robinson tensor which is formally similar to the Sparling identity (which involves the Einstein tensor through the Einstein 3-form). In our identity the Bel-Robinson tensor enters through the {\em Bel-Robinson 3-form} which, we believe, is introduced in the literature for the first time. The meaning of this identity is that it is possible to formulate a {\em generic} conservation law for the quantity represented by the Bel-Robinson tensor (superenergy). We also show how one can use the Bel-Robinson 3-form to estimate the components of the Bel-Robinson tensor which are computed with respect to the causal elements of a frame. This estimate could be useful in a global existence proof of the solutions of a theory of gravitation in dimension four. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/30622 |
DOI: | 10.1088/0264-9381/31/13/135008 |
ISSN: | 0264-9381 |
Versão da editora: | http://iopscience.iop.org/0264-9381/31/13/135008/ |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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SuperenergyConservation.pdf Acesso restrito! | Texto completo do artigo | 238,33 kB | Adobe PDF | Ver/Abrir |