Information on Result #732537

Linear OA(2574, 702, F25, 28) (dual of [702, 628, 29]-code), using (u, u+v)-construction based on
  1. linear OA(2519, 68, F25, 14) (dual of [68, 49, 15]-code), using
  2. linear OA(2555, 634, F25, 28) (dual of [634, 579, 29]-code), using
    • construction XX applied to C1 = C([0,26]), C2 = C([4,27]), C3 = C1 + C2 = C([4,26]), and C∩ = C1 ∩ C2 = C([0,27]) [i] based on
      1. linear OA(2550, 624, F25, 27) (dual of [624, 574, 28]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [0,26], and designed minimum distance d ≥ |I|+1 = 28 [i]
      2. linear OA(2547, 624, F25, 24) (dual of [624, 577, 25]-code), using the primitive BCH-code C(I) with length 624 = 252−1, defining interval I = {4,5,…,27}, and designed minimum distance d ≥ |I|+1 = 25 [i]
      3. linear OA(2552, 624, F25, 28) (dual of [624, 572, 29]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 252−1, defining interval I = [0,27], and designed minimum distance d ≥ |I|+1 = 29 [i]
      4. linear OA(2545, 624, F25, 23) (dual of [624, 579, 24]-code), using the primitive BCH-code C(I) with length 624 = 252−1, defining interval I = {4,5,…,26}, and designed minimum distance d ≥ |I|+1 = 24 [i]
      5. linear OA(253, 8, F25, 3) (dual of [8, 5, 4]-code or 8-arc in PG(2,25) or 8-cap in PG(2,25)), using
      6. linear OA(250, 2, F25, 0) (dual of [2, 2, 1]-code), using

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(2574, 351, F25, 2, 28) (dual of [(351, 2), 628, 29]-NRT-code) [i]OOA Folding