MinT - Information on Result #1070898

Information on Result #1070898

Linear OOA(128⁷⁷, 4205, F₁₂₈, 4, 29) (dual of [(4205, 4), 16743, 30]-NRT-code), using OOA 2-folding based on linear OOA(128⁷⁷, 8410, F₁₂₈, 2, 29) (dual of [(8410, 2), 16743, 30]-NRT-code), using

discarding factors / shortening the dual code based on linear OOA(128⁷⁷, 8411, F₁₂₈, 2, 29) (dual of [(8411, 2), 16745, 30]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(128¹⁹, 216, F₁₂₈, 2, 14) (dual of [(216, 2), 413, 15]-NRT-code), using
    - extended algebraic-geometric NRT-code AG_e(2;F,417P) [i] based on function field F/F₁₂₈ with g(F) = 5 and N(F) ≥ 216, using
      - a function field by SÃ©mirat [i]
  2. linear OOA(128⁵⁸, 8195, F₁₂₈, 2, 29) (dual of [(8195, 2), 16332, 30]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(128⁵⁸, 16390, F₁₂₈, 29) (dual of [16390, 16332, 30]-code), using
      - constructionÂ X applied to C([0,14]) âŠ‚ C([0,13]) [i] based on
        linear OA(128⁵⁷, 16385, F₁₂₈, 29) (dual of [16385, 16328, 30]-code), using the expurgated narrow-sense BCH-code C(I) with length 16385Â | 128⁴âˆ’1, defining interval IÂ =Â [0,14], and minimum distance dÂ â‰¥ |{−14,−13,…,14}|+1Â =Â 30 (BCH-bound) [i]
        linear OA(128⁵³, 16385, F₁₂₈, 27) (dual of [16385, 16332, 28]-code), using the expurgated narrow-sense BCH-code C(I) with length 16385Â | 128⁴âˆ’1, defining interval IÂ =Â [0,13], and minimum distance dÂ â‰¥ |{−13,−12,…,13}|+1Â =Â 28 (BCH-bound) [i]
        linear OA(128¹, 5, F₁₂₈, 1) (dual of [5, 4, 2]-code), using
        discarding factors / shortening the dual code based on linear OA(128¹, s, F₁₂₈, 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

None.