MinT - Best Known (80−9, 80, s)-Nets in Base 9

Best Known (80−9, 80, s)-Nets in Base 9

(80−9, 80, 4200863)-Net over F₉ — Constructive and digital

Digital (71, 80, 4200863)-net over F₉, using

(u,Â u+v)-construction [i] based on
1. digital (10, 14, 6563)-net over F₉, using
  - net defined by OOA [i] based on linear OOA(9¹⁴, 6563, F₉, 4, 4) (dual of [(6563, 4), 26238, 5]-NRT-code), using
    - appending kth column [i] based on linear OOA(9¹⁴, 6563, F₉, 3, 4) (dual of [(6563, 3), 19675, 5]-NRT-code), using
      - OA 2-folding and stacking [i] based on linear OA(9¹⁴, 13126, F₉, 4) (dual of [13126, 13112, 5]-code), using
        trace code [i] based on linear OA(81⁷, 6563, F₈₁, 4) (dual of [6563, 6556, 5]-code), using
        constructionÂ X applied to C_e(3) âŠ‚ C_e(2) [i] based on
        linear OA(81⁷, 6561, F₈₁, 4) (dual of [6561, 6554, 5]-code), using an extension C_e(3) of the primitive narrow-sense BCH-code C(I) with length 6560Â = 81²âˆ’1, defining interval IÂ =Â [1,3], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 4 [i]
        linear OA(81⁵, 6561, F₈₁, 3) (dual of [6561, 6556, 4]-code or 6561-cap in PG(4,81)), using an extension C_e(2) of the primitive narrow-sense BCH-code C(I) with length 6560Â = 81²âˆ’1, defining interval IÂ =Â [1,2], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 3 [i]
        linear OA(81⁰, 2, F₈₁, 0) (dual of [2, 2, 1]-code), using
        discarding factors / shortening the dual code based on linear OA(81⁰, s, F₈₁, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
        OA with only one run / dual of code without redundancy [i]
2. digital (57, 66, 4194300)-net over F₉, using
  - net defined by OOA [i] based on linear OOA(9⁶⁶, 4194300, F₉, 10, 9) (dual of [(4194300, 10), 41942934, 10]-NRT-code), using
    - OOA 2-folding and stacking with additional row [i] based on linear OOA(9⁶⁶, 8388601, F₉, 2, 9) (dual of [(8388601, 2), 16777136, 10]-NRT-code), using
      - discarding factors / shortening the dual code based on linear OOA(9⁶⁶, 8388602, F₉, 2, 9) (dual of [(8388602, 2), 16777138, 10]-NRT-code), using
        trace code [i] based on linear OOA(81³³, 4194301, F₈₁, 2, 9) (dual of [(4194301, 2), 8388569, 10]-NRT-code), using
        OOA 2-folding [i] based on linear OA(81³³, 8388602, F₈₁, 9) (dual of [8388602, 8388569, 10]-code), using
        discarding factors / shortening the dual code based on linear OA(81³³, large, F₈₁, 9) (dual of [large, large−33, 10]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 21523361Â | 81⁸âˆ’1, defining interval IÂ =Â [0,4], and minimum distance dÂ â‰¥ |{−4,−3,…,4}|+1Â =Â 10 (BCH-bound) [i]

(80−9, 80, large)-Net over F₉ — Digital

Digital (71, 80, large)-net over F₉, using

t-expansion [i] based on digital (69, 80, large)-net over F₉, using
- 1 times m-reduction [i] based on digital (69, 81, large)-net over F₉, using
  - embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OA(9⁸¹, large, F₉, 12) (dual of [large, large−81, 13]-code), using
    - the expurgated narrow-sense BCH-code C(I) with length 21523360Â | 9⁸âˆ’1, defining interval IÂ =Â [0,11], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 13 [i]

(80−9, 80, large)-Net in Base 9 — Upper bound on s

There is no (71, 80, large)-net in base 9, because

7 times m-reduction [i] would yield (71, 73, large)-net in base 9, but
- mutually orthogonal hypercube bound [i]

Best Known (80−9, 80, s)-Nets in Base 9

(80−9, 80, 4200863)-Net over F9 — Constructive and digital

(80−9, 80, large)-Net over F9 — Digital

(80−9, 80, large)-Net in Base 9 — Upper bound on s

(80−9, 80, 4200863)-Net over F₉ — Constructive and digital

(80−9, 80, large)-Net over F₉ — Digital