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Results tagged with gn.general-topology
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user 14860
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
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Can a closed trefoil appear as a space-time "cut" of an open trefoil?
An open trefoil is a trefoil tied in an infinitely long line. An open trefoil that is at rest in (flat) space, in space-time is a knotted hypersurface.
Different observers in space-time have differe …
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