MinT - Information on Result #1165384

Information on Result #1165384

Linear OOA(2²⁵⁷, 1081343, F₂, 8, 17) (dual of [(1081343, 8), 8650487, 18]-NRT-code), using OOA 4-folding based on linear OOA(2²⁵⁷, 4325372, F₂, 2, 17) (dual of [(4325372, 2), 8650487, 18]-NRT-code), using

discarding factors / shortening the dual code based on linear OOA(2²⁵⁷, 4325373, F₂, 2, 17) (dual of [(4325373, 2), 8650489, 18]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(2⁷², 131072, F₂, 2, 8) (dual of [(131072, 2), 262072, 9]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(2⁷², 262144, F₂, 8) (dual of [262144, 262072, 9]-code), using
      - 1 times truncation [i] based on linear OA(2⁷³, 262145, F₂, 9) (dual of [262145, 262072, 10]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 262145Â | 2³⁶âˆ’1, defining interval IÂ =Â [0,4], and minimum distance dÂ â‰¥ |{−4,−3,…,4}|+1Â =Â 10 (BCH-bound) [i]
  2. linear OOA(2¹⁸⁵, 4194301, F₂, 2, 17) (dual of [(4194301, 2), 8388417, 18]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(2¹⁸⁵, 8388602, F₂, 17) (dual of [8388602, 8388417, 18]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹⁸⁵, large, F₂, 17) (dual of [large, large−185, 18]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 8388609Â | 2⁴⁶âˆ’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.