13 citations · 14 across the 7 of their papers we have counts for
7 papers
Extremed signed graphs for triangle
Dijian Wang, Yaoping Hou, Deqiong Li
In this paper, we study the Turán problem of signed graphs version. Suppose that is a connected unbalanced signed graph of order with edges and $e^-(\dot…
Nodal domain theorem of signed hypergraphs
Lei Zhang, Yaoping Hou
In 2001, Davies, Gladwell, Leydold, and Stadler proved discrete nodal domain theorems for eigenfunctions of generalized Laplacians. In 2019, Jost and Mulas generalized the normaliz…
On signed graphs whose spectral radius does not exceed
Dijian Wang, Wenkuan Dong, Yaoping Hou +1
The Hoffman program with respect to any real or complex square matrix associated to a graph stems from Hoffman's pioneering work on the limit points for the spectral radius…
Unicyclic signed graphs with maximal energy
Dijian Wang, Yaoping Hou
Let be the eigenvalues of a signed graph of order . The energy of is defined as Let be obtained by c…
The graphs with all but two eigenvalues equal to or
Jing Li, Deqiong Li, Yaoping Hou
In this paper, all graphs whose adjacency matrix has at most two eigenvalues (multiplicities included) different from and are determined. These graphs conclude a class of…
Note on the subgraph component polynomial
Yunhua Liao, Yaoping Hou
Tittmann, Averbouch and Makowsky [P. Tittmann, I. Averbouch, J.A. Makowsky, The enumeration of vertex induced subgraphs with respect to the number of components, European Journal o…
Tutte polynomial of a small-world farey graph
Yunhua Liao, Yaoping Hou, Xiaoling Shen
In this paper, we find recursive formulas for the Tutte polynomial of a family of small-world networks: Farey graphs, which are modular and have an exponential degree hierarchy. Th…