MinT - Best Known (251−13, 251, s)-Nets in Base 2

Best Known (251−13, 251, s)-Nets in Base 2

(251−13, 251, 2861732)-Net over F₂ — Constructive and digital

Digital (238, 251, 2861732)-net over F₂, using

2² times duplication [i] based on digital (236, 249, 2861732)-net over F₂, using
- (u,Â u+v)-construction [i] based on
  1. digital (58, 64, 2097150)-net over F₂, using
    - 1 times m-reduction [i] based on digital (58, 65, 2097150)-net over F₂, using
      - net defined by OOA [i] based on linear OOA(2⁶⁵, 2097150, F₂, 7, 7) (dual of [(2097150, 7), 14679985, 8]-NRT-code), using
        OOA stacking with additional row [i] based on linear OOA(2⁶⁵, 2097151, F₂, 3, 7) (dual of [(2097151, 3), 6291388, 8]-NRT-code), using
        OOAs constructed from BCH codes [i]
  2. digital (172, 185, 1430866)-net over F₂, using
    - (u,Â u+v)-construction [i] based on
      1. digital (40, 46, 32766)-net over F₂, using
        1 times m-reduction [i] based on digital (40, 47, 32766)-net over F₂, using
        net defined by OOA [i] based on linear OOA(2⁴⁷, 32766, F₂, 7, 7) (dual of [(32766, 7), 229315, 8]-NRT-code), using
        OOA stacking with additional row [i] based on linear OOA(2⁴⁷, 32767, F₂, 3, 7) (dual of [(32767, 3), 98254, 8]-NRT-code), using
        OOAs constructed from BCH codes [i]
      2. digital (126, 139, 1398100)-net over F₂, using
        net defined by OOA [i] based on linear OOA(2¹³⁹, 1398100, F₂, 13, 13) (dual of [(1398100, 13), 18175161, 14]-NRT-code), using
        OOA 6-folding and stacking with additional row [i] based on linear OA(2¹³⁹, 8388601, F₂, 13) (dual of [8388601, 8388462, 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]

(251−13, 251, large)-Net over F₂ — Digital

Digital (238, 251, large)-net over F₂, using

2¹ times duplication [i] based on digital (237, 250, large)-net over F₂, using
- t-expansion [i] based on digital (235, 250, large)-net over F₂, using
  - embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(2²⁵⁰, large, F₂, 2, 15), using
    - 10 times NRT-code embedding in larger space [i] based on linear OOA(2²³⁰, 8388602, F₂, 2, 15) (dual of [(8388602, 2), 16776974, 16]-NRT-code), using
      - (u,Â u+v)-construction [i] based on
        linear OOA(2⁶⁸, 4194303, F₂, 2, 7) (dual of [(4194303, 2), 8388538, 8]-NRT-code), using
        OOAs constructed from BCH codes [i]
        linear OOA(2¹⁶², 4194301, F₂, 2, 15) (dual of [(4194301, 2), 8388440, 16]-NRT-code), using
        OOA 2-folding [i] based on linear OA(2¹⁶², 8388602, F₂, 15) (dual of [8388602, 8388440, 16]-code), using
        discarding factors / shortening the dual code based on linear OA(2¹⁶², large, F₂, 15) (dual of [large, large−162, 16]-code), using
        the primitive expurgated narrow-sense BCH-code C(I) with length 8388607Â = 2²³âˆ’1, defining interval IÂ =Â [0,14], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 16 [i]

(251−13, 251, large)-Net in Base 2 — Upper bound on s

There is no (238, 251, large)-net in base 2, because

11 times m-reduction [i] would yield (238, 240, large)-net in base 2, but
- mutually orthogonal hypercube bound [i]

Best Known (251−13, 251, s)-Nets in Base 2

(251−13, 251, 2861732)-Net over F2 — Constructive and digital

(251−13, 251, large)-Net over F2 — Digital

(251−13, 251, large)-Net in Base 2 — Upper bound on s

(251−13, 251, 2861732)-Net over F₂ — Constructive and digital

(251−13, 251, large)-Net over F₂ — Digital