Information on Result #899847

Linear OOA(2575, 7886, F25, 2, 20) (dual of [(7886, 2), 15697, 21]-NRT-code), using (u, u+v)-construction based on
  1. linear OOA(2514, 66, F25, 2, 10) (dual of [(66, 2), 118, 11]-NRT-code), using
  2. linear OOA(2561, 7820, F25, 2, 20) (dual of [(7820, 2), 15579, 21]-NRT-code), using
    • OOA 2-folding [i] based on linear OA(2561, 15640, F25, 20) (dual of [15640, 15579, 21]-code), using
      • construction X applied to Ce(19) ⊂ Ce(15) [i] based on
        1. linear OA(2558, 15625, F25, 20) (dual of [15625, 15567, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
        2. linear OA(2546, 15625, F25, 16) (dual of [15625, 15579, 17]-code), using an extension Ce(15) of the primitive narrow-sense BCH-code C(I) with length 15624 = 253−1, defining interval I = [1,15], and designed minimum distance d ≥ |I|+1 = 16 [i]
        3. linear OA(253, 15, F25, 3) (dual of [15, 12, 4]-code or 15-arc in PG(2,25) or 15-cap in PG(2,25)), 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(2575, 1577, F25, 22, 20) (dual of [(1577, 22), 34619, 21]-NRT-code) [i]OOA Folding and Stacking with Additional Row