MinT - Information on Result #574669

Information on Result #574669

There is no linear OOA(4²²², 181, F₄, 3, 179) (dual of [(181, 3), 321, 180]-NRT-code), because 1 times depth reduction would yield linear OOA(4²²², 181, F₄, 2, 179) (dual of [(181, 2), 140, 180]-NRT-code), but

47 step m-reduction [i] would yield linear OA(4¹⁷⁵, 181, F₄, 132) (dual of [181, 6, 133]-code), but
- constructionÂ Y1 [i] would yield
  1. linear OA(4¹⁷⁴, 178, F₄, 132) (dual of [178, 4, 133]-code), but
    - Griesmer bound [i]
  2. linear OA(4⁶, 181, F₄, 3) (dual of [181, 175, 4]-code or 181-cap in PG(5,4)), but
    - discarding factors / shortening the dual code would yield linear OA(4⁶, 160, F₄, 3) (dual of [160, 154, 4]-code or 160-cap in PG(5,4)), but
      - 1 times Hill recurrence [i] would yield linear OA(4⁵, 42, F₄, 3) (dual of [42, 37, 4]-code or 42-cap in PG(4,4)), but
        41 is the largest size of a cap in PG(4,Â 4) [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.