Quanyu Tang

collaborators

2 papers

math.CO2026

Nearly permanental cospectral graphs

Weifang Lv, Quanyu Tang, Wei Wang +1

Let $G$ be a simple graph of order $n$ with adjacency matrix $A = (a_{ij})$ . The \emph{determinant} and the \emph{permanen}t of the matrix $A$ are defined as \[\mathrm{det}A= \sum_{…

math.CO2026

A Family of Simultaneously Cospectral Trees for Degree-Distance Matrices

Limeng Lin, Quanyu Tang, Kehua Wang +1

Spectral characterization of graphs for various graph matrices constitutes a central topic in spectral graph theory. Let $G$ be a graph with adjacency matrix $A (G)$ , diagonal degre…