MinT - Information on Result #2765976

Information on Result #2765976

Linear OOA(2²²⁵, 524, F₂, 4, 38) (dual of [(524, 4), 1871, 39]-NRT-code), using strength reduction based on linear OOA(2²²⁵, 524, F₂, 4, 39) (dual of [(524, 4), 1871, 40]-NRT-code), using

OOA 4-folding [i] based on linear OA(2²²⁵, 2096, F₂, 39) (dual of [2096, 1871, 40]-code), using
- 3 times code embedding in larger space [i] based on linear OA(2²²², 2093, F₂, 39) (dual of [2093, 1871, 40]-code), using
  - constructionÂ X applied to C_e(38) âŠ‚ C_e(32) [i] based on
    1. linear OA(2²¹⁰, 2048, F₂, 39) (dual of [2048, 1838, 40]-code), using an extension C_e(38) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,38], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 39 [i]
    2. 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]
    3. linear OA(2¹², 45, F₂, 5) (dual of [45, 33, 6]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹², 48, F₂, 5) (dual of [48, 36, 6]-code), using
        adding a parity check bit [i] based on linear OA(2¹¹, 47, F₂, 4) (dual of [47, 36, 5]-code), using
        extracting embedded orthogonal array [i] based on digital (7, 11, 47)-net over F₂, using
        linear code embedding found in a computer search [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		This result only	Method
1	Linear OOA(2²²⁶, 524, F₂, 4, 38) (dual of [(524, 4), 1870, 39]-NRT-code)	[i]		OOA Duplication
2	Linear OOA(2²²⁷, 524, F₂, 4, 38) (dual of [(524, 4), 1869, 39]-NRT-code)	[i]		OOA Duplication