MinT - Information on Result #706574

Information on Result #706574

Linear OA(4¹²², 300, F₄, 38) (dual of [300, 178, 39]-code), using constructionÂ XX applied to C₁Â =Â C([69,102]), C₂Â =Â C([65,94]), C₃Â =Â C₁Â +Â C₂Â =Â C([69,94]), and C_âˆ©Â =Â C₁Â âˆ©Â C₂Â =Â C([65,102]) based on

linear OA(4⁹⁵, 255, F₄, 34) (dual of [255, 160, 35]-code), using the primitive BCH-code C(I) with length 255Â = 4⁴âˆ’1, defining interval IÂ =Â {69,70,…,102}, and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 35 [i]
linear OA(4⁸⁷, 255, F₄, 30) (dual of [255, 168, 31]-code), using the primitive BCH-code C(I) with length 255Â = 4⁴âˆ’1, defining interval IÂ =Â {65,66,…,94}, and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 31 [i]
linear OA(4¹⁰⁵, 255, F₄, 38) (dual of [255, 150, 39]-code), using the primitive BCH-code C(I) with length 255Â = 4⁴âˆ’1, defining interval IÂ =Â {65,66,…,102}, and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 39 [i]
linear OA(4⁷⁷, 255, F₄, 26) (dual of [255, 178, 27]-code), using the primitive BCH-code C(I) with length 255Â = 4⁴âˆ’1, defining interval IÂ =Â {69,70,…,94}, and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 27 [i]
linear OA(4¹³, 31, F₄, 7) (dual of [31, 18, 8]-code), using
- discarding factors / shortening the dual code based on linear OA(4¹³, 34, F₄, 7) (dual of [34, 21, 8]-code), using
  - (u,Â u+v)-construction [i] based on
    1. linear OA(4⁴, 17, F₄, 3) (dual of [17, 13, 4]-code or 17-cap in PG(3,4)), using
      - ovoid in PG(3,Â 4) [i]
    2. linear OA(4⁹, 17, F₄, 7) (dual of [17, 8, 8]-code), using
      - dual code (with bound on d by constructionÂ Y1) [i] based on
        linear OA(4⁸, 17, F₄, 6) (dual of [17, 9, 7]-code), using
        the BCH-code C(I) with length 17Â | 4⁴âˆ’1, defining interval IÂ =Â {1,4,7,…,16}, and designed minimum distance dÂ â‰¥Â |I|+1Â =Â 7 [i]
        nonexistence of linear OA(4⁷, 10, F₄, 6) (dual of [10, 3, 7]-code), because
        bound for almost-MDS-codes with dimension nÂ =Â 3 [i]
linear OA(4⁴, 14, F₄, 3) (dual of [14, 10, 4]-code or 14-cap in PG(3,4)), using
- discarding factors / shortening the dual code based on linear OA(4⁴, 17, F₄, 3) (dual of [17, 13, 4]-code or 17-cap in PG(3,4)) (see above)

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:

	Result		This result only	Method
1	Linear OOA(4¹²², 150, F₄, 2, 38) (dual of [(150, 2), 178, 39]-NRT-code)	[i]		OOA Folding