Jiyong Chen

activity

20242026

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2 papers · 1 filter

math.CO2026

A construction of 2-arc-transitive non-solvable covers of complete graphs

Jiyong Chen, Cai Heng Li, Ci Xuan Wu +1

We construct connected $2$ -arc-transitive covers of complete graphs with non-abelian characteristically simple transformation groups. This solves the existence problem for non-solv…

math.GR2026

Proportion of chiral maps with automorphism group $S_{n}$ and $A_{n}$

Jiyong Chen, Yi Xiao Tang

Orientably-regular maps are highly symmetric embeddings of graphs in oriented surfaces. Among them, chiral maps are those which fail to be isomorphic to their mirror images. We pro…

A construction of 2-arc-transitive non-solvable covers of complete graphs

Proportion of chiral maps with automorphism group Sn​ and An​

Proportion of chiral maps with automorphism group $S_{n}$ and $A_{n}$