Information on Result #733158

Linear OA(2794, 841, F27, 34) (dual of [841, 747, 35]-code), using (u, u+v)-construction based on
  1. linear OA(2730, 109, F27, 17) (dual of [109, 79, 18]-code), using
    • construction X applied to Ce(16) ⊂ Ce(14) [i] based on
      1. linear OA(2729, 105, F27, 17) (dual of [105, 76, 18]-code), using an extension Ce(16) of the narrow-sense BCH-code C(I) with length 104 | 272−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
      2. linear OA(2726, 105, F27, 15) (dual of [105, 79, 16]-code), using an extension Ce(14) of the narrow-sense BCH-code C(I) with length 104 | 272−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
      3. linear OA(271, 4, F27, 1) (dual of [4, 3, 2]-code), using
  2. linear OA(2764, 732, F27, 34) (dual of [732, 668, 35]-code), using
    • construction XX applied to C1 = C([727,31]), C2 = C([0,32]), C3 = C1 + C2 = C([0,31]), and C∩ = C1 ∩ C2 = C([727,32]) [i] based on
      1. linear OA(2762, 728, F27, 33) (dual of [728, 666, 34]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,31}, and designed minimum distance d ≥ |I|+1 = 34 [i]
      2. linear OA(2762, 728, F27, 33) (dual of [728, 666, 34]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,32], and designed minimum distance d ≥ |I|+1 = 34 [i]
      3. linear OA(2764, 728, F27, 34) (dual of [728, 664, 35]-code), using the primitive BCH-code C(I) with length 728 = 272−1, defining interval I = {−1,0,…,32}, and designed minimum distance d ≥ |I|+1 = 35 [i]
      4. linear OA(2760, 728, F27, 32) (dual of [728, 668, 33]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 728 = 272−1, defining interval I = [0,31], and designed minimum distance d ≥ |I|+1 = 33 [i]
      5. linear OA(270, 2, F27, 0) (dual of [2, 2, 1]-code), using
      6. linear OA(270, 2, F27, 0) (dual of [2, 2, 1]-code) (see above)

Mode: Constructive and linear.

Optimality

Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.

Other Results with Identical Parameters

None.

Depending Results

The following results depend on this result:

ResultThis
result
only
Method
1Linear OOA(2794, 420, F27, 2, 34) (dual of [(420, 2), 746, 35]-NRT-code) [i]OOA Folding