Information on Result #551226
There is no linear OOA(298, 109, F2, 2, 49) (dual of [(109, 2), 120, 50]-NRT-code), because 1 step m-reduction would yield linear OA(297, 109, F2, 48) (dual of [109, 12, 49]-code), but
- construction Y1 [i] would yield
- linear OA(296, 105, F2, 48) (dual of [105, 9, 49]-code), but
- residual code [i] would yield linear OA(248, 56, F2, 24) (dual of [56, 8, 25]-code), but
- adding a parity check bit [i] would yield linear OA(249, 57, F2, 25) (dual of [57, 8, 26]-code), but
- “BJV†bound on codes from Brouwer’s database [i]
- adding a parity check bit [i] would yield linear OA(249, 57, F2, 25) (dual of [57, 8, 26]-code), but
- residual code [i] would yield linear OA(248, 56, F2, 24) (dual of [56, 8, 25]-code), but
- OA(212, 109, S2, 4), but
- discarding factors would yield OA(212, 91, S2, 4), but
- the Rao or (dual) Hamming bound shows that M ≥ 4187 > 212 [i]
- discarding factors would yield OA(212, 91, S2, 4), but
- linear OA(296, 105, F2, 48) (dual of [105, 9, 49]-code), but
Mode: Bound (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 | No linear OOA(298, 109, F2, 3, 49) (dual of [(109, 3), 229, 50]-NRT-code) | [i] | Depth Reduction | |
| 2 | No linear OOA(298, 109, F2, 4, 49) (dual of [(109, 4), 338, 50]-NRT-code) | [i] | ||
| 3 | No linear OOA(298, 109, F2, 5, 49) (dual of [(109, 5), 447, 50]-NRT-code) | [i] | ||
| 4 | No linear OOA(298, 109, F2, 6, 49) (dual of [(109, 6), 556, 50]-NRT-code) | [i] | ||
| 5 | No linear OOA(298, 109, F2, 7, 49) (dual of [(109, 7), 665, 50]-NRT-code) | [i] | ||
| 6 | No linear OOA(298, 109, F2, 8, 49) (dual of [(109, 8), 774, 50]-NRT-code) | [i] | ||