Information on Result #691131
Linear OA(936, 85, F9, 22) (dual of [85, 49, 23]-code), using construction X applied to Ce(21) ⊂ Ce(19) based on
- linear OA(935, 81, F9, 22) (dual of [81, 46, 23]-code), using an extension Ce(21) of the primitive narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [1,21], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(932, 81, F9, 20) (dual of [81, 49, 21]-code), using an extension Ce(19) of the primitive narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [1,19], and designed minimum distance d ≥ |I|+1 = 20 [i]
- linear OA(91, 4, F9, 1) (dual of [4, 3, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(91, s, F9, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, 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(935, 84, F9, 21) (dual of [84, 49, 22]-code) | [i] | Truncation | |
| 2 | Linear OOA(936, 42, F9, 2, 22) (dual of [(42, 2), 48, 23]-NRT-code) | [i] | OOA Folding | |