4 papers
Flows of 3-edge-colorable cubic signed graphs
Liangchen Li, Chong Li, Rong Luo +2
Bouchet conjectured in 1983 that every flow-admissible signed graph admits a nowhere-zero 6-flow which is equivalent to the restriction to cubic signed graphs. In this paper, we pr…
A note on algebraic connectivity of 2-connected graphs
Guanglong Yu, by Shuguang Guo, Lin Sun +2
Among all simple 2-connected graphs, and among all -graphs, the graphs with the minimum algebraic connectivity are completely determined, respectively.
Least -eigenvalues of nonbipartite 2-connected graphs
Guanglong Yu, by Lin Sun, Chao Yan +2
Among all simple nonbipartite 2-connected graphs and among all nonbipartite -graphs, the minimum least -eigenvalues are completely determined, respectively.
On the spectral radii of the unicyclic hypergraphs with fixed matching number
Guanglong Yu, Chao Yan, Yarong Wu +1
We determine the unique hypergraphs with maximum spectral radius among all connected -uniform () unicyclic hypergraphs with matching number at least , and among all…