Information on Result #671757
Linear OA(25635, 520, F256, 22) (dual of [520, 485, 23]-code), using (u, u+v)-construction based on
- linear OA(25612, 260, F256, 11) (dual of [260, 248, 12]-code), using
- construction X applied to AG(F, Q+121P) ⊂ AG(F, Q+122P) [i] based on
- linear OA(25611, 257, F256, 11) (dual of [257, 246, 12]-code or 257-arc in PG(10,256)), using algebraic-geometric code AG(F, Q+121P) 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]
- linear OA(2569, 257, F256, 9) (dual of [257, 248, 10]-code or 257-arc in PG(8,256)), using algebraic-geometric code AG(F, Q+122P) with degQ = 3 and degPÂ =Â 2 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257 (see above)
- linear OA(2561, 3, F256, 1) (dual of [3, 2, 2]-code), using
- discarding factors / shortening the dual code based on linear OA(2561, s, F256, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
- construction X applied to AG(F, Q+121P) ⊂ AG(F, Q+122P) [i] based on
- linear OA(25623, 260, F256, 22) (dual of [260, 237, 23]-code), using
- construction X applied to AG(F,117P) ⊂ AG(F,118P) [i] based on
- linear OA(25622, 257, F256, 22) (dual of [257, 235, 23]-code or 257-arc in PG(21,256)), using algebraic-geometric code AG(F,117P) with degPÂ =Â 2 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257 (see above)
- linear OA(25620, 257, F256, 20) (dual of [257, 237, 21]-code or 257-arc in PG(19,256)), using algebraic-geometric code AG(F,118P) with degPÂ =Â 2 [i] based on function field F/F256 with g(F) = 0 and N(F) ≥ 257 (see above)
- linear OA(2561, 3, F256, 1) (dual of [3, 2, 2]-code) (see above)
- construction X applied to AG(F,117P) ⊂ AG(F,118P) [i] based on
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 | OA(12840, 520, S128, 22) | [i] | Discarding Parts of the Base for OAs | |