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Consider an -dimensional vector space over the finite field
of size two. Define the
distance between two vectors
and
in this vector space as the number
of coordinates that have different values.
- 1.
- Let . Construct a vector subspace consisting of four vectors in which any pair of distinct
vectors has distance at least three.
- 2.
- Let . Construct a vector subspace consisting of 32 vectors in which any pair of distinct
vectors has distance at least five.
Reynald AFFELDT
2000-06-08