Topological multiplicity of the maximum eigenvalue of graph 1-Laplacian. - Dong Zhang 004 (Discret. Math., 2018)

Spectral theory of Laplace operators on oriented hypergraphs. - Raffaella Mulas; Dong Zhang 004 (Discret. Math., 2021)

Petals and books: The largest Laplacian spectral gap from 1. - Jürgen Jost; Raffaella Mulas; Dong Zhang 004 (J. Graph Theory, 2023)

Discrete-to-Continuous Extensions: Lovász Extension and Morse Theory. - Jürgen Jost; Dong Zhang 004 (Discret. Comput. Geom., 2024)