举报文档介绍
1.H<G G = ∪ g2GgHg 1 NG(H)={g∈G|gHg 1=H} GNG(H)={g1NG(H),g2NG(H),···,gkNG(H)} Casei k=1 G=NG(H), g∈G,gHg 1=H NCG ∪ g2G gHg 1=H<G G = ∪ g2G gHg 1 Caseiik≥2.Leta,b∈......













1.H<G G = ∪ g2GgHg 1 NG(H)={g∈G|gHg 1=H} GNG(H)={g1NG(H),g2NG(H),···,gkNG(H)} Casei k=1 G=NG(H), g∈G,gHg 1=H NCG ∪ g2G gHg 1=H<G G = ∪ g2G gHg 1 Caseiik≥2.Leta,b∈......