Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4655787 | Journal of Combinatorial Theory, Series A | 2011 | 14 Pages |
Abstract
For a labeled tree on the vertex set {1,2,…,n}, the local direction of each edge (ij) is from i to j if i
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics