MinT - Information on Result #1234990

Information on Result #1234990

Linear OOA(2²⁴², 4202491, F₂, 4, 12) (dual of [(4202491, 4), 16809722, 13]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(2⁶⁴, 2097150, F₂, 4, 6) (dual of [(2097150, 4), 8388536, 7]-NRT-code), using
- extracting embedded OOA [i] based on digital (58, 64, 2097150)-net over F₂, using
  - 1 times m-reduction [i] based on digital (58, 65, 2097150)-net over F₂, using
    - net defined by OOA [i] based on linear OOA(2⁶⁵, 2097150, F₂, 7, 7) (dual of [(2097150, 7), 14679985, 8]-NRT-code), using
      - OOA stacking with additional row [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(2¹⁷⁸, 2105341, F₂, 4, 12) (dual of [(2105341, 4), 8421186, 13]-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(2¹³⁸, 2097150, F₂, 4, 12) (dual of [(2097150, 4), 8388462, 13]-NRT-code), using
    - OOA 4-folding [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.

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.