Papers › Equiangular lines in Euclidean spaces: dimensions 17 and 18
Equiangular lines in Euclidean spaces: dimensions 17 and 18
Gary R. W. Greaves, Jeven Syatriadi, Pavlo Yatsyna
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We show that the maximum cardinality of an equiangular line system in 17 dimensions is 48, thereby solving a longstanding open problem. Furthermore, by giving an explicit construction, we improve the lower bound on the maximum cardinality of an equiangular line system in 18 dimensions to 57.
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