MinT - Information on Result #1118764

Information on Result #1118764

Linear OOA(256⁴⁸, 1699566, F₂₅₆, 5, 13) (dual of [(1699566, 5), 8497782, 14]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(256¹¹, 21846, F₂₅₆, 5, 6) (dual of [(21846, 5), 109219, 7]-NRT-code), using
- OA 3-folding and stacking [i] based on linear OA(256¹¹, 65538, F₂₅₆, 6) (dual of [65538, 65527, 7]-code), using
  - constructionÂ X applied to C_e(5) âŠ‚ C_e(4) [i] based on
    1. linear OA(256¹¹, 65536, F₂₅₆, 6) (dual of [65536, 65525, 7]-code), using an extension C_e(5) of the primitive narrow-sense BCH-code C(I) with length 65535Â = 256²âˆ’1, defining interval IÂ =Â [1,5], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 6 [i]
    2. linear OA(256⁹, 65536, F₂₅₆, 5) (dual of [65536, 65527, 6]-code), using an extension C_e(4) of the primitive narrow-sense BCH-code C(I) with length 65535Â = 256²âˆ’1, defining interval IÂ =Â [1,4], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 5 [i]
    3. linear OA(256⁰, 2, F₂₅₆, 0) (dual of [2, 2, 1]-code), using
      - discarding factors / shortening the dual code based on linear OA(256⁰, s, F₂₅₆, 0) (dual of [s, s, 1]-code) for arbitrarily large s, using
        OA with only one run / dual of code without redundancy [i]
linear OOA(256³⁷, 1677720, F₂₅₆, 5, 13) (dual of [(1677720, 5), 8388563, 14]-NRT-code), using
- OOA 5-folding [i] based on linear OA(256³⁷, 8388600, F₂₅₆, 13) (dual of [8388600, 8388563, 14]-code), using
  - discarding factors / shortening the dual code based on linear OA(256³⁷, large, F₂₅₆, 13) (dual of [large, large−37, 14]-code), using
    - the primitive expurgated narrow-sense BCH-code C(I) with length 16777215Â = 256³âˆ’1, defining interval IÂ =Â [0,12], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 14 [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.