MinT - Information on Result #1079808

Information on Result #1079808

Linear OOA(2²⁴³, 4202490, F₂, 4, 13) (dual of [(4202490, 4), 16809717, 14]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(2⁶⁴, 2097149, F₂, 4, 6) (dual of [(2097149, 4), 8388532, 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(2¹⁷⁹, 2105341, F₂, 4, 13) (dual of [(2105341, 4), 8421185, 14]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(2⁴⁰, 8191, F₂, 4, 6) (dual of [(8191, 4), 32724, 7]-NRT-code), using
    - extracting embedded OOA [i] based on digital (34, 40, 8191)-net over F₂, using
      - 1 times m-reduction [i] based on digital (34, 41, 8191)-net over F₂, using
        nets constructed from net-embeddable BCH codes [i]
  2. linear OOA(2¹³⁹, 2097150, F₂, 4, 13) (dual of [(2097150, 4), 8388461, 14]-NRT-code), using
    - OOA 4-folding [i] based on linear OA(2¹³⁹, 8388600, F₂, 13) (dual of [8388600, 8388461, 14]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹³⁹, large, F₂, 13) (dual of [large, large−139, 14]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 8388609Â | 2⁴⁶âˆ’1, defining interval IÂ =Â [0,6], and minimum distance dÂ â‰¥ |{−6,−5,…,6}|+1Â =Â 14 (BCH-bound) [i]

Mode: Constructive and linear.

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