Equitable coloring of planar graphs with maximum degree at least eight. - Alexandr V. Kostochka; Duo Lin; Zimu Xiang (Discret. Math., 2024)

Sharp lower bounds for the number of maximum matchings in bipartite multigraphs. - Alexandr V. Kostochka; Douglas B. West; Zimu Xiang (J. Graph Theory, 2024)

Tiling Edge-Ordered Graphs with Monotone Paths and Other Structures. - Igor Araujo; Simón Piga; Andrew Treglown; Zimu Xiang (SIAM J. Discret. Math., 2024)

Equitable List Coloring of Planar Graphs With Given Maximum Degree. - Hal A. Kierstead; Alexandr V. Kostochka; Zimu Xiang (J. Graph Theory, 2025)