MinT - Best Known (177−113, 177, s)-Nets in Base 3

Best Known (177−113, 177, s)-Nets in Base 3

Digital (64, 177, 48)-net over F₃, using

Digital (64, 177, 64)-net over F₃, using

t-expansion [i] based on digital (49, 177, 64)-net over F₃, using
- net from sequence [i] based on digital (49, 63)-sequence over F₃, using
  - Niederreiterâ€“Xing sequence constructionÂ II/III [i] based on function field F/F₃ with g(F) = 49 and N(F) ≥ 64, using
    - a curve from the manYPoints database [i]

There is no digital (64, 177, 273)-net over F₃, because

2 times m-reduction [i] would yield digital (64, 175, 273)-net over F₃, but
- extracting embedded orthogonal array [i] would yield linear OA(3¹⁷⁵, 273, F₃, 111) (dual of [273, 98, 112]-code), but
  - residual code [i] would yield OA(3⁶⁴, 161, S₃, 37), but
    - the linear programming bound shows that MÂ â‰¥ 7124 056298 171553 060145 512070 101885 508128 763816 468197 882803 873109 587840 749958 136725 704882 860854 621348 509725 614915 801985 233741 270237 015572 723799 162880 / 1849 132532 054904 028903 059267 432977 569153 174957 623065 810891 308528 181949 658595 763280 264454 791509 457429 141646 539096 009289 > 3⁶⁴ [i]

There is no (64, 177, 287)-net in base 3, because

4 times m-reduction [i] would yield (64, 173, 287)-net in base 3, but
- extracting embedded orthogonal array [i] would yield OA(3¹⁷³, 287, S₃, 109), but
  - 13 times code embedding in larger space [i] would yield OA(3¹⁸⁶, 300, S₃, 109), but
    - the linear programming bound shows that MÂ â‰¥ 744 646766 850603 526568 601268 797422 932026 535817 992617 489413 629925 481692 835741 945421 210090 969950 381274 252816 504020 353660 158683 457200 925516 493661 440389 831805 338854 508258 811020 990136 433923 762970 235494 388055 889637 880458 633459 997426 817105 857222 614437 226587 / 10512 885684 310613 723066 595609 767913 116130 406095 478720 857818 594175 294259 025889 504412 156455 324830 169263 105843 888569 812652 562285 873819 443701 107860 316189 843301 339995 > 3¹⁸⁶ [i]