Information on Result #2174917
Linear OA(285, 533, F2, 19) (dual of [533, 448, 20]-code), using adding a parity check bit based on linear OA(284, 532, F2, 18) (dual of [532, 448, 19]-code), using
- construction XX applied to C1 = C([509,14]), C2 = C([1,16]), C3 = C1 + C2 = C([1,14]), and C∩ = C1 ∩ C2 = C([509,16]) [i] based on
- linear OA(273, 511, F2, 17) (dual of [511, 438, 18]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,14}, and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(272, 511, F2, 16) (dual of [511, 439, 17]-code), using the primitive narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [1,16], and designed minimum distance d ≥ |I|+1 = 17 [i]
- linear OA(282, 511, F2, 19) (dual of [511, 429, 20]-code), using the primitive BCH-code C(I) with length 511 = 29−1, defining interval I = {−2,−1,…,16}, and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(263, 511, F2, 14) (dual of [511, 448, 15]-code), using the primitive narrow-sense BCH-code C(I) with length 511 = 29−1, defining interval I = [1,14], and designed minimum distance d ≥ |I|+1 = 15 [i]
- linear OA(21, 11, F2, 1) (dual of [11, 10, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
- linear OA(21, 10, F2, 1) (dual of [10, 9, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s (see above)
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 OA(285, 533, F2, 18) (dual of [533, 448, 19]-code) | [i] | Strength Reduction | |
| 2 | Linear OA(286, 534, F2, 19) (dual of [534, 448, 20]-code) | [i] | Code Embedding in Larger Space | |
| 3 | Linear OOA(285, 266, F2, 2, 19) (dual of [(266, 2), 447, 20]-NRT-code) | [i] | OOA Folding | |
| 4 | Linear OOA(285, 133, F2, 4, 19) (dual of [(133, 4), 447, 20]-NRT-code) | [i] | ||
| 5 | Linear OOA(285, 76, F2, 7, 19) (dual of [(76, 7), 447, 20]-NRT-code) | [i] | ||