Constraint-free theories of gravitation
| Autor: | Frank B. Estabrook, Hugo D. Wahlquist, R Steve Robinson |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Classical and Quantum Gravity. 16:911-918 |
| ISSN: | 1361-6382 0264-9381 |
| DOI: | 10.1088/0264-9381/16/3/019 |
| Popis: | Lovelock actions (more precisely, extended Gauss-Bonnet forms) when varied as Cartan forms on subspaces of higher dimensional flat Riemannian manifolds, generate well set, causal exterior differential systems. In particular, the Einstein- Hilbert action 4-form, varied on a 4 dimensional subspace of E(sub 10) yields a well set generalized theory of gravity having no constraints. Rcci-flat solutions are selected by initial conditions on a bounding 3-space. |
| Databáze: | OpenAIRE |
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