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A necessary and sufficient condition for a ââsphereâ to separate points in euclidean, hyperbolic, or spherical space
Valentine, J. E., Wayment, S. G.Volume:
176
Year:
1973
Journal:
Transactions of the American Mathematical Society
DOI:
10.1090/s0002-9947-1973-0313927-4
File:
PDF, 884 KB
1973