@Article{CMR-33-149, author = {Chen , Zhongjin and Zhao , Shuo}, title = {Two Bijections on Weighted Motzkin Paths}, journal = {Communications in Mathematical Research }, year = {2019}, volume = {33}, number = {2}, pages = {149--159}, abstract = {

In this paper, we provide a bijection between the set of underdiagonal lattice paths of length $n$ and the set of (2,2)-Motzkin paths of length $n$. Besides, we generalize the bijection of Shapiro and Wang (Shapiro L W, Wang C J. A bijection between 3-Motzkin paths and Schröder paths with no peak at odd height. J. Integer Seq., 2009, 12: Article 09.3.2.) to a bijection between $k$-Motzkin paths and ($k$−2)-Schröder paths with no horizontal step at even height. It is interesting that the second bijection is a generalization of the well-known bijection between Dyck paths and 2-Motzkin paths. 

}, issn = {2707-8523}, doi = {https://doi.org/10.13447/j.1674-5647.2017.02.07}, url = {http://global-sci.org/intro/article_detail/cmr/13395.html} }