DM
2008
13 years 7 months ago
2008
A 2-binary tree is a binary rooted tree whose root is colored black and the other vertices are either black or white. We present several bijections concerning different types of 2...
GD
2008
Springer
13 years 8 months ago
2008
Springer
We consider straight-line drawings of trees on a hexagonal grid. The hexagonal grid is an extension of the common grid with inner nodes of degree six. We restrict the number of dir...