MinT - Best Known (24−9, 24, s)-Nets in Base 64

Best Known (24−9, 24, s)-Nets in Base 64

(24−9, 24, 4175)-Net over F₆₄ — Constructive and digital

Digital (15, 24, 4175)-net over F₆₄, using

generalized (u,Â u+v)-construction [i] based on
1. digital (0, 0, 65)-net over F₆₄, using
  - s-reduction based on digital (0, 0, s)-net over F₆₄ with arbitrarily large s, using
    - arbitrary set of 64⁰ points [i]
2. digital (0, 0, 65)-net over F₆₄ (see above)
3. digital (0, 0, 65)-net over F₆₄ (see above)
4. digital (0, 0, 65)-net over F₆₄ (see above)
5. digital (0, 0, 65)-net over F₆₄ (see above)
6. digital (0, 0, 65)-net over F₆₄ (see above)
7. digital (0, 0, 65)-net over F₆₄ (see above)
8. digital (0, 0, 65)-net over F₆₄ (see above)
9. digital (0, 0, 65)-net over F₆₄ (see above)
10. digital (0, 0, 65)-net over F₆₄ (see above)
11. digital (0, 0, 65)-net over F₆₄ (see above)
12. digital (0, 0, 65)-net over F₆₄ (see above)
13. digital (0, 0, 65)-net over F₆₄ (see above)
14. digital (0, 0, 65)-net over F₆₄ (see above)
15. digital (0, 0, 65)-net over F₆₄ (see above)
16. digital (0, 0, 65)-net over F₆₄ (see above)
17. digital (0, 0, 65)-net over F₆₄ (see above)
18. digital (0, 0, 65)-net over F₆₄ (see above)
19. digital (0, 0, 65)-net over F₆₄ (see above)
20. digital (0, 0, 65)-net over F₆₄ (see above)
21. digital (0, 0, 65)-net over F₆₄ (see above)
22. digital (0, 0, 65)-net over F₆₄ (see above)
23. digital (0, 0, 65)-net over F₆₄ (see above)
24. digital (0, 0, 65)-net over F₆₄ (see above)
25. digital (0, 0, 65)-net over F₆₄ (see above)
26. digital (0, 0, 65)-net over F₆₄ (see above)
27. digital (0, 0, 65)-net over F₆₄ (see above)
28. digital (0, 0, 65)-net over F₆₄ (see above)
29. digital (0, 0, 65)-net over F₆₄ (see above)
30. digital (0, 0, 65)-net over F₆₄ (see above)
31. digital (0, 0, 65)-net over F₆₄ (see above)
32. digital (0, 0, 65)-net over F₆₄ (see above)
33. digital (0, 0, 65)-net over F₆₄ (see above)
34. digital (0, 0, 65)-net over F₆₄ (see above)
35. digital (0, 0, 65)-net over F₆₄ (see above)
36. digital (0, 0, 65)-net over F₆₄ (see above)
37. digital (0, 0, 65)-net over F₆₄ (see above)
38. digital (0, 0, 65)-net over F₆₄ (see above)
39. digital (0, 0, 65)-net over F₆₄ (see above)
40. digital (0, 0, 65)-net over F₆₄ (see above)
41. digital (0, 0, 65)-net over F₆₄ (see above)
42. digital (0, 0, 65)-net over F₆₄ (see above)
43. digital (0, 0, 65)-net over F₆₄ (see above)
44. digital (0, 0, 65)-net over F₆₄ (see above)
45. digital (0, 0, 65)-net over F₆₄ (see above)
46. digital (0, 0, 65)-net over F₆₄ (see above)
47. digital (0, 0, 65)-net over F₆₄ (see above)
48. digital (0, 0, 65)-net over F₆₄ (see above)
49. digital (0, 0, 65)-net over F₆₄ (see above)
50. digital (0, 0, 65)-net over F₆₄ (see above)
51. digital (0, 0, 65)-net over F₆₄ (see above)
52. digital (0, 0, 65)-net over F₆₄ (see above)
53. digital (0, 0, 65)-net over F₆₄ (see above)
54. digital (0, 0, 65)-net over F₆₄ (see above)
55. digital (0, 0, 65)-net over F₆₄ (see above)
56. digital (0, 1, 65)-net over F₆₄, using
  - s-reduction based on digital (0, 1, s)-net over F₆₄ with arbitrarily large s, using
    - construction for strength kÂ =Â 1 [i]
57. digital (0, 1, 65)-net over F₆₄ (see above)
58. digital (0, 1, 65)-net over F₆₄ (see above)
59. digital (0, 1, 65)-net over F₆₄ (see above)
60. digital (0, 1, 65)-net over F₆₄ (see above)
61. digital (0, 2, 65)-net over F₆₄, using
  - kÂ =Â 2 construction [i]
62. digital (0, 3, 65)-net over F₆₄, using
  - net from sequence [i] based on digital (0, 64)-sequence over F₆₄, using
    - generalized Faure sequence [i]
    - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₆₄ with g(F) = 0 and N(F) ≥ 65, using
      - the rational function field F₆₄(x) [i]
    - Niederreiter sequence [i]
63. digital (0, 4, 65)-net over F₆₄, using
  - net from sequence [i] based on digital (0, 64)-sequence over F₆₄ (see above)
64. digital (1, 10, 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]

