MinT - Information on Result #947467

Information on Result #947467

Linear OOA(2¹⁷⁸, 686, F₂, 3, 33) (dual of [(686, 3), 1880, 34]-NRT-code), using OOA 3-folding based on linear OA(2¹⁷⁸, 2058, F₂, 33) (dual of [2058, 1880, 34]-code), using

discarding factors / shortening the dual code based on linear OA(2¹⁷⁸, 2060, F₂, 33) (dual of [2060, 1882, 34]-code), using
- constructionÂ X applied to C_e(32) âŠ‚ C_e(30) [i] based on
  1. linear OA(2¹⁷⁷, 2048, F₂, 33) (dual of [2048, 1871, 34]-code), using an extension C_e(32) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,32], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 33 [i]
  2. linear OA(2¹⁶⁶, 2048, F₂, 31) (dual of [2048, 1882, 32]-code), using an extension C_e(30) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,30], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 31 [i]
  3. linear OA(2¹, 12, F₂, 1) (dual of [12, 11, 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

The following results depend on this result:

	Result		Method
1	Linear OOA(2¹⁷⁸, 686, F₂, 3, 32) (dual of [(686, 3), 1880, 33]-NRT-code)	[i]	Strength Reduction for OOAs
2	Linear OOA(2¹⁷⁸, 686, F₂, 4, 33) (dual of [(686, 4), 2566, 34]-NRT-code)	[i]	Embedding of OOA with Gilbertâ€“VarÅ¡amov Bound
3	Linear OOA(2¹⁷⁸, 686, F₂, 5, 33) (dual of [(686, 5), 3252, 34]-NRT-code)	[i]
4	Linear OOA(2¹⁷⁸, 686, F₂, 6, 33) (dual of [(686, 6), 3938, 34]-NRT-code)	[i]
5	Linear OOA(2¹⁷⁸, 686, F₂, 7, 33) (dual of [(686, 7), 4624, 34]-NRT-code)	[i]
6	Linear OOA(2¹⁷⁸, 686, F₂, 8, 33) (dual of [(686, 8), 5310, 34]-NRT-code)	[i]
7	Digital (145, 178, 686)-net over F₂	[i]