科研之友
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摘要
The linear programming (LP) bound of Delsarte can be applied to several problems in various branches of mathematics. We describe a general Fourier analytic method to get a slight improvement on this bound. We then apply our method to the problem of mutually unbiased bases (MUBs) to prove that the Fourier family F (a; b) in dimension 6 cannot be extended to a full system of MUBs.
- 出版日期2015-3
