Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1995-05-15
Grav.Cosmol. 1 (1995) 155-159
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
6 pages, Latex, 1 figure (inside the Latex file). To appear in Gravitation and Cosmology journal
Scientific paper
Vacuum static, axially symmetric space-times in $D$-dimensional general relativity with a Ricci-flat internal space are discussed. It is shown, in particular, that some of the monopole-type solutions are free of curvature singularities and their source can be a disk membrane bounded by a ring with a string or branching type singularity. Another possibility is a wormhole configuration where a particle can penetrate to another spatial infinity by passing through a ring with a string or branching type singularity. The results apply, in particular, to vacuum and scalar-vacuum configurations in conventional general relativity.
Bronnikov Kirill A.
Melnikov Vitaly N.
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