MinT - Information on Result #900137

Information on Result #900137

Linear OOA(25⁸³, 442, F₂₅, 2, 30) (dual of [(442, 2), 801, 31]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(25²⁵, 126, F₂₅, 2, 15) (dual of [(126, 2), 227, 16]-NRT-code), using
- extended algebraic-geometric NRT-code AG_e(2;F,236P) [i] based on function field F/F₂₅ with g(F) = 10 and N(F) ≥ 126, using
  - the Hermitian function field over F₂₅ [i]
linear OOA(25⁵⁸, 316, F₂₅, 2, 30) (dual of [(316, 2), 574, 31]-NRT-code), using
- OOA 2-folding [i] based on linear OA(25⁵⁸, 632, F₂₅, 30) (dual of [632, 574, 31]-code), using
  - discarding factors / shortening the dual code based on linear OA(25⁵⁸, 633, F₂₅, 30) (dual of [633, 575, 31]-code), using
    - constructionÂ X applied to C_e(29) âŠ‚ C_e(26) [i] based on
      1. linear OA(25⁵⁶, 625, F₂₅, 30) (dual of [625, 569, 31]-code), using an extension C_e(29) of the primitive narrow-sense BCH-code C(I) with length 624Â = 25²âˆ’1, defining interval IÂ =Â [1,29], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 30 [i]
      2. linear OA(25⁵⁰, 625, F₂₅, 27) (dual of [625, 575, 28]-code), using an extension C_e(26) of the primitive narrow-sense BCH-code C(I) with length 624Â = 25²âˆ’1, defining interval IÂ =Â [1,26], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 27 [i]
      3. linear OA(25², 8, F₂₅, 2) (dual of [8, 6, 3]-code or 8-arc in PG(1,25)), using
        discarding factors / shortening the dual code based on linear OA(25², 25, F₂₅, 2) (dual of [25, 23, 3]-code or 25-arc in PG(1,25)), using
        Reedâ€“Solomon code RS(23,25) [i]

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

None.