Information on Result #1822231
OA(12845, 407, S128, 27), using (u, u+v)-construction based on
- linear OA(12814, 150, F128, 13) (dual of [150, 136, 14]-code), using
- extended algebraic-geometric code AGe(F,136P) [i] based on function field F/F128 with g(F) = 1 and N(F) ≥ 150, using
- OA(12831, 257, S128, 27), using
- discarding parts of the base [i] based on linear OA(25627, 257, F256, 27) (dual of [257, 230, 28]-code or 257-arc in PG(26,256)), using
- extended Reed–Solomon code RSe(230,256) [i]
- the expurgated narrow-sense BCH-code C(I) with length 257 | 2562−1, defining interval I = [0,13], and minimum distance d ≥ |{−13,−12,…,13}|+1 = 28 (BCH-bound) [i]
- algebraic-geometric code AG(F, Q+113P) 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+75P) 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, Q+45P) with degQ = 4 and 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(25627, 257, F256, 27) (dual of [257, 230, 28]-code or 257-arc in PG(26,256)), using
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.