WebEquilateral point sets in elliptic geometry. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen: Series A: Mathematical Sciences . 1966;69(3):335 … WebA set of lines in R n is called equiangular if the angle between each pair of lines is the same. We derive new upper bounds on the cardinality of equiangular lines. Let us denote the maximum cardinality of equiangular lines in R n with the common angle arccos α by M α ( n).
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WebSep 1, 2024 · It is well known that there exists a set of equiangular lines with common angle arccos (α) satisfying the absolute bound for each 1/α ∈ {2, √ 5, 3, 5}. Cao et al. showed that a set of... WebAug 1, 2024 · Equilateral point-sets in elliptic two- and three-dimensional spaces. Nieuw Arch. Wisk., 22 (1948), pp. 355-362. View Record in Scopus Google Scholar. ... Equilateral point sets in elliptic geometry. Indag. Math., 28 (1966), pp. 335-348. View Record in Scopus Google Scholar. A. Neumaier. ladpw groundwater wells
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WebJan 1, 2006 · Inequalities are obtained between the various parameters of a distance-regular graph. In particular, if k 1 is the valency and k 2 is the number of vertices at distance two from a given vertex, then in general k 1 ⩽ k 2.For distance-regular graphs of diameter at least four, k 1 =k 2 if and only if the graph is simply a circuit. However when the … WebA. C. Thompson, Minkowski Geometry, Encyclopedia of Mathematics and its Applications, Cambridge University Press, 63 (1996). J. H. van Lint and J. J. Seidel, Equilateral point sets in elliptic geometry, Indagationes Mathematicae, Vol. 28 (1966) pp. 335–348. Google Scholar Download references WebSeidel's selected papers are divided into four areas: graphs and designs; lines with few angles; matrices and forms; and non-Euclidean geometry. A list of all of Seidel's … property discount