MinT - Information on Result #1054225

Information on Result #1054225

Linear OOA(2⁷⁰, 21, F₂, 4, 37) (dual of [(21, 4), 14, 38]-NRT-code), using OOA 2-folding based on linear OOA(2⁷⁰, 42, F₂, 2, 37) (dual of [(42, 2), 14, 38]-NRT-code), using

concatenation of two NRT-codes [i] based on
1. linear OOA(4²¹, 14, F₄, 2, 18) (dual of [(14, 2), 7, 19]-NRT-code), using
  - extended algebraic-geometric NRT-code AG_e(2;F,9P) [i] based on function field F/F₄ with g(F) = 3 and N(F) ≥ 14, using
    - an explicitly constructive algebraic function field [i]
2. linear OA(2¹, 3, F₂, 1) (dual of [3, 2, 2]-code), using
  - discarding factors / shortening the dual code based on linear OA(2¹, s, F₂, 1) (dual of [s, s−1, 2]-code) for arbitrarily large s, using
    - parity-check code [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.