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20212025
most citedAdjacency eigenvalues of graphs without short odd cycles

3 citations · 4 across the 5 of their papers we have counts for

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6 papers

math.CO2025

A survey of edge-spectral-Turán type problems in spectral graph theory: Results, conjectures and open problems

Yuantian Yu, Huihui Zhang, Minjie Zhang

The edge-spectral-Turán type problem is also called the Brualdi-Hoffman-Turán type problem, which is a central topic in spectral graph theory, seeking to determine the maximum spec…

math.CO2025

Spectral Turán-type problem in non--partite graphs: Forbidden generalized book graph

Yuantian Yu, Shuchao Li

Given a graph , a graph is said to be -free if it does not contain as a subgraph. A graph is color-critical when it has an edge whose removal leads to a reduction in its…

math.CO2025

The exact Turán number of generalized book graph in non--partite graphs

Yuantian Yu, Shuchao Li

Given a graph we say that a graph is \textit{-free} if it does not contain as a subgraph. The Turán number $\ex(n,H)$ of is the maximum number of edges in an -ve…

math.CO2024

The Hoffman program for mixed graphs

Yuantian Yu, Edwin R. van Dam

We consider Hoffman's program about the limit points of the spectral radius of the Hermitian adjacency matrix of mixed graphs. In particular, we determine all mixed graphs without…

math.CO2021★ 3 cited

Adjacency eigenvalues of graphs without short odd cycles

Shuchao Li, Wanting Sun, Yuantian Yu

It is well known that spectral Turán type problem is one of the most classical {problems} in graph theory. In this paper, we consider the spectral Turán type problem. Let be a…

math.CO2021★ 1 cited

Hermitian adjacency matrix of the second kind for mixed graphs

Shuchao Li, Yuantian Yu

This contribution gives an extensive study on spectra of mixed graphs via its Hermitian adjacency matrix of the second kind { (-matrix for short)} introduced by Mohar \cite{0001…