On the rotation distance between binary trees

Details On the rotation distance between binary trees On the rotation distance between binary trees

2009-01-16

arxiv.org/abs/0901.2557v1

Mathematics

Combinatorics

Scientific paper

We develop combinatorial methods for computing the rotation distance between
binary trees, i.e., equivalently, the flip distance between triangulations of a
polygon. As an application, we prove that, for each n, there exist size n trees
at distance 2n - O(sqrt(n)).

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