MinT - Best Known (76, 76+29, s)-Nets in Base 8

Best Known (76, 76+29, s)-Nets in Base 8

(76, 76+29, 514)-Net over F₈ — Constructive and digital

Digital (76, 105, 514)-net over F₈, using

1 times m-reduction [i] based on digital (76, 106, 514)-net over F₈, using
- (u,Â u+v)-construction [i] based on
  1. digital (17, 32, 160)-net over F₈, using
    - trace code for nets [i] based on digital (1, 16, 80)-net over F₆₄, using
      - net from sequence [i] based on digital (1, 79)-sequence over F₆₄, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 1 and N(F) ≥ 80, using
        a function field by SÃ©mirat [i]
  2. digital (44, 74, 354)-net over F₈, using
    - trace code for nets [i] based on digital (7, 37, 177)-net over F₆₄, using
      - net from sequence [i] based on digital (7, 176)-sequence over F₆₄, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 7 and N(F) ≥ 177, using
        a function field by GarcÃa and Quoos [i]

(76, 76+29, 590)-Net in Base 8 — Constructive

(76, 105, 590)-net in base 8, using

(u,Â u+v)-construction [i] based on
1. digital (1, 15, 14)-net over F₈, using
  - net from sequence [i] based on digital (1, 13)-sequence over F₈, using
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈ with g(F) = 1 and N(F) ≥ 14, using
      - F₂ from the tower of function fields over F₈ by van der Geer and van der Vlugt [i]
2. (61, 90, 576)-net in base 8, using
  - trace code for nets [i] based on (16, 45, 288)-net in base 64, using
    - 4 times m-reduction [i] based on (16, 49, 288)-net in base 64, using
      - base change [i] based on digital (9, 42, 288)-net over F₁₂₈, using
        net from sequence [i] based on digital (9, 287)-sequence over F₁₂₈, using
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₁₂₈ with g(F) = 9 and N(F) ≥ 288, using
        a function field by SÃ©mirat [i]

(76, 76+29, 4201)-Net over F₈ — Digital

Digital (76, 105, 4201)-net over F₈, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OA(8¹⁰⁵, 4201, F₈, 29) (dual of [4201, 4096, 30]-code), using
- 97 step VarÅ¡amovâ€“Edel lengthening with (r_i)Â = (2, 5 times 0, 1, 23 times 0, 1, 66 times 0) [i] based on linear OA(8¹⁰¹, 4100, F₈, 29) (dual of [4100, 3999, 30]-code), using
  - constructionÂ X applied to C_e(28) âŠ‚ C_e(27) [i] based on
    1. linear OA(8¹⁰¹, 4096, F₈, 29) (dual of [4096, 3995, 30]-code), using an extension C_e(28) of the primitive narrow-sense BCH-code C(I) with length 4095Â = 8⁴âˆ’1, defining interval IÂ =Â [1,28], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 29 [i]
    2. linear OA(8⁹⁷, 4096, F₈, 28) (dual of [4096, 3999, 29]-code), using an extension C_e(27) of the primitive narrow-sense BCH-code C(I) with length 4095Â = 8⁴âˆ’1, defining interval IÂ =Â [1,27], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 28 [i]
    3. linear OA(8⁰, 4, F₈, 0) (dual of [4, 4, 1]-code), using
      - discarding factors / shortening the dual code based on linear OA(8⁰, s, F₈, 0) (dual of [s, s, 1]-code) with arbitrarily large s, using
        OA with only one run / dual of code without redundancy [i]

(76, 76+29, 4415982)-Net in Base 8 — Upper bound on s

There is no (76, 105, 4415983)-net in base 8, because

1 times m-reduction [i] would yield (76, 104, 4415983)-net in base 8, but
- the generalized Rao bound for nets shows that 8^mÂ â‰¥ 8343 714035 425215 000169 909323 225933 100098 492325 842926 066451 189218 368389 026890 794616 654756 597549 > 8¹⁰⁴ [i]