The least signless Laplacian eigenvalue of the complements of bicyclic graphs

Xiaoyun Feng, Guoping Wang

Suppose that $G$ is a connected simple graph with the vertex set $V(G)=\{v_1,v_2,\cdots ,v_n\}$. Then the adjacency matrix of $G$ is $A(G)=(a_{ij}{)}_{n\times n}$, where $a_{ij}=1$ i…