Changjiang Bu

most citedE-cospectral hypergraphs and some hypergraphs determined by their spectra

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

math.CO2014

Minimum (maximum) rank of tensors and the sign nonsingular tensors

Changjiang Bu, Wenzhe Wang, Lizhu Sun +1

In this paper, we define the minimum (maximum) rank, term rank and the sign nonsingular of tensors. The sufficiency and necessity for the minimum rank of a real tensor to be $1$ is…

math.CO2014

Some spectral properties of uniform hypergraphs

Jiang Zhou, Lizhu Sun, Wenzhe Wang +1

For a $k$ -uniform hypergraph $H$ , we obtain some trace formulas for the Laplacian tensor of $H$ , which imply that $\sum_{i = 1}^{n} d_{i}^{s}$ ( $s = 1, \dots, k$ ) is determined by the Laplacia…

math.CO2014★ 1 cited

E-cospectral hypergraphs and some hypergraphs determined by their spectra

Changjiang Bu, Jiang Zhou, Yimin Wei

Two $k$ -uniform hypergraphs are said to be cospectral (E-cospectral), if their adjacency tensors have the same characteristic polynomial (E-characteristic polynomial). A $k$ -unifor…