Information on Result #735338

Linear OA(8175, 531774, F81, 20) (dual of [531774, 531699, 21]-code), using (u, u+v)-construction based on
  1. linear OA(8117, 330, F81, 10) (dual of [330, 313, 11]-code), using
  2. linear OA(8158, 531444, F81, 20) (dual of [531444, 531386, 21]-code), using
    • construction X applied to Ce(19) ⊂ Ce(18) [i] based on
      1. linear OA(8158, 531441, F81, 20) (dual of [531441, 531383, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 531440 = 813−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
      2. linear OA(8155, 531441, F81, 19) (dual of [531441, 531386, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 531440 = 813−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
      3. linear OA(810, 3, F81, 0) (dual of [3, 3, 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(8175, 265887, F81, 2, 20) (dual of [(265887, 2), 531699, 21]-NRT-code) [i]OOA Folding
2Linear OOA(8175, 177258, F81, 3, 20) (dual of [(177258, 3), 531699, 21]-NRT-code) [i]