About: Johnson scheme

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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 where and Ek(x) is an Eberlein polynomial defined by

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  • 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 where and Ek(x) is an Eberlein polynomial defined by (en)
  • 조합론에서 존슨 결합 도식(Johnson結合圖式, 영어: Johnson scheme)은 주어진 해밍 무게의 벡터들로 구성된, 2진 해밍 결합 도식의 부분 결합 도식이다. (ko)
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  • 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 where and Ek(x) is an Eberlein polynomial defined by (en)
  • 조합론에서 존슨 결합 도식(Johnson結合圖式, 영어: Johnson scheme)은 주어진 해밍 무게의 벡터들로 구성된, 2진 해밍 결합 도식의 부분 결합 도식이다. (ko)
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  • Johnson scheme (en)
  • 존슨 결합 도식 (ko)
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