Information on Result #689679

Linear OA(969, 6565, F9, 20) (dual of [6565, 6496, 21]-code), using construction X applied to Ce(19) ⊂ Ce(18) based on
  1. linear OA(969, 6561, F9, 20) (dual of [6561, 6492, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 6560 = 94−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
  2. linear OA(965, 6561, F9, 19) (dual of [6561, 6496, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 6560 = 94−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
  3. linear OA(90, 4, F9, 0) (dual of [4, 4, 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 OA(970, 6566, F9, 20) (dual of [6566, 6496, 21]-code) [i]Code Embedding in Larger Space
2Linear OOA(969, 3282, F9, 2, 20) (dual of [(3282, 2), 6495, 21]-NRT-code) [i]OOA Folding
3Linear OOA(969, 2188, F9, 3, 20) (dual of [(2188, 3), 6495, 21]-NRT-code) [i]