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math.CO2022
On subgroup perfect codes in Cayley sum graphs
Jun-Yang Zhang
A perfect code in a graph is an independent set of vertices of such that every vertex outside of is adjacent to a unique vertex in , and a total perfect code …
math.CO2022
Skew-Morphisms of Elementary Abelian p-Groups
Shaofei Du, Wenjuan Luo, Hao Yu +1
A skew-morphism of a finite group is a permutation on fixing the identity element, and for which there exists an integer function on such that $σ(xy)=σ(x)σ^{π(x…