Best Known (91−67, 91, s)-Nets in Base 4
(91−67, 91, 34)-Net over F4 — Constructive and digital
Digital (24, 91, 34)-net over F4, using
- t-expansion [i] based on digital (21, 91, 34)-net over F4, using
- net from sequence [i] based on digital (21, 33)-sequence over F4, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 21 and N(F) ≥ 34, using
- T5 from the second tower of function fields by GarcÃa and Stichtenoth over F4 [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 21 and N(F) ≥ 34, using
- net from sequence [i] based on digital (21, 33)-sequence over F4, using
(91−67, 91, 35)-Net in Base 4 — Constructive
(24, 91, 35)-net in base 4, using
- net from sequence [i] based on (24, 34)-sequence in base 4, using
- base expansion [i] based on digital (48, 34)-sequence over F2, using
- Niederreiter–Xing sequence construction III based on the algebraic function field F/F2 with g(F) = 41, N(F) = 32, 1 place with degree 2, and 2 places with degree 4 [i] based on function field F/F2 with g(F) = 41 and N(F) ≥ 32, using an explicitly constructive algebraic function field [i]
- base expansion [i] based on digital (48, 34)-sequence over F2, using
(91−67, 91, 49)-Net over F4 — Digital
Digital (24, 91, 49)-net over F4, using
- net from sequence [i] based on digital (24, 48)-sequence over F4, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 24 and N(F) ≥ 49, using
(91−67, 91, 104)-Net in Base 4 — Upper bound on s
There is no (24, 91, 105)-net in base 4, because
- extracting embedded orthogonal array [i] would yield OA(491, 105, S4, 67), but
- the linear programming bound shows that M ≥ 524 188211 718670 937226 399103 153225 807075 875498 456302 594102 919168 / 64 824485 > 491 [i]