Information on Result #1822145
OA(12877, 547, S128, 43), using (u, u+v)-construction based on
- OA(12824, 257, S128, 21), using
- discarding parts of the base [i] based on linear OA(25621, 257, F256, 21) (dual of [257, 236, 22]-code or 257-arc in PG(20,256)), using
- extended Reed–Solomon code RSe(236,256) [i]
- the expurgated narrow-sense BCH-code C(I) with length 257 | 2562−1, defining interval I = [0,10], and minimum distance d ≥ |{−10,−9,…,10}|+1 = 22 (BCH-bound) [i]
- algebraic-geometric code AG(F, Q+116P) with degQ = 3 and degPÂ =Â 2 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257, using the rational function field F256(x) [i]
- algebraic-geometric code AG(F, Q+77P) with degQ = 4 and degPÂ =Â 3 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257 (see above)
- algebraic-geometric code AG(F,47P) with degPÂ =Â 5 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257 (see above)
- discarding parts of the base [i] based on linear OA(25621, 257, F256, 21) (dual of [257, 236, 22]-code or 257-arc in PG(20,256)), using
- linear OA(12853, 290, F128, 43) (dual of [290, 237, 44]-code), using
- construction X applied to AG(F,243P) ⊂ AG(F,245P) [i] based on
- linear OA(12852, 287, F128, 43) (dual of [287, 235, 44]-code), using algebraic-geometric code AG(F,243P) [i] based on function field F/F128 with g(F) = 9 and N(F) ≥ 288, using
- linear OA(12850, 287, F128, 41) (dual of [287, 237, 42]-code), using algebraic-geometric code AG(F,245P) [i] based on function field F/F128 with g(F) = 9 and N(F) ≥ 288 (see above)
- linear OA(1281, 3, F128, 1) (dual of [3, 2, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(1281, s, F128, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
- construction X applied to AG(F,243P) ⊂ AG(F,245P) [i] based on
Mode: Constructive.
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.