If a graph is both **connected** *and* has no **cycles**, then it is **tree graph** [@benjamin17, p. 68]. The four tree graphs with five nodes are shown in @fig-trees. Recall from @sec-cycles in ...

This is a fairly common task. Given a tree $G$ with $N$ vertices. There are two types of queries: the first one is to paint an edge, the second one is to query the ...

Abstract: We consider an ldquon-graph of treesrdquo whose nodes are the set of trees of fixed order n, and in which two nodes are adjacent if one tree can be derived from the other through a single ...