English

Enumerating Trees

Number Theory 2012-01-10 v1 Combinatorics

Abstract

In this note we discuss trees similar to the Calkin-Wilf tree, a binary tree that enumerates all positive rational numbers in a simple way. The original construction of Calkin and Wilf is reformulated in a more algebraic language, and an elementary application of methods from analytic number theory gives restrictions on possible analogues.

Keywords

Cite

@article{arxiv.1201.1851,
  title  = {Enumerating Trees},
  author = {Robert A. Kucharczyk},
  journal= {arXiv preprint arXiv:1201.1851},
  year   = {2012}
}

Comments

15 pages, 1 figure

R2 v1 2026-06-21T20:02:13.764Z