Johnson scheme
Summary
In mathematics, the Johnson scheme, named after Selmer M. Johnson, is also known as the triangular association scheme. It consists of the set of all binary vectors X of length ℓ and weight n, such that . Two vectors x, y ∈ X are called ith associates if dist(x, y) = 2i for i = 0, 1, ..., n. The eigenvalues are given by
Further reading
- Wikipedia, page 22649423, revision 1169848354, Johnson scheme. adopted
About this page
| Tag | HZ5CX9Y5W9 |
|---|---|
| URI | m2://HZ5CX9Y5W9 |
| Kind | concept |
| Writing | W1 stated |
| Same as | |
| Changed | 4 November 2026 |
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