Grand Motzkin Paths and {0, 1, 2}-Trees-A Simple Bijection

被引:0
|
作者
Prodinger, Helmut [1 ,2 ]
机构
[1] Department of Mathematics, University of Stellenbosch, Stellenbosch
来源
Journal of Combinatorial Mathematics and Combinatorial Computing | 2024年 / 123卷
关键词
Bijection; Motzkin paths; Unary-binary trees;
D O I
10.61091/jcmcc123-37
中图分类号
学科分类号
摘要
A well-known bijection between Motzkin paths and ordered trees with outdegree always ≤ 2, is lifted to Grand Motzkin paths (the nonnegativity is dropped) and an ordered list of an odd number of such {0, 1, 2} trees. This offers an alternative to a recent paper by Rocha and Pereira Spreafico. © 2024 The Author(s).
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页码:521 / 525
页数:4
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