Zero forcing number and propagation time discrepancy of some graphs

نویسندگان

1 Department of Mathematics, Faculty of Science, Imam Khomeini International University, P.O.Box 34148 - 96818, Qazvin, Iran

2 Department of Mathematics, Faculty of Science, Imam Khomeini International University, P.O.Box 34148 - 96818, Qazvin, Iran

doi
10.22108/toc.2025.142214.2195
چکیده

In this paper, we study zero forcing number and propagation time of corona product $G\odot K_1$ and star-like trees. We give a sharp bound for minimum propagation time of corona product $G\odot K_1.$ We prove zero forcing number of $G\odot K_1$ and $G$ are equal if and only if minimum propagation time of $G$ is $1$. Also we obtain propagation time discrepancy of star-like trees.