On the rotation distance of binary trees
Information Processing Letters
On the upper bound on the rotation distance of binary trees
Information Processing Letters
Short encodings of evolving structures
SIAM Journal on Discrete Mathematics
The art of computer programming, volume 1 (3rd ed.): fundamental algorithms
The art of computer programming, volume 1 (3rd ed.): fundamental algorithms
The art of computer programming, volume 3: (2nd ed.) sorting and searching
The art of computer programming, volume 3: (2nd ed.) sorting and searching
Concrete Mathematics: A Foundation for Computer Science
Concrete Mathematics: A Foundation for Computer Science
Quantum automata, braid group and link polynomials
Quantum Information & Computation
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A binary coupling tree on n + 1 leaves is a binary tree in which the leaves have distinct labels. The rotation graph Gn is defined as the graph of all binary coupling trees on n + 1 leaves, with edges connecting trees that can be transformed into each other by a single rotation. In this paper, we study distance properties of the graph Gn. Exact results for the diameter of Gn for values up to n = 10 are obtained. For larger values of n, we prove upper and lower bounds for the diameter, which yield the result that the diameter of Gn grows like nlg(n).