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arxiv: 0812.1121 · v1 · pith:FUV7NGIAnew · submitted 2008-12-05 · 🧮 math.CO

A proof of the rooted tree alternative conjecture

classification 🧮 math.CO
keywords conjecturetreesrootedtreealternativeanaloguebonatoclasses
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Bonato and Tardif conjectured that the number of isomorphism classes of trees mutually embeddable with a given tree T is either 1 or infinite. We prove the analogue of their conjecture for rooted trees. We also discuss the original conjecture for locally finite trees and state some new conjectures.

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