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https://hdl.handle.net/20.500.14279/14223
Τίτλος: | Intersecting hyper-surfaces in dimensionally continued topological density gravitation | Συγγραφείς: | Gravanis, Elias Willison, Steven |
Major Field of Science: | Engineering and Technology | Field Category: | Civil Engineering | Λέξεις-κλειδιά: | Gravitation;Algebra;Cosmological constant | Ημερομηνία Έκδοσης: | 25-Οκτ-2004 | Πηγή: | Journal of Mathematical Physics, 2004, vol. 45, no.11, pp. 4223-4238 | Volume: | 45 | Issue: | 11 | Start page: | 4223 | End page: | 4238 | Περιοδικό: | Journal of Mathematical Physics | Περίληψη: | We consider intersecting hypersurfaces in curved spacetime with gravity governed by a class of actions which are topological invariants in lower dimensionality. Along with the Chern-Simons boundary terms there is a sequence of intersection terms that should be added in the action functional for a well defined variational principle. We construct them in the case of Characteristic Classes, obtaining relations which have a general topological meaning. Applying them on a manifold with a discontinuous connection 1-form we obtain the gravity action functional of the system and show that the junction conditions can be found in a simple algebraic way. At the sequence of intersections there are localised independent energy tensors, constrained only by energy conservation. We work out explicitly the simplest non trivial case. | Description: | 20 pages, 3 figures. Accepted for Journal Math. Phys. Some minor changes and corrections | ISSN: | 00222488 | DOI: | 10.1063/1.1794841 | Rights: | © AIP Publishing | Type: | Article | Affiliation: | King's College London | Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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