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dc.contributor.authorDowker, H.F.-
dc.contributor.authorGarcia, R.S.-
dc.contributor.authorSurya, Sumati-
dc.date.accessioned2012-05-29T10:37:57Z-
dc.date.available2012-05-29T10:37:57Z-
dc.date.issued2000-02-
dc.identifier.citationClassical and Quantum Gravity, 2000, Vol.17, Issue 3, p. 697-712en
dc.identifier.issn0264-9381-
dc.identifier.issn1361-6382 (online)-
dc.identifier.urihttp://hdl.handle.net/2289/4552-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractStudies in 1 + 1 dimensions suggest that causally discontinuous topology-changing spacetimes are suppressed in quantum gravity. Borde and Sorkin have conjectured that causal discontinuities are associated precisely with index 1 or n - 1 Morse points in topology-changing spacetimes built from Morse functions. We establish a weaker form of this conjecture. Namely, if a Morse function f on a compact cobordism has critical points of index 1 or n - 1, then all the Morse geometries associated with f are causally discontinuous, while if f has no critical points of index 1 or n - 1, then there exist associated Morse geometries which are causally continuous.en
dc.language.isoenen
dc.publisherInstitute of Physicsen
dc.relation.urihttp://arxiv.org/abs/gr-qc/9910034en
dc.relation.urihttp://dx.doi.org/10.1088/0264-9381/17/3/308en
dc.relation.urihttp://adsabs.harvard.edu/abs/2000CQGra..17..697Den
dc.rights2000, Institute of Physicsen
dc.titleMorse index and causal continuity. A criterion for topology change in quantum gravityen
dc.typeArticleen
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