Bounds for spherical codes

نویسندگان

  • Peter Keevash
  • Benny Sudakov
چکیده

A set C of unit vectors in R is called an L-spherical code if x ·y ∈ L for any distinct x, y in C. Spherical codes have been extensively studied since their introduction in the 1970’s by Delsarte, Goethals and Seidel. In this note we prove a conjecture of Bukh on the maximum size of spherical codes. In particular, we show that for any set of k fixed angles, one can choose at most O(d) lines in R such that any pair of them forms one of these angles.

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تاریخ انتشار 2016