MinT - Information on Result #1159583

Information on Result #1159583

Linear OOA(2²²⁸, 2796708, F₂, 7, 12) (dual of [(2796708, 7), 19576728, 13]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(2⁶⁴, 2097149, F₂, 7, 6) (dual of [(2097149, 7), 14679979, 7]-NRT-code), using
- OOA stacking with additional row [i] based on linear OOA(2⁶⁴, 2097150, F₂, 3, 6) (dual of [(2097150, 3), 6291386, 7]-NRT-code), using
  - 1 step truncation [i] based on linear OOA(2⁶⁵, 2097151, F₂, 3, 7) (dual of [(2097151, 3), 6291388, 8]-NRT-code), using
    - OOAs constructed from BCH codes [i]
linear OOA(2¹⁶⁴, 1398354, F₂, 7, 12) (dual of [(1398354, 7), 9788314, 13]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(2²⁶, 254, F₂, 7, 6) (dual of [(254, 7), 1752, 7]-NRT-code), using
    - OOA stacking with additional row [i] based on linear OOA(2²⁶, 255, F₂, 3, 6) (dual of [(255, 3), 739, 7]-NRT-code), using
      - strength reduction [i] based on linear OOA(2²⁶, 255, F₂, 3, 7) (dual of [(255, 3), 739, 8]-NRT-code), using
        OOAs constructed from BCH codes [i]
  2. linear OOA(2¹³⁸, 1398100, F₂, 7, 12) (dual of [(1398100, 7), 9786562, 13]-NRT-code), using
    - OA 6-folding and stacking [i] based on linear OA(2¹³⁸, 8388600, F₂, 12) (dual of [8388600, 8388462, 13]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹³⁸, large, F₂, 12) (dual of [large, large−138, 13]-code), using
        the primitive narrow-sense BCH-code C(I) with length 8388607Â = 2²³âˆ’1, defining interval IÂ =Â [1,12], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 13 [i]

Mode: Constructive and linear.

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