Information on Result #874152
Linear OOA(6439, 2049, F64, 2, 20) (dual of [(2049, 2), 4059, 21]-NRT-code), using OOA 2-folding based on linear OA(6439, 4098, F64, 20) (dual of [4098, 4059, 21]-code), using
- construction X applied to Ce(19) ⊂ Ce(18) [i] based on
- linear OA(6439, 4096, F64, 20) (dual of [4096, 4057, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(6437, 4096, F64, 19) (dual of [4096, 4059, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(640, 2, F64, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(640, s, F64, 0) (dual of [s, s, 1]-code) for arbitrarily large s, 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:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OOA(6449, 2114, F64, 2, 20) (dual of [(2114, 2), 4179, 21]-NRT-code) | [i] | (u, u+v)-Construction for OOAs | |
| 2 | Linear OOA(6450, 2129, F64, 2, 20) (dual of [(2129, 2), 4208, 21]-NRT-code) | [i] | ||
| 3 | Linear OOA(6452, 2153, F64, 2, 20) (dual of [(2153, 2), 4254, 21]-NRT-code) | [i] | ||
| 4 | Linear OOA(6454, 2179, F64, 2, 20) (dual of [(2179, 2), 4304, 21]-NRT-code) | [i] | ||
| 5 | Linear OOA(6455, 2194, F64, 2, 20) (dual of [(2194, 2), 4333, 21]-NRT-code) | [i] | ||
| 6 | Linear OOA(6456, 2226, F64, 2, 20) (dual of [(2226, 2), 4396, 21]-NRT-code) | [i] | ||