Information on Result #1385099
Linear OOA(6447, 3123, F64, 2, 19) (dual of [(3123, 2), 6199, 20]-NRT-code), using OOA 2-folding based on linear OA(6447, 6246, F64, 19) (dual of [6246, 6199, 20]-code), using
- 1987 step Varšamov–Edel lengthening with (ri) = (1, 50 times 0, 1, 666 times 0, 1, 1268 times 0) [i] based on linear OA(6444, 4256, F64, 19) (dual of [4256, 4212, 20]-code), using
- 151 step Varšamov–Edel lengthening with (ri) = (4, 0, 0, 0, 1, 11 times 0, 1, 34 times 0, 1, 99 times 0) [i] based on linear OA(6437, 4098, F64, 19) (dual of [4098, 4061, 20]-code), using
- construction X applied to Ce(18) ⊂ Ce(17) [i] based on
- linear OA(6437, 4096, F64, 19) (dual of [4096, 4059, 20]-code), using an extension Ce(18) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- linear OA(6435, 4096, F64, 18) (dual of [4096, 4061, 19]-code), using an extension Ce(17) of the primitive narrow-sense BCH-code C(I) with length 4095 = 642−1, defining interval I = [1,17], and designed minimum distance d ≥ |I|+1 = 18 [i]
- linear OA(640, 2, F64, 0) (dual of [2, 2, 1]-code), using
- discarding factors / shortening the dual code based on linear OA(640, s, F64, 0) (dual of [s, s, 1]-code) for arbitrarily large s, using
- construction X applied to Ce(18) ⊂ Ce(17) [i] based on
- 151 step Varšamov–Edel lengthening with (ri) = (4, 0, 0, 0, 1, 11 times 0, 1, 34 times 0, 1, 99 times 0) [i] based on linear OA(6437, 4098, F64, 19) (dual of [4098, 4061, 20]-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.