MinT - Best Known (77−4, 77, s)-Nets in Base 81

Best Known (77−4, 77, s)-Nets in Base 81

(77−4, 77, large)-Net over F₈₁ — Constructive and digital

Digital (73, 77, large)-net over F₈₁, using

t-expansion [i] based on digital (72, 77, large)-net over F₈₁, using
- 5 times m-reduction [i] based on digital (72, 82, large)-net over F₈₁, using
  - (u,Â u+v)-construction [i] based on
    1. digital (12, 17, 4194301)-net over F₈₁, using
      - net defined by OOA [i] based on linear OOA(81¹⁷, 4194301, F₈₁, 5, 5) (dual of [(4194301, 5), 20971488, 6]-NRT-code), using
        appending kth column [i] based on linear OOA(81¹⁷, 4194301, F₈₁, 4, 5) (dual of [(4194301, 4), 16777187, 6]-NRT-code), using
        OOA 2-folding and stacking with additional row [i] based on linear OA(81¹⁷, large, F₈₁, 5) (dual of [large, large−17, 6]-code), using
        the expurgated narrow-sense BCH-code C(I) with length 21523361Â | 81⁸âˆ’1, defining interval IÂ =Â [0,2], and minimum distance dÂ â‰¥ |{−2,−1,0,1,2}|+1Â =Â 6 (BCH-bound) [i]
    2. digital (55, 65, 4194383)-net over F₈₁, using
      - (u,Â u+v)-construction [i] based on
        digital (0, 5, 82)-net over F₈₁, using
        net from sequence [i] based on digital (0, 81)-sequence over F₈₁, using
        generalized Faure sequence [i]
        Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₈₁ with g(F) = 0 and N(F) ≥ 82, using
        the rational function field F₈₁(x) [i]
        Niederreiter sequence [i]
        digital (50, 60, 4194301)-net over F₈₁, using
        net defined by OOA [i] based on linear OOA(81⁶⁰, 4194301, F₈₁, 15, 10) (dual of [(4194301, 15), 62914455, 11]-NRT-code), using
        OOA 2-folding and stacking with additional row [i] based on linear OOA(81⁶⁰, large, F₈₁, 3, 10), using
        generalized (u,Â u+v)-construction [i] based on
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(81⁰, s, F₈₁, 3, 0) with arbitrarily large s, using
        OOA with only one run / dual of NRT-code without redundancy [i]
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81⁰, 177148, F₈₁, 3, 0) (dual of [(177148, 3), 531444, 1]-NRT-code) (see above)
        linear OOA(81¹, 177148, F₈₁, 3, 1) (dual of [(177148, 3), 531443, 2]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(81¹, s, F₈₁, 3, 1) with arbitrarily large s, using
        appending 2 arbitrary columns [i] based on linear OA(81¹, s, F₈₁, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
        parity-check code [i]
        linear OOA(81¹, 177148, F₈₁, 3, 1) (dual of [(177148, 3), 531443, 2]-NRT-code) (see above)
        linear OOA(81¹, 177148, F₈₁, 3, 1) (dual of [(177148, 3), 531443, 2]-NRT-code) (see above)
        linear OOA(81¹, 177148, F₈₁, 3, 1) (dual of [(177148, 3), 531443, 2]-NRT-code) (see above)
        linear OOA(81¹, 177148, F₈₁, 3, 1) (dual of [(177148, 3), 531443, 2]-NRT-code) (see above)
        linear OOA(81⁴, 177148, F₈₁, 3, 2) (dual of [(177148, 3), 531440, 3]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(81⁴, 538084, F₈₁, 3, 2) (dual of [(538084, 3), 1614248, 3]-NRT-code), using
        appending 1 arbitrary column [i] based on linear OOA(81⁴, 538084, F₈₁, 2, 2) (dual of [(538084, 2), 1076164, 3]-NRT-code), using
        appending kth column [i] based on linear OA(81⁴, 538084, F₈₁, 2) (dual of [538084, 538080, 3]-code), using
        Hamming code H(4,81) [i]
        linear OOA(81⁴, 177148, F₈₁, 3, 2) (dual of [(177148, 3), 531440, 3]-NRT-code) (see above)
        linear OOA(81⁶, 177148, F₈₁, 3, 3) (dual of [(177148, 3), 531438, 4]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(81⁶, 538247, F₈₁, 3, 3) (dual of [(538247, 3), 1614735, 4]-NRT-code), using
        OOA stacking with additional row [i] based on linear OA(81⁶, 538248, F₈₁, 3) (dual of [538248, 538242, 4]-code or 538248-cap in PG(5,81)), using
        large caps in PG(5,Â b) [i]
        linear OOA(81¹³, 177148, F₈₁, 3, 5) (dual of [(177148, 3), 531431, 6]-NRT-code), using
        discarding factors / shortening the dual code based on linear OOA(81¹³, 265721, F₈₁, 3, 5) (dual of [(265721, 3), 797150, 6]-NRT-code), using
        OOA 2-folding and stacking with additional row [i] based on linear OA(81¹³, 531443, F₈₁, 5) (dual of [531443, 531430, 6]-code), using
        discarding factors / shortening the dual code based on linear OA(81¹³, 531444, F₈₁, 5) (dual of [531444, 531431, 6]-code), using
        constructionÂ X applied to C_e(4) âŠ‚ C_e(3) [i] based on
        linear OA(81¹³, 531441, F₈₁, 5) (dual of [531441, 531428, 6]-code), using an extension C_e(4) of the primitive narrow-sense BCH-code C(I) with length 531440Â = 81³âˆ’1, defining interval IÂ =Â [1,4], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 5 [i]
        linear OA(81¹⁰, 531441, F₈₁, 4) (dual of [531441, 531431, 5]-code), using an extension C_e(3) of the primitive narrow-sense BCH-code C(I) with length 531440Â = 81³âˆ’1, defining interval IÂ =Â [1,3], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 4 [i]
        linear OA(81⁰, 3, F₈₁, 0) (dual of [3, 3, 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]
        linear OOA(81²⁸, 177148, F₈₁, 3, 10) (dual of [(177148, 3), 531416, 11]-NRT-code), using
        OOA 3-folding [i] based on linear OA(81²⁸, 531444, F₈₁, 10) (dual of [531444, 531416, 11]-code), using
        constructionÂ X applied to C_e(9) âŠ‚ C_e(8) [i] based on
        linear OA(81²⁸, 531441, F₈₁, 10) (dual of [531441, 531413, 11]-code), using an extension C_e(9) of the primitive narrow-sense BCH-code C(I) with length 531440Â = 81³âˆ’1, defining interval IÂ =Â [1,9], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 10 [i]
        linear OA(81²⁵, 531441, F₈₁, 9) (dual of [531441, 531416, 10]-code), using an extension C_e(8) of the primitive narrow-sense BCH-code C(I) with length 531440Â = 81³âˆ’1, defining interval IÂ =Â [1,8], and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 9 [i]
        linear OA(81⁰, 3, F₈₁, 0) (dual of [3, 3, 1]-code) (see above)

(77−4, 77, large)-Net in Base 81 — Upper bound on s

There is no (73, 77, large)-net in base 81, because

2 times m-reduction [i] would yield (73, 75, large)-net in base 81, but
- mutually orthogonal hypercube bound [i]

Best Known (77−4, 77, s)-Nets in Base 81

(77−4, 77, large)-Net over F81 — Constructive and digital

(77−4, 77, large)-Net in Base 81 — Upper bound on s

(77−4, 77, large)-Net over F₈₁ — Constructive and digital