In this article, we consider the joinsemilattice of subtrees of the tree. The minimal subtrees in the joinsemilattice center are least central subtrees. We show that for every tree any least central subtree contains every point of the center and at least one point of the centroid of the tree. © 2011 Wiley Periodicals, Inc. NETWORKS, Vol. 57(4), 328-332 2011
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.