MinT - Information on Result #2205536

Information on Result #2205536

Linear OA(4²⁰⁸, 328, F₄, 80) (dual of [328, 120, 81]-code), using strength reduction based on linear OA(4²⁰⁸, 328, F₄, 81) (dual of [328, 120, 82]-code), using

concatenation of two codes [i] based on
1. linear OA(64⁴², 82, F₆₄, 40) (dual of [82, 40, 41]-code), using
  - constructionÂ X applied to AG(F,38P) âŠ‚ AG(F,40P) [i] based on
    1. linear OA(64⁴¹, 79, F₆₄, 40) (dual of [79, 38, 41]-code), using algebraic-geometric code AG(F,38P) [i] based on function field F/F₆₄ with g(F) = 1 and N(F) ≥ 80, using
      - a function field by SÃ©mirat [i]
    2. linear OA(64³⁹, 79, F₆₄, 38) (dual of [79, 40, 39]-code), using algebraic-geometric code AG(F,40P) [i] based on function field F/F₆₄ with g(F) = 1 and N(F) ≥ 80 (see above)
    3. linear OA(64¹, 3, F₆₄, 1) (dual of [3, 2, 2]-code), using
      - discarding factors / shortening the dual code based on linear OA(64¹, s, F₆₄, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
        parity-check code [i]
2. linear OA(4¹, 4, F₄, 1) (dual of [4, 3, 2]-code), using
  - discarding factors / shortening the dual code based on linear OA(4¹, s, F₄, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
    - parity-check code [i]

Mode: Constructive and linear.

Optimality

Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.

Other Results with Identical Parameters

None.

Depending Results

The following results depend on this result:

	Result		This result only	Method
1	Linear OOA(4²⁰⁸, 164, F₄, 2, 80) (dual of [(164, 2), 120, 81]-NRT-code)	[i]		OOA Folding