Information on Result #698906

Linear OA(6447, 4116, F64, 21) (dual of [4116, 4069, 22]-code), using construction X applied to Ce(20) ⊂ Ce(13) based on
  1. linear OA(6441, 4096, F64, 21) (dual of [4096, 4055, 22]-code), using an extension Ce(20) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,20], and designed minimum distance d ≥ |I|+1 = 21 [i]
  2. linear OA(6427, 4096, F64, 14) (dual of [4096, 4069, 15]-code), using an extension Ce(13) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,13], and designed minimum distance d ≥ |I|+1 = 14 [i]
  3. linear OA(646, 20, F64, 6) (dual of [20, 14, 7]-code or 20-arc in PG(5,64)), 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
1OA(3257, 4116, S32, 21) [i]Discarding Parts of the Base for OAs
2Linear OOA(6447, 2961, F64, 2, 21) (dual of [(2961, 2), 5875, 22]-NRT-code) [i]Embedding of OOA with Gilbert–VarÅ¡amov Bound
3Linear OOA(6447, 2961, F64, 3, 21) (dual of [(2961, 3), 8836, 22]-NRT-code) [i]
4Digital (26, 47, 2961)-net over F64 [i]
5Linear OOA(6447, 2058, F64, 2, 21) (dual of [(2058, 2), 4069, 22]-NRT-code) [i]OOA Folding
6Linear OOA(6447, 1372, F64, 3, 21) (dual of [(1372, 3), 4069, 22]-NRT-code) [i]