Information on Result #735320

Linear OA(8180, 538007, F81, 21) (dual of [538007, 537927, 22]-code), using (u, u+v)-construction based on
  1. linear OA(8119, 6563, F81, 10) (dual of [6563, 6544, 11]-code), using
  2. linear OA(8161, 531444, F81, 21) (dual of [531444, 531383, 22]-code), using
    • construction X applied to Ce(20) ⊂ Ce(19) [i] based on
      1. linear OA(8161, 531441, F81, 21) (dual of [531441, 531380, 22]-code), using an extension Ce(20) of the primitive narrow-sense BCH-code C(I) with length 531440 = 813−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
      2. 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]
      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(8180, 269003, F81, 2, 21) (dual of [(269003, 2), 537926, 22]-NRT-code) [i]OOA Folding
2Linear OOA(8180, 179335, F81, 3, 21) (dual of [(179335, 3), 537925, 22]-NRT-code) [i]
3Linear OOA(8180, 134501, F81, 4, 21) (dual of [(134501, 4), 537924, 22]-NRT-code) [i]