MinT - Information on Result #1079826

Information on Result #1079826

Linear OOA(2²⁵⁸, 4456442, F₂, 4, 13) (dual of [(4456442, 4), 17825510, 14]-NRT-code), using (u,Â u+v)-construction based on

linear OOA(2⁶⁷, 4194301, F₂, 4, 6) (dual of [(4194301, 4), 16777137, 7]-NRT-code), using
- OOA stacking with additional row [i] based on linear OOA(2⁶⁷, 4194302, F₂, 3, 6) (dual of [(4194302, 3), 12582839, 7]-NRT-code), using
  - 1 step truncation [i] based on linear OOA(2⁶⁸, 4194303, F₂, 3, 7) (dual of [(4194303, 3), 12582841, 8]-NRT-code), using
    - OOAs constructed from BCH codes [i]
linear OOA(2¹⁹¹, 2228221, F₂, 4, 13) (dual of [(2228221, 4), 8912693, 14]-NRT-code), using
- (u,Â u+v)-construction [i] based on
  1. linear OOA(2⁵², 131071, F₂, 4, 6) (dual of [(131071, 4), 524232, 7]-NRT-code), using
    - extracting embedded OOA [i] based on digital (46, 52, 131071)-net over F₂, using
      - 1 times m-reduction [i] based on digital (46, 53, 131071)-net over F₂, using
        nets constructed from net-embeddable BCH codes [i]
  2. linear OOA(2¹³⁹, 2097150, F₂, 4, 13) (dual of [(2097150, 4), 8388461, 14]-NRT-code), using
    - OOA 4-folding [i] based on linear OA(2¹³⁹, 8388600, F₂, 13) (dual of [8388600, 8388461, 14]-code), using
      - discarding factors / shortening the dual code based on linear OA(2¹³⁹, large, F₂, 13) (dual of [large, large−139, 14]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 8388609Â | 2⁴⁶âˆ’1, defining interval IÂ =Â [0,6], and minimum distance dÂ â‰¥ |{−6,−5,…,6}|+1Â =Â 14 (BCH-bound) [i]

Mode: Constructive and linear.

None.

The following results depend on this result:

	Result		This result only	Method
1	Linear OOA(2²⁵⁸, 4456442, F₂, 4, 12) (dual of [(4456442, 4), 17825510, 13]-NRT-code)	[i]		Strength Reduction for OOAs
2	Linear OOA(2²⁵⁹, 4456442, F₂, 4, 13) (dual of [(4456442, 4), 17825509, 14]-NRT-code)	[i]		OOA Duplication