Information on Result #563858
There is no linear OOA(9121, 254, F9, 2, 105) (dual of [(254, 2), 387, 106]-NRT-code), because 1 step m-reduction would yield linear OA(9120, 254, F9, 104) (dual of [254, 134, 105]-code), but
- construction Y1 [i] would yield
- OA(9119, 137, S9, 104), but
- the linear programming bound shows that M ≥ 1 649743 959172 993378 210906 967412 042627 075594 345401 873516 549288 005769 316925 057707 239007 022709 124331 368314 618099 062045 429872 721572 150117 / 4 003686 893566 937500 > 9119 [i]
- linear OA(9134, 254, F9, 117) (dual of [254, 120, 118]-code), but
- discarding factors / shortening the dual code would yield linear OA(9134, 251, F9, 117) (dual of [251, 117, 118]-code), but
- residual code [i] would yield OA(917, 133, S9, 13), but
- 1 times truncation [i] would yield OA(916, 132, S9, 12), but
- the linear programming bound shows that M ≥ 366759 481988 110308 514537 173543 / 191 274702 307783 > 916 [i]
- 1 times truncation [i] would yield OA(916, 132, S9, 12), but
- residual code [i] would yield OA(917, 133, S9, 13), but
- discarding factors / shortening the dual code would yield linear OA(9134, 251, F9, 117) (dual of [251, 117, 118]-code), but
- OA(9119, 137, S9, 104), 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(9121, 254, F9, 3, 105) (dual of [(254, 3), 641, 106]-NRT-code) | [i] | Depth Reduction | |