From Event: SPIE Optical Engineering + Applications, 2017
We study the problem of packing points in real or complex projective space so that the minimum distance is maximized. Existing bounds for this problem include the Welch and orthoplex bounds. This paper discusses the Levenstein bound, which follows from Delsarte's linear programming bound. We highlight the relationship between the Welch and Levenstein bounds.
John I. Haas, Nathaniel Hammen, and Dustin G. Mixon, "The Levenstein bound for packings in projective spaces," Proc. SPIE 10394, Wavelets and Sparsity XVII, 103940V (Presented at SPIE Optical Engineering + Applications: August 07, 2017; Published: 24 August 2017); https://doi.org/10.1117/12.2275373.
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