Information on Result #554634
There is no linear OOA(2240, 248, F2, 2, 122) (dual of [(248, 2), 256, 123]-NRT-code), because 2 step m-reduction would yield linear OA(2238, 248, F2, 120) (dual of [248, 10, 121]-code), but
- residual code [i] would yield linear OA(2118, 127, F2, 60) (dual of [127, 9, 61]-code), but
- residual code [i] would yield linear OA(258, 66, F2, 30) (dual of [66, 8, 31]-code), but
- adding a parity check bit [i] would yield linear OA(259, 67, F2, 31) (dual of [67, 8, 32]-code), but
- “DHM†bound on codes from Brouwer’s database [i]
- adding a parity check bit [i] would yield linear OA(259, 67, F2, 31) (dual of [67, 8, 32]-code), but
- residual code [i] would yield linear OA(258, 66, F2, 30) (dual of [66, 8, 31]-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(2240, 248, F2, 3, 122) (dual of [(248, 3), 504, 123]-NRT-code) | [i] | Depth Reduction | |
| 2 | No linear OOA(2240, 248, F2, 4, 122) (dual of [(248, 4), 752, 123]-NRT-code) | [i] | ||
| 3 | No linear OOA(2240, 248, F2, 5, 122) (dual of [(248, 5), 1000, 123]-NRT-code) | [i] | ||
| 4 | No linear OOA(2240, 248, F2, 6, 122) (dual of [(248, 6), 1248, 123]-NRT-code) | [i] | ||
| 5 | No linear OOA(2240, 248, F2, 7, 122) (dual of [(248, 7), 1496, 123]-NRT-code) | [i] | ||
| 6 | No linear OOA(2240, 248, F2, 8, 122) (dual of [(248, 8), 1744, 123]-NRT-code) | [i] | ||