Information on Result #735970

Linear OA(25653, 65805, F256, 20) (dual of [65805, 65752, 21]-code), using (u, u+v)-construction based on
  1. linear OA(25613, 264, F256, 10) (dual of [264, 251, 11]-code), using
  2. linear OA(25640, 65541, F256, 20) (dual of [65541, 65501, 21]-code), using
    • construction X applied to Ce(19) ⊂ Ce(17) [i] based on
      1. linear OA(25639, 65536, F256, 20) (dual of [65536, 65497, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
      2. linear OA(25635, 65536, F256, 18) (dual of [65536, 65501, 19]-code), using an extension Ce(17) of the primitive narrow-sense BCH-code C(I) with length 65535 = 2562−1, defining interval I = [1,17], and designed minimum distance d ≥ |I|+1 = 18 [i]
      3. linear OA(2561, 5, F256, 1) (dual of [5, 4, 2]-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(25653, 21935, F256, 3, 20) (dual of [(21935, 3), 65752, 21]-NRT-code) [i]OOA Folding
2Linear OOA(25653, 13161, F256, 5, 20) (dual of [(13161, 5), 65752, 21]-NRT-code) [i]