Independence for Sets of Topological Spheres
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AbstractConsider a collection of topological spheres in Euclidean space whose intersections are essentially topological spheres. We find a bound for the number of components of the complement of their union and discuss conditions for the bound to be achieved. This is used to give a necessary condition for independence of these sets. A related conjecture of Griinbaum on compact convex sets is discussed.
2012 ◽
Vol 153
(1)
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pp. 111-121
1975 ◽
Vol 77
(3)
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pp. 515-524
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1974 ◽
Vol 25
(1)
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pp. 323-328
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1967 ◽
Vol 7
(3)
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pp. 323-326
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