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Three-dimensional Topology-Independent Methods to Look for Global Topology

Boudewijn F. Roukema·Vincent Blanloeil
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Abstract

The space-like hypersurface of the Universe at the present cosmological time is a three-dimensional manifold. A non-trivial global topology of this space-like hypersurface would imply that the apparently observable universe (the sphere of particle horizon radius) could contain several images of the single, physical Universe. Recent three-dimensional techniques for constraining and/or detecting this topology are reviewed. Initial applications of these techniques using X-ray bright clusters of galaxies and quasars imply (weak) candidates for a non-trivial topology.

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Boudewijn F. Roukema, Vincent Blanloeil. 1998-05-30. Three-dimensional Topology-Independent Methods to Look for Global Topology. https://doi.org/10.1088/0264-9381%2F15%2F9%2F012

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