Information on Result #1371187
Linear OOA(579, 373, F5, 2, 23) (dual of [(373, 2), 667, 24]-NRT-code), using OOA 2-folding based on linear OA(579, 746, F5, 23) (dual of [746, 667, 24]-code), using
- discarding factors / shortening the dual code based on linear OA(579, 747, F5, 23) (dual of [747, 668, 24]-code), using
- 109 step Varšamov–Edel lengthening with (ri) = (2, 0, 0, 1, 9 times 0, 1, 19 times 0, 1, 31 times 0, 1, 43 times 0) [i] based on linear OA(573, 632, F5, 23) (dual of [632, 559, 24]-code), using
- construction XX applied to C1 = C([623,20]), C2 = C([0,21]), C3 = C1 + C2 = C([0,20]), and C∩ = C1 ∩ C2 = C([623,21]) [i] based on
- linear OA(569, 624, F5, 22) (dual of [624, 555, 23]-code), using the primitive BCH-code C(I) with length 624 = 54−1, defining interval I = {−1,0,…,20}, and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(569, 624, F5, 22) (dual of [624, 555, 23]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 54−1, defining interval I = [0,21], and designed minimum distance d ≥ |I|+1 = 23 [i]
- linear OA(573, 624, F5, 23) (dual of [624, 551, 24]-code), using the primitive BCH-code C(I) with length 624 = 54−1, defining interval I = {−1,0,…,21}, and designed minimum distance d ≥ |I|+1 = 24 [i]
- linear OA(565, 624, F5, 21) (dual of [624, 559, 22]-code), using the primitive expurgated narrow-sense BCH-code C(I) with length 624 = 54−1, defining interval I = [0,20], and designed minimum distance d ≥ |I|+1 = 22 [i]
- linear OA(50, 4, F5, 0) (dual of [4, 4, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(50, s, F5, 0) (dual of [s, s, 1]-code) for arbitrarily large s, using
- linear OA(50, 4, F5, 0) (dual of [4, 4, 1]-code) (see above)
- construction XX applied to C1 = C([623,20]), C2 = C([0,21]), C3 = C1 + C2 = C([0,20]), and C∩ = C1 ∩ C2 = C([623,21]) [i] based on
- 109 step Varšamov–Edel lengthening with (ri) = (2, 0, 0, 1, 9 times 0, 1, 19 times 0, 1, 31 times 0, 1, 43 times 0) [i] based on linear OA(573, 632, F5, 23) (dual of [632, 559, 24]-code), using
Mode: 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
None.