Zero forcing number and propagation time discrepancy of some graphs

In this paper, we study zero forcing number and propagation time of corona product G\odot K_۱ and star-like trees. We give a sharp bound for minimum propagation time of corona product G\odot K_۱. We prove zero forcing number of G\odot K_۱ and G are equal if and only if minimum propagation time of G is ۱. Also we obtain propagation time discrepancy of star-like trees.

کلیدواژه ها:

zero forcing number ، Propagation time discrepancy ، Corona product ، Muximum nullity