Displaying similar documents to “On computing the distinguishing numbers of trees and forests.”

Distances between rooted trees

Bohdan Zelinka (1991)

Mathematica Bohemica

Similarity:

Two types of a distance between isomorphism classes of graphs are adapted for rooted trees.

Minimum vertex ranking spanning tree problem for chordal and proper interval graphs

Dariusz Dereniowski (2009)

Discussiones Mathematicae Graph Theory

Similarity:

A vertex k-ranking of a simple graph is a coloring of its vertices with k colors in such a way that each path connecting two vertices of the same color contains a vertex with a bigger color. Consider the minimum vertex ranking spanning tree (MVRST) problem where the goal is to find a spanning tree of a given graph G which has a vertex ranking using the minimal number of colors over vertex rankings of all spanning trees of G. K. Miyata et al. proved in [NP-hardness proof and an approximation...