MinT - Information on Result #1591412

Information on Result #1591412

Linear OOA(2¹³⁸, 743, F₂, 4, 24) (dual of [(743, 4), 2834, 25]-NRT-code), using embedding of OOA with Gilbertâ€“VarÅ¡amov bound based on linear OOA(2¹³⁸, 743, F₂, 2, 24) (dual of [(743, 2), 1348, 25]-NRT-code), using

discarding factors / shortening the dual code based on linear OOA(2¹³⁸, 1038, F₂, 2, 24) (dual of [(1038, 2), 1938, 25]-NRT-code), using
- OOA 2-folding [i] based on linear OA(2¹³⁸, 2076, F₂, 24) (dual of [2076, 1938, 25]-code), using
  - 1 times truncation [i] based on linear OA(2¹³⁹, 2077, F₂, 25) (dual of [2077, 1938, 26]-code), using
    - constructionÂ X applied to C([0,12]) âŠ‚ C([0,10]) [i] based on
      1. linear OA(2¹³³, 2049, F₂, 25) (dual of [2049, 1916, 26]-code), using the expurgated narrow-sense BCH-code C(I) with length 2049Â | 2²²âˆ’1, defining interval IÂ =Â [0,12], and minimum distance dÂ â‰¥ |{−12,−11,…,12}|+1Â =Â 26 (BCH-bound) [i]
      2. linear OA(2¹¹¹, 2049, F₂, 21) (dual of [2049, 1938, 22]-code), using the expurgated narrow-sense BCH-code C(I) with length 2049Â | 2²²âˆ’1, defining interval IÂ =Â [0,10], and minimum distance dÂ â‰¥ |{−10,−9,…,10}|+1Â =Â 22 (BCH-bound) [i]
      3. linear OA(2⁶, 28, F₂, 3) (dual of [28, 22, 4]-code or 28-cap in PG(5,2)), using
        discarding factors / shortening the dual code based on linear OA(2⁶, 32, F₂, 3) (dual of [32, 26, 4]-code or 32-cap in PG(5,2)), using
        Reedâ€“Muller code RM(1,5) [i]
        caps in base bÂ =Â 2 [i]

Mode: 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

The following results depend on this result:

	Result		This result only	Method
1	Linear OOA(2¹³⁸, 371, F₂, 7, 24) (dual of [(371, 7), 2459, 25]-NRT-code)	[i]		OOA Folding
2	Linear OOA(2¹³⁸, 371, F₂, 8, 24) (dual of [(371, 8), 2830, 25]-NRT-code)	[i]		OOA Folding