MinT - Information on Result #1081321

Information on Result #1081321

Linear OOA(3²⁰⁹, 2097235, F₃, 4, 18) (dual of [(2097235, 4), 8388731, 19]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(3²⁷, 84, F₃, 4, 9) (dual of [(84, 4), 309, 10]-NRT-code), using
- extracting embedded OOA [i] based on digital (18, 27, 84)-net over F₃, using
  - trace code for nets [i] based on digital (0, 9, 28)-net over F₂₇, using
    - net from sequence [i] based on digital (0, 27)-sequence over F₂₇, using
      - generalized Faure sequence [i]
      - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₂₇ with g(F) = 0 and N(F) ≥ 28, using
        the rational function field F₂₇(x) [i]
      - Niederreiter sequence [i]
linear OOA(3¹⁸², 2097151, F₃, 4, 18) (dual of [(2097151, 4), 8388422, 19]-NRT-code), using
- OOA 2-folding [i] based on linear OOA(3¹⁸², 4194302, F₃, 2, 18) (dual of [(4194302, 2), 8388422, 19]-NRT-code), using
  - 1 times NRT-code embedding in larger space [i] based on linear OOA(3¹⁸⁰, 4194301, F₃, 2, 18) (dual of [(4194301, 2), 8388422, 19]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(3¹⁸⁰, 8388602, F₃, 18) (dual of [8388602, 8388422, 19]-code), using
      - discarding factors / shortening the dual code based on linear OA(3¹⁸⁰, large, F₃, 18) (dual of [large, large−180, 19]-code), using
        the primitive narrow-sense BCH-code C(I) with length 14348906Â = 3¹⁵âˆ’1, defining interval IÂ =Â [1,18], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 19 [i]

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.