Information on Result #1131518
Linear OOA(2258, 1441794, F2, 6, 17) (dual of [(1441794, 6), 8650506, 18]-NRT-code), using OOA 3-folding based on linear OOA(2258, 4325382, F2, 2, 17) (dual of [(4325382, 2), 8650506, 18]-NRT-code), using
- (u, u+v)-construction [i] based on
- linear OOA(273, 131081, F2, 2, 8) (dual of [(131081, 2), 262089, 9]-NRT-code), using
- OOA 2-folding [i] based on linear OA(273, 262162, F2, 8) (dual of [262162, 262089, 9]-code), using
- discarding factors / shortening the dual code based on linear OA(273, 262163, F2, 8) (dual of [262163, 262090, 9]-code), using
- 1 times truncation [i] based on linear OA(274, 262164, F2, 9) (dual of [262164, 262090, 10]-code), using
- construction X4 applied to Ce(8) ⊂ Ce(6) [i] based on
- linear OA(273, 262144, F2, 9) (dual of [262144, 262071, 10]-code), using an extension Ce(8) of the primitive narrow-sense BCH-code C(I) with length 262143 = 218−1, defining interval I = [1,8], and designed minimum distance d ≥ |I|+1 = 9 [i]
- linear OA(255, 262144, F2, 7) (dual of [262144, 262089, 8]-code), using an extension Ce(6) of the primitive narrow-sense BCH-code C(I) with length 262143 = 218−1, defining interval I = [1,6], and designed minimum distance d ≥ |I|+1 = 7 [i]
- linear OA(219, 20, F2, 19) (dual of [20, 1, 20]-code or 20-arc in PG(18,2)), using
- dual of repetition code with length 20 [i]
- linear OA(21, 20, F2, 1) (dual of [20, 19, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(21, s, F2, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
- construction X4 applied to Ce(8) ⊂ Ce(6) [i] based on
- 1 times truncation [i] based on linear OA(274, 262164, F2, 9) (dual of [262164, 262090, 10]-code), using
- discarding factors / shortening the dual code based on linear OA(273, 262163, F2, 8) (dual of [262163, 262090, 9]-code), using
- OOA 2-folding [i] based on linear OA(273, 262162, F2, 8) (dual of [262162, 262089, 9]-code), using
- linear OOA(2185, 4194301, F2, 2, 17) (dual of [(4194301, 2), 8388417, 18]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2185, 8388602, F2, 17) (dual of [8388602, 8388417, 18]-code), using
- discarding factors / shortening the dual code based on linear OA(2185, large, F2, 17) (dual of [large, large−185, 18]-code), using
- the expurgated narrow-sense BCH-code C(I) with length 8388609 | 246−1, defining interval I = [0,8], and minimum distance d ≥ |{−8,−7,…,8}|+1 = 18 (BCH-bound) [i]
- discarding factors / shortening the dual code based on linear OA(2185, large, F2, 17) (dual of [large, large−185, 18]-code), using
- OOA 2-folding [i] based on linear OA(2185, 8388602, F2, 17) (dual of [8388602, 8388417, 18]-code), using
- linear OOA(273, 131081, F2, 2, 8) (dual of [(131081, 2), 262089, 9]-NRT-code), using
Mode: Constructive and linear.
Optimality
Show details for fixed k and m, k and s, k and t, m and s, m and t.
Other Results with Identical Parameters
None.
Depending Results
None.