MinT - Information on Result #574904

Information on Result #574904

There is no linear OOA(4²³⁰, 205, F₄, 3, 181) (dual of [(205, 3), 385, 182]-NRT-code), because 1 times depth reduction would yield linear OOA(4²³⁰, 205, F₄, 2, 181) (dual of [(205, 2), 180, 182]-NRT-code), but

33 step m-reduction [i] would yield linear OA(4¹⁹⁷, 205, F₄, 148) (dual of [205, 8, 149]-code), but
- constructionÂ Y1 [i] would yield
  1. linear OA(4¹⁹⁶, 201, F₄, 148) (dual of [201, 5, 149]-code), but
    - residual code [i] would yield linear OA(4⁴⁸, 52, F₄, 37) (dual of [52, 4, 38]-code), but
      - 1 times truncation [i] would yield linear OA(4⁴⁷, 51, F₄, 36) (dual of [51, 4, 37]-code), but
        a result by Landjev, Maruta, and Hill [i]
  2. OA(4⁸, 205, S₄, 4), but
    - discarding factors would yield OA(4⁸, 121, S₄, 4), but
      - the Rao or (dual) Hamming bound shows that MÂ â‰¥ 65704 > 4⁸ [i]

Mode: Bound (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.