MinT - Information on Result #1516508

Information on Result #1516508

Linear OOA(2²¹⁷, 845, F₂, 3, 39) (dual of [(845, 3), 2318, 40]-NRT-code), using embedding of OOA with Gilbertâ€“VarÅ¡amov bound based on linear OOA(2²¹⁷, 845, F₂, 2, 39) (dual of [(845, 2), 1473, 40]-NRT-code), using

discarding factors / shortening the dual code based on linear OOA(2²¹⁷, 1038, F₂, 2, 39) (dual of [(1038, 2), 1859, 40]-NRT-code), using
- 2¹ times duplication [i] based on linear OOA(2²¹⁶, 1038, F₂, 2, 39) (dual of [(1038, 2), 1860, 40]-NRT-code), using
  - OOA 2-folding [i] based on linear OA(2²¹⁶, 2076, F₂, 39) (dual of [2076, 1860, 40]-code), using
    - constructionÂ X applied to C_e(38) âŠ‚ C_e(34) [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(2¹⁸⁸, 2048, F₂, 35) (dual of [2048, 1860, 36]-code), using an extension C_e(34) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,34], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 35 [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(2²¹⁷, 422, F₂, 5, 39) (dual of [(422, 5), 1893, 40]-NRT-code)	[i]		OOA Folding
2	Linear OOA(2²¹⁷, 422, F₂, 6, 39) (dual of [(422, 6), 2315, 40]-NRT-code)	[i]		OOA Folding