Abstract
It is determined for which values ofn andd spherical 2-designs ofn points exist in ℝd. And an explicit construction is given when they exist.
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Mimura, Y. A construction of spherical 2-design. Graphs and Combinatorics 6, 369–372 (1990). https://doi.org/10.1007/BF01787704
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DOI: https://doi.org/10.1007/BF01787704