Junction Conditions for Signature Change
| dc.creator | Hayward, Sean A. | |
| dc.date | 1993-03-29 | |
| dc.date | 1994-12-12 | |
| dc.date.accessioned | 2026-07-07T08:59:21Z | |
| dc.date.available | 2026-07-07T08:59:21Z | |
| dc.description | The change of signature of a metric is explained using simple examples and methods. The Klein-Gordon field on a signature-changing background is discussed, and it is shown how the approach of Dray et al.\ can be corrected to ensure that the Klein-Gordon equation holds. Isotropic cosmologies are discussed, and it is shown how the approach of Ellis et al.\ can be corrected to ensure that the Einstein-Klein-Gordon equations hold. A straightforward calculation shows that a well defined Ricci tensor requires the standard junction condition, namely vanishing of the second fundamental form of the junction surface. | |
| dc.description | 13 pages. TeX. Revised to discuss further mistaken papers | |
| dc.identifier | https://arxiv.org/abs/gr-qc/9303034 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/9303034 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147677 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Junction Conditions for Signature Change | |
| dc.type | text |