Information on Result #1568406

Linear OOA(2246, 2796408, F2, 3, 18) (dual of [(2796408, 3), 8388978, 19]-NRT-code), using (u, u+v)-construction based on
  1. linear OOA(239, 207, F2, 3, 9) (dual of [(207, 3), 582, 10]-NRT-code), using
    • embedding of OOA with Gilbert–VarÅ¡amov bound [i] based on linear OOA(239, 207, F2, 2, 9) (dual of [(207, 2), 375, 10]-NRT-code), using
      • discarding factors / shortening the dual code based on linear OOA(239, 265, F2, 2, 9) (dual of [(265, 2), 491, 10]-NRT-code), using
        • OOA 2-folding [i] based on linear OA(239, 530, F2, 9) (dual of [530, 491, 10]-code), using
          • discarding factors / shortening the dual code based on linear OA(239, 531, F2, 9) (dual of [531, 492, 10]-code), using
            • construction XX applied to C1 = C([509,4]), C2 = C([0,6]), C3 = C1 + C2 = C([0,4]), and C∩ = C1 ∩ C2 = C([509,6]) [i] based on
              1. linear OA(228, 511, F2, 7) (dual of [511, 483, 8]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,4}, and designed minimum distance d ≥ |I|+1 = 8 [i]
              2. linear OA(228, 511, F2, 7) (dual of [511, 483, 8]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [0,6], and designed minimum distance d ≥ |I|+1 = 8 [i]
              3. linear OA(237, 511, F2, 9) (dual of [511, 474, 10]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,6}, and designed minimum distance d ≥ |I|+1 = 10 [i]
              4. linear OA(219, 511, F2, 5) (dual of [511, 492, 6]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [0,4], and designed minimum distance d ≥ |I|+1 = 6 [i]
              5. linear OA(21, 10, F2, 1) (dual of [10, 9, 2]-code), using
              6. linear OA(21, 10, F2, 1) (dual of [10, 9, 2]-code) (see above)
  2. linear OOA(2207, 2796201, F2, 3, 18) (dual of [(2796201, 3), 8388396, 19]-NRT-code), using
    • OOA 3-folding [i] based on linear OA(2207, large, F2, 18) (dual of [large, large−207, 19]-code), using
      • the primitive narrow-sense BCH-code C(I) with length 8388607 = 223−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]

Mode: 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.