(24−9, 24, 15668)-Net over F₆₄ — Digital

Digital (15, 24, 15668)-net over F₆₄, using

Gilbertâ€“VarÅ¡amov bound [i]

(24−9, 24, 16385)-Net in Base 64 — Constructive

(15, 24, 16385)-net in base 64, using

base change [i] based on digital (9, 18, 16385)-net over F₂₅₆, using
- net defined by OOA [i] based on linear OOA(256¹⁸, 16385, F₂₅₆, 9, 9) (dual of [(16385, 9), 147447, 10]-NRT-code), using
  - OOA 4-folding and stacking with additional row [i] based on linear OA(256¹⁸, 65541, F₂₅₆, 9) (dual of [65541, 65523, 10]-code), using
    - discarding factors / shortening the dual code based on linear OA(256¹⁸, 65542, F₂₅₆, 9) (dual of [65542, 65524, 10]-code), using
      - constructionÂ X applied to C([0,4]) âŠ‚ C([0,3]) [i] based on
        linear OA(256¹⁷, 65537, F₂₅₆, 9) (dual of [65537, 65520, 10]-code), using the expurgated narrow-sense BCH-code C(I) with length 65537Â | 256⁴âˆ’1, defining interval IÂ =Â [0,4], and minimum distance dÂ â‰¥ |{−4,−3,…,4}|+1Â =Â 10 (BCH-bound) [i]
        linear OA(256¹³, 65537, F₂₅₆, 7) (dual of [65537, 65524, 8]-code), using the expurgated narrow-sense BCH-code C(I) with length 65537Â | 256⁴âˆ’1, defining interval IÂ =Â [0,3], and minimum distance dÂ â‰¥ |{−3,−2,…,3}|+1Â =Â 8 (BCH-bound) [i]
        linear OA(256¹, 5, F₂₅₆, 1) (dual of [5, 4, 2]-code), using
        discarding factors / shortening the dual code based on linear OA(256¹, s, F₂₅₆, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
        parity-check code [i]

(24−9, 24, 31019)-Net in Base 64

(15, 24, 31019)-net in base 64, using

base change [i] based on digital (9, 18, 31019)-net over F₂₅₆, using
- embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(256¹⁸, 31019, F₂₅₆, 2, 9) (dual of [(31019, 2), 62020, 10]-NRT-code), using
  - discarding factors / shortening the dual code based on linear OOA(256¹⁸, 32771, F₂₅₆, 2, 9) (dual of [(32771, 2), 65524, 10]-NRT-code), using
    - OOA 2-folding [i] based on linear OA(256¹⁸, 65542, F₂₅₆, 9) (dual of [65542, 65524, 10]-code), using
      - constructionÂ X applied to C([0,4]) âŠ‚ C([0,3]) [i] based on
        linear OA(256¹⁷, 65537, F₂₅₆, 9) (dual of [65537, 65520, 10]-code), using the expurgated narrow-sense BCH-code C(I) with length 65537Â | 256⁴âˆ’1, defining interval IÂ =Â [0,4], and minimum distance dÂ â‰¥ |{−4,−3,…,4}|+1Â =Â 10 (BCH-bound) [i]
        linear OA(256¹³, 65537, F₂₅₆, 7) (dual of [65537, 65524, 8]-code), using the expurgated narrow-sense BCH-code C(I) with length 65537Â | 256⁴âˆ’1, defining interval IÂ =Â [0,3], and minimum distance dÂ â‰¥ |{−3,−2,…,3}|+1Â =Â 8 (BCH-bound) [i]
        linear OA(256¹, 5, F₂₅₆, 1) (dual of [5, 4, 2]-code), using
        discarding factors / shortening the dual code based on linear OA(256¹, s, F₂₅₆, 1) (dual of [s, s−1, 2]-code) with arbitrarily large s, using
        parity-check code [i]

(24−9, 24, large)-Net in Base 64 — Upper bound on s

There is no (15, 24, large)-net in base 64, because

7 times m-reduction [i] would yield (15, 17, large)-net in base 64, but
- mutually orthogonal hypercube bound [i]