Information on Result #978029
Linear OOA(756, 20, F7, 3, 47) (dual of [(20, 3), 4, 48]-NRT-code), using OOA 3-folding based on linear OA(756, 60, F7, 47) (dual of [60, 4, 48]-code), using
- juxtaposition [i] based on
- linear OA(76, 10, F7, 5) (dual of [10, 4, 6]-code), using
- construction X applied to C([0,2]) ⊂ C([1,2]) [i] based on
- linear OA(75, 8, F7, 5) (dual of [8, 3, 6]-code or 8-arc in PG(4,7)), using the expurgated narrow-sense BCH-code C(I) with length 8 | 72−1, defining interval I = [0,2], and minimum distance d ≥ |{−2,−1,0,1,2}|+1 = 6 (BCH-bound) [i]
- linear OA(74, 8, F7, 3) (dual of [8, 4, 4]-code or 8-cap in PG(3,7)), using the narrow-sense BCH-code C(I) with length 8 | 72−1, defining interval I = [1,2], and minimum distance d ≥ |{1,2}| + |{−3,0}| = 4 (simple Roos-bound) [i]
- linear OA(71, 2, F7, 1) (dual of [2, 1, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(71, s, F7, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
- construction X applied to C([0,2]) ⊂ C([1,2]) [i] based on
- linear OA(746, 50, F7, 41) (dual of [50, 4, 42]-code), using
- linear OA(76, 10, F7, 5) (dual of [10, 4, 6]-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.
Other Results with Identical Parameters
None.
Depending Results
The following results depend on this result:
| Result | This result only | Method | ||
|---|---|---|---|---|
| 1 | Linear OOA(756, 20, F7, 3, 46) (dual of [(20, 3), 4, 47]-NRT-code) | [i] | Strength Reduction for OOAs | |