Light rays joining two submanifolds in space-times
type: Item
instance of: scholarly article
title: Light rays joining two submanifolds in space-times
zbMATH Open document ID: 0880.58005
DOI: 10.1016/S0393-0440(96)00034-4
published in: Journal of Geometry and Physics
publication date: 1998-02-12T00:00:00Z
review text: In the paper [\textit{D. Fortunato}, \textit{F. Giannoni} and \textit{A. Masiello}, J. Geom. Phys. 15, No. 2, 159-188 (1995; Zbl 0819.53037)], lightlike geodesics joining an event to a vertical line have been studied. In this paper, the number of light rays joining two submanifolds in a stationary Lorentz manifold is estimated by the category of the product of the two manifolds under certain additional conditions.
Mathematics Subject Classification ID: 58E05
Mathematics Subject Classification ID: 53C50
Mathematics Subject Classification ID: 83C99
zbMATH DE Number: 1036749
zbMATH Keywords: variational methods
zbMATH Keywords: Lyusternik-Schnirelman category
zbMATH Keywords: general relativity
zbMATH Keywords: light rays
author: Anna Maria Candela
author: Addolorata Salvatore
reviewed by: Kung Ching Chang
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1036749