Information on Result #1021880

Linear OOA(7101, 7686854, F7, 3, 9) (dual of [(7686854, 3), 23060461, 10]-NRT-code), using generalized (u, u+v)-construction based on
  1. linear OOA(71, 8, F7, 3, 1) (dual of [(8, 3), 23, 2]-NRT-code), using
  2. linear OOA(72, 8, F7, 3, 2) (dual of [(8, 3), 22, 3]-NRT-code), using
  3. linear OOA(76, 434, F7, 3, 3) (dual of [(434, 3), 1296, 4]-NRT-code), using
  4. linear OOA(726, 3843202, F7, 3, 4) (dual of [(3843202, 3), 11529580, 5]-NRT-code), using
  5. linear OOA(766, 3843202, F7, 3, 9) (dual of [(3843202, 3), 11529540, 10]-NRT-code), using
    • trace code [i] based on linear OOA(4933, 1921601, F49, 3, 9) (dual of [(1921601, 3), 5764770, 10]-NRT-code), using
      • OOA 3-folding [i] based on linear OA(4933, 5764803, F49, 9) (dual of [5764803, 5764770, 10]-code), using
        • discarding factors / shortening the dual code based on linear OA(4933, 5764805, F49, 9) (dual of [5764805, 5764772, 10]-code), using
          • construction X applied to Ce(8) ⊂ Ce(7) [i] based on
            1. linear OA(4933, 5764801, F49, 9) (dual of [5764801, 5764768, 10]-code), using an extension Ce(8) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,8], and designed minimum distance d ≥ |I|+1 = 9 [i]
            2. linear OA(4929, 5764801, F49, 8) (dual of [5764801, 5764772, 9]-code), using an extension Ce(7) of the primitive narrow-sense BCH-code C(I) with length 5764800 = 494−1, defining interval I = [1,7], and designed minimum distance d ≥ |I|+1 = 8 [i]
            3. linear OA(490, 4, F49, 0) (dual of [4, 4, 1]-code) (see above)

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.