Graph Classes with Locally Irregular Chromatic Index at most 4. - Hui Lei 002; Xiaopan Lian; Yongtang Shi; Ran Zhao (J. Optim. Theory Appl., 2022)

Saturation numbers for tPk with k less than 6. - Shujuan Cao; Hui Lei 002; Xiaopan Lian; Shunyu Yao 005; Junxue Zhang 002 (Discret. Appl. Math., 2023)

Weak-odd chromatic index of special digraph classes. - Ruijuan Gu; Hui Lei 002; Xiaopan Lian; Zhenyu Taoqiu (Discret. Appl. Math., 2023)

On critical graphs for the chromatic edge-stability number. - Hui Lei 002; Xiaopan Lian; Xianhao Meng; Yongtang Shi; Yiqiao Wang 002 (Discret. Math., 2023)

Some mader-perfect graph classes. - Rongling Lang; Hui Lei 002; Siyan Li; Xiaopan Lian; Susu Wang (Appl. Math. Comput., 2023)

A characterization of 4-χS-vertex-critical graphs for packing sequences with s1=1 and s2≥3. - Sandi Klavzar; Hui Lei 002; Xiaopan Lian; Yongtang Shi (Discret. Appl. Math., 2023)

The square of every subcubic planar graph of girth at least 6 is 7-choosable. - Seog-Jin Kim; Xiaopan Lian (Discret. Math., 2024)

Some digraph classes that meet the directed path partition conjecture. - Jiawen Bo; Zhipeng Gao; Xiaopan Lian; Jianing Liu (Discret. Appl. Math., 2025)

List Dynamic 4-Coloring of Planar Graphs. - Seog-Jin Kim; Sang June Lee; Xiaopan Lian; Xuding Zhu (Graphs Comb., 2025)

Tight Upper Bound on the Clique Size in the Square of 2-Degenerate Graphs. - Seog-Jin Kim; Xiaopan Lian (J. Graph Theory, 2025)