X

G

Γ

备注

${\mathbb{Z}}_2^{10}:S_{10}$

${\mathbb{Z}}_2^9:S_9$

引理3.2

至多4个图

${\mathbb{Z}}_2^8:\left(\left(A_5\times A_5\right):\left({\mathbb{Z}}_2\times {\mathbb{Z}}_4\right)\right)$

${\mathbb{Z}}_2^8:\left(A_5:S_4\right)$

引理3.3

至多2个图

$\left({\mathbb{Z}}_2^9:A_{10}\right):{\mathbb{Z}}_2$

${\mathbb{Z}}_2^8:S_9$

引理3.4

至多4个图

$A_{20}:{\mathbb{Z}}_2$

$A_{19}:{\mathbb{Z}}_2$

引理3.5

至多18个图