collaborators

5 papers

math.CO2026

The cyclic diagnosability of Cayley graphs generated by transposition triangle-free unicyclic graphs under the PMC and MM* models

Jialu Ding, Caixia Li, Pingshan Li +1

Diagnosability is a critical parameter for evaluating the reliability and self-diagnostic capacity of multiprocessor systems. As an advanced extension of traditional diagnosability…

math.CO2026

Classification of two-distance-transitive Cayley graphs of the semi-dihedral groups

Wei Jin, Cai Xia Li, Ping Shan Li

The class of 2-distance-transitive graphs naturally generalizes distance-transitive graphs and plays a central role in algebraic graph theory. Classifying such graphs for a prescri…

math.CO2026

A classification of locally-quasiprimitive circulant digraphs

Wei Jin, Yu Xiang Jin, Cai Xia Li +1

Circulant digraphs are Cayley digraphs over finite cyclic groups and constitute a fundamental class of objects in algebraic graph theory. Extending the classification of locally-pr…

math.CO2025

A note on the second-largest number of dissociation sets in connected graphs

Pingshan Li, Ke Yang, Wei Jin

A subset of vertices is called a dissociation set if it induces a subgraph with vertex degree at most one. Recently, Yuan et al. established the upper bound of the maximum number o…

math.CO2025

A classification of two-distance-transitive Cayley graphs over the generalized quaternion groups

Wei Jin, Pingshan Li, Li Tan

A non-complete graph is \emph{-distance-transitive} if, for and for any two vertex pairs and with the same distance in the graph, there exist…