Information on Result #718259
Linear OA(981, 104, F9, 53) (dual of [104, 23, 54]-code), using construction XX applied to C1 = C([70,40]), C2 = C([0,42]), C3 = C1 + C2 = C([0,40]), and C∩ = C1 ∩ C2 = C([70,42]) based on
- linear OA(966, 80, F9, 51) (dual of [80, 14, 52]-code), using the primitive BCH-code C(I) with length 80 = 92−1, defining interval I = {−10,−9,…,40}, and designed minimum distance d ≥ |I|+1 = 52 [i]
- linear OA(961, 80, F9, 43) (dual of [80, 19, 44]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [0,42], and designed minimum distance d ≥ |I|+1 = 44 [i]
- linear OA(970, 80, F9, 53) (dual of [80, 10, 54]-code), using the primitive BCH-code C(I) with length 80 = 92−1, defining interval I = {−10,−9,…,42}, and designed minimum distance d ≥ |I|+1 = 54 [i]
- linear OA(957, 80, F9, 41) (dual of [80, 23, 42]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 80 = 92−1, defining interval I = [0,40], and designed minimum distance d ≥ |I|+1 = 42 [i]
- linear OA(910, 19, F9, 9) (dual of [19, 9, 10]-code), using
- discarding factors / shortening the dual code based on linear OA(910, 20, F9, 9) (dual of [20, 10, 10]-code), using
- extended quadratic residue code Qe(20,9) [i]
- discarding factors / shortening the dual code based on linear OA(910, 20, F9, 9) (dual of [20, 10, 10]-code), using
- linear OA(91, 5, F9, 1) (dual of [5, 4, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(91, 9, F9, 1) (dual of [9, 8, 2]-code), using
- Reed–Solomon code RS(8,9) [i]
- discarding factors / shortening the dual code based on linear OA(91, 9, F9, 1) (dual of [9, 8, 2]-code), 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 OOA(981, 52, F9, 2, 53) (dual of [(52, 2), 23, 54]-NRT-code) | [i] | OOA Folding | |