Information on Result #640591
Linear OA(9108, 128, F9, 68) (dual of [128, 20, 69]-code), using concatenation of two codes based on
- linear OA(8122, 32, F81, 22) (dual of [32, 10, 23]-code or 32-arc in PG(21,81)), using
- discarding factors / shortening the dual code based on linear OA(8122, 81, F81, 22) (dual of [81, 59, 23]-code or 81-arc in PG(21,81)), using
- Reed–Solomon code RS(59,81) [i]
- discarding factors / shortening the dual code based on linear OA(8122, 81, F81, 22) (dual of [81, 59, 23]-code or 81-arc in PG(21,81)), using
- linear OA(92, 4, F9, 2) (dual of [4, 2, 3]-code or 4-arc in PG(1,9)), using
- discarding factors / shortening the dual code based on linear OA(92, 9, F9, 2) (dual of [9, 7, 3]-code or 9-arc in PG(1,9)), using
- Reed–Solomon code RS(7,9) [i]
- discarding factors / shortening the dual code based on linear OA(92, 9, F9, 2) (dual of [9, 7, 3]-code or 9-arc in PG(1,9)), 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.
Compare with Markus Grassl’s online database of code parameters.
Other Results with Identical Parameters
None.
Depending Results
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OA(9108, 128, F9, 67) (dual of [128, 20, 68]-code) | [i] | Strength Reduction | |
| 2 | Linear OA(9107, 127, F9, 67) (dual of [127, 20, 68]-code) | [i] | Truncation | |
| 3 | Linear OA(9106, 126, F9, 66) (dual of [126, 20, 67]-code) | [i] | ||
| 4 | Linear OOA(9108, 64, F9, 2, 68) (dual of [(64, 2), 20, 69]-NRT-code) | [i] | OOA Folding | |