MinT - Information on Result #2495368

Information on Result #2495368

Linear OOA(4¹⁸⁰, 4195330, F₄, 2, 17) (dual of [(4195330, 2), 8390480, 18]-NRT-code), using 4¹ times duplication based on linear OOA(4¹⁷⁹, 4195330, F₄, 2, 17) (dual of [(4195330, 2), 8390481, 18]-NRT-code), using

1 times NRT-code embedding in larger space [i] based on linear OOA(4¹⁷⁷, 4195329, F₄, 2, 17) (dual of [(4195329, 2), 8390481, 18]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(4³², 1028, F₄, 2, 8) (dual of [(1028, 2), 2024, 9]-NRT-code), using
    - extracting embedded OOA [i] based on digital (24, 32, 1028)-net over F₄, using
      - trace code for nets [i] based on digital (0, 8, 257)-net over F₂₅₆, using
        net from sequence [i] based on digital (0, 256)-sequence over F₂₅₆, using
        generalized Faure sequence [i]
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₅₆ with g(F) = 0 and N(F) ≥ 257, using
        the rational function field F₂₅₆(x) [i]
        Niederreiter sequence [i]
  2. linear OOA(4¹⁴⁵, 4194301, F₄, 2, 17) (dual of [(4194301, 2), 8388457, 18]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(4¹⁴⁵, 8388602, F₄, 17) (dual of [8388602, 8388457, 18]-code), using
      - discarding factors / shortening the dual code based on linear OA(4¹⁴⁵, large, F₄, 17) (dual of [large, large−145, 18]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 16777217Â | 4²⁴âˆ’1, defining interval IÂ =Â [0,8], and minimum distance dÂ â‰¥ |{−8,−7,…,8}|+1Â =Â 18 (BCH-bound) [i]

Mode: Constructive and linear.

Optimality

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

Other Results with Identical Parameters

None.

Depending Results

None.