MinT - Information on Result #1681771

Information on Result #1681771

Linear OOA(2¹⁴⁶, 690, F₂, 7, 26) (dual of [(690, 7), 4684, 27]-NRT-code), using embedding of OOA with Gilbertâ€“VarÅ¡amov bound based on linear OOA(2¹⁴⁶, 690, F₂, 2, 26) (dual of [(690, 2), 1234, 27]-NRT-code), using

discarding factors / shortening the dual code based on linear OOA(2¹⁴⁶, 1030, F₂, 2, 26) (dual of [(1030, 2), 1914, 27]-NRT-code), using
- 2¹ times duplication [i] based on linear OOA(2¹⁴⁵, 1030, F₂, 2, 26) (dual of [(1030, 2), 1915, 27]-NRT-code), using
  - OOA 2-folding [i] based on linear OA(2¹⁴⁵, 2060, F₂, 26) (dual of [2060, 1915, 27]-code), using
    - strength reduction [i] based on linear OA(2¹⁴⁵, 2060, F₂, 27) (dual of [2060, 1915, 28]-code), using
      - constructionÂ X applied to C_e(26) âŠ‚ C_e(24) [i] based on
        linear OA(2¹⁴⁴, 2048, F₂, 27) (dual of [2048, 1904, 28]-code), using an extension C_e(26) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,26], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 27 [i]
        linear OA(2¹³³, 2048, F₂, 25) (dual of [2048, 1915, 26]-code), using an extension C_e(24) of the primitive narrow-sense BCH-code C(I) with length 2047Â = 2¹¹âˆ’1, defining interval IÂ =Â [1,24], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 25 [i]
        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: 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(2¹⁴⁶, 344, F₂, 35, 26) (dual of [(344, 35), 11894, 27]-NRT-code)	[i]		OOA Folding and Stacking with Additional Row