Patterns in random binary search trees
Random Structures & Algorithms
Profiles of random trees: Plane-oriented recursive trees
Random Structures & Algorithms
Phase changes in random point quadtrees
ACM Transactions on Algorithms (TALG)
Phase Changes in Subtree Varieties in Random Recursive and Binary Search Trees
SIAM Journal on Discrete Mathematics
On the subtree size profile of binary search trees
Combinatorics, Probability and Computing
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We study the number of subtrees on the fringe of random recursive trees and random binary search trees whose limit law is known to be either normal or Poisson or degenerate depending on the size of the subtree. We introduce a new approach to this problem which helps us to further clarify this phenomenon. More precisely, we derive optimal Berry–Esseen bounds and local limit theorems for the normal range and prove a Poisson approximation result as the subtree size tends to infinity.