ON SPHERICALLY SYMMETRIC SOLUTIONS IN D-DIMENSIONAL DILATON GRAVITY
| dc.creator | Bronnikov, K. A. | |
| dc.date | 1995-05-15 | |
| dc.date | 1995-05-18 | |
| dc.date.accessioned | 2026-07-07T08:59:28Z | |
| dc.date.available | 2026-07-07T08:59:28Z | |
| dc.description | Exact static, spherically symmetric solutions to the Einstein-Abelian gauge-dilaton equations, in $D$-dimensional gravity with a chain of $n$ Ricci-flat internal spaces are considered, with the gauge field potential having three nonzero components: the temporal, Coulomb-like one, the one pointing to one of the extra dimensions, and the one responsible for a radial magnetic field. For dilaton coupling implied by string theory an $(n+5)$-parametric family of exact solutions is obtained, while for other dilaton couplings only $(n+3)$-parametric ones. The geometric properties and special cases of the solutions are discussed, in particular, those when there are horizons in the space-time. Two types of horizons are distinguished: the conventional black-hole (BH) ones and those at which the physical section of the space-time changes its signature ({\it T-horizons}). Two theorems are proved, one fixing the BH and T-horizon existence conditions, the other discarding the possibility of a regular center. Different conformal gauges are used to characterize the system from the $D$-dimensional and 4-dimensional viewpoints. | |
| dc.description | 13 pages, latex, no figures. To appear in Grav.& Cosmology journ | |
| dc.identifier | https://arxiv.org/abs/gr-qc/9505020 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/9505020 | |
| dc.identifier | Grav.Cosmol. 1 (1995) 67-78 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147726 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | ON SPHERICALLY SYMMETRIC SOLUTIONS IN D-DIMENSIONAL DILATON GRAVITY | |
| dc.type | text |