9 citations
- National Center for Biotechnology InformationUS3 papers
- National Institutes of HealthUS3 papers
- Nankai UniversityCN2 papers
- Arizona State UniversityUS1 paper
- Boston CollegeUS1 paper
- Georgia Institute of TechnologyUS1 paper
- Oak Ridge Institute for Science and Education1 paper
- University of Maryland, College ParkUS1 paper
- University of MichiganUS1 paper
- University of OuluFI1 paper
- UNSW SydneyAU1 paper
Showing 2005 · math.COShow all
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math.CO2005
Matrix Identities on Weighted Partial Motzkin Paths
William Y. C. Chen, Nelson Y. Li, Louis W. Shapiro +1
We give a combinatorial interpretation of a matrix identity on Catalan numbers and the sequence which has been derived by Shapiro, Woan and Getu by using Ri…
math.CO2005
Parity Reversing Involutions on Plane Trees and 2-Motzkin Paths
William Y. C. Chen, Louis W. Shapiro, Laura L. M. Yang
The problem of counting plane trees with edges and an even or an odd number of leaves was studied by Eu, Liu and Yeh, in connection with an identity on coloring nets due to Sta…