Showing 2025 · math.GRShow all
2 papers · 2 filters
math.GR2025
On permutation characters of finite group
Jiakuan Lu, hangyang Meng
Let be a finite group and \( M \) be a maximal subgroup of \( G \). We call every irreducible constituent \( χ\) of \( (1_M)^G \) a \( \mathcal{P} \)-character of \( G \) with…
math.GR2025
Finite groups with few subgroups not in the Chermak-Delgado lattice
Jiakuan Lu, Xi Huang, Qinwei Lian +1
For a finite group G, we denote by v(G) the number of conjugacy classes of subgroups of G not in CD(G). In this paper, we determine the finite groups G such that v(G)=1,2,3.