A problem of Kusner on equilateral sets |
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Authors: | Email author" target="_blank">K?J?SwanepoelEmail author |
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Institution: | (1) Department of Mathematics, Applied Mathematics and Astronomy, University of South Africa, P.O. Box 392, 0003 Pretoria, South Africa |
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Abstract: | R. B. Kusner R. Guy, Amer. Math. Monthly 90, 196-199 (1983)]
asked whether a set of vectors in
such that the
distance between any pair is 1, has cardinality at most
d + 1.
We show that this is true for p = 4
and any
, and false for all 1<p<2 with d sufficiently large, depending on p. More
generally we show that the maximum cardinality is at most
if p is an even integer, and at least
if 1<p<2, where
depends on p.
Received: 5 May 2003 |
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Keywords: | Primary 52C10 Secondary 52A21 46B20 |
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