Best Known (206−18, 206, s)-Nets in Base 3
(206−18, 206, 932127)-Net over F3 — Constructive and digital
Digital (188, 206, 932127)-net over F3, using
- (u, u+v)-construction [i] based on
- digital (17, 26, 60)-net over F3, using
- trace code for nets [i] based on digital (4, 13, 30)-net over F9, using
- net from sequence [i] based on digital (4, 29)-sequence over F9, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F9 with g(F) = 4 and N(F) ≥ 30, using
- net from sequence [i] based on digital (4, 29)-sequence over F9, using
- trace code for nets [i] based on digital (4, 13, 30)-net over F9, using
- digital (162, 180, 932067)-net over F3, using
- net defined by OOA [i] based on linear OOA(3180, 932067, F3, 18, 18) (dual of [(932067, 18), 16777026, 19]-NRT-code), using
- OA 9-folding and stacking [i] based on linear OA(3180, large, F3, 18) (dual of [large, large−180, 19]-code), using
- the primitive narrow-sense BCH-code C(I) with length 14348906 = 315−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- OA 9-folding and stacking [i] based on linear OA(3180, large, F3, 18) (dual of [large, large−180, 19]-code), using
- net defined by OOA [i] based on linear OOA(3180, 932067, F3, 18, 18) (dual of [(932067, 18), 16777026, 19]-NRT-code), using
- digital (17, 26, 60)-net over F3, using
(206−18, 206, 4411876)-Net over F3 — Digital
Digital (188, 206, 4411876)-net over F3, using
- embedding of OOA with Gilbert–Varšamov bound [i] based on linear OA(3206, 4411876, F3, 18) (dual of [4411876, 4411670, 19]-code), using
- discarding factors / shortening the dual code based on linear OA(3206, large, F3, 18) (dual of [large, large−206, 19]-code), using
- 26 times code embedding in larger space [i] based on linear OA(3180, large, F3, 18) (dual of [large, large−180, 19]-code), using
- the primitive narrow-sense BCH-code C(I) with length 14348906 = 315−1, defining interval I = [1,18], and designed minimum distance d ≥ |I|+1 = 19 [i]
- 26 times code embedding in larger space [i] based on linear OA(3180, large, F3, 18) (dual of [large, large−180, 19]-code), using
- discarding factors / shortening the dual code based on linear OA(3206, large, F3, 18) (dual of [large, large−206, 19]-code), using
(206−18, 206, large)-Net in Base 3 — Upper bound on s
There is no (188, 206, large)-net in base 3, because
- 16 times m-reduction [i] would yield (188, 190, large)-net in base 3, but