Information on Result #1018020

Linear OOA(6466, 87464, F64, 3, 19) (dual of [(87464, 3), 262326, 20]-NRT-code), using (u, u+v)-construction based on
  1. linear OOA(6410, 80, F64, 3, 9) (dual of [(80, 3), 230, 10]-NRT-code), using
  2. linear OOA(6456, 87384, F64, 3, 19) (dual of [(87384, 3), 262096, 20]-NRT-code), using
    • OOA 3-folding [i] based on linear OA(6456, 262152, F64, 19) (dual of [262152, 262096, 20]-code), using
      • construction X applied to C([0,9]) ⊂ C([0,8]) [i] based on
        1. linear OA(6455, 262145, F64, 19) (dual of [262145, 262090, 20]-code), using the expurgated narrow-sense BCH-code C(I) with length 262145 | 646−1, defining interval I = [0,9], and minimum distance d ≥ |{−9,−8,…,9}|+1 = 20 (BCH-bound) [i]
        2. linear OA(6449, 262145, F64, 17) (dual of [262145, 262096, 18]-code), using the expurgated narrow-sense BCH-code C(I) with length 262145 | 646−1, defining interval I = [0,8], and minimum distance d ≥ |{−8,−7,…,8}|+1 = 18 (BCH-bound) [i]
        3. linear OA(641, 7, F64, 1) (dual of [7, 6, 2]-code), using

Mode: Constructive and linear.

Optimality

Show details for fixed k and m, n and k, k and s, k and t, n and m, m and s, m and t, n and s, n and t.

Other Results with Identical Parameters

None.

Depending Results

The following results depend on this result:

ResultThis
result
only
Method
1Linear OOA(6466, 29154, F64, 21, 19) (dual of [(29154, 21), 612168, 20]-NRT-code) [i]OOA Folding and Stacking with Additional Row