2 papers
math.GR2026
Solvable Supplements to Normalizers of Cyclic 2-Subgroups
Shou Hong Qiao, Binzhou Xia
Amberg and Kazarin proved that a finite group is solvable if the normalizer of every cyclic subgroup of prime power order has a solvable supplement. We substantially relax this hyp…
math.CO2025
Which maximal subgroups are perfect codes?
Shouhong Qiao, Ning Su, Binzhou Xia +2
A perfect code in a graph is a subset of such that no two vertices in are adjacent and every vertex in is adjacent to exactly one vertex in $…