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Combinatorics of generalized Dyck and Motzkin paths
Li Gan1, Stéphane Ouvry1, Alexios P Polychronakos2
1LPTMS, CNRS, Université Paris-Saclay, 91405 Orsay Cedex, France.
This study connects generalized Dyck and Motzkin paths to particle statistics, providing formulas for counting specific path types. These findings reveal new generalized compositions of integer path lengths.
Area of Science:
- Combinatorics
- Statistical Mechanics
- Number Theory
Background:
- Generalized Dyck and Motzkin paths are combinatorial objects with applications in various fields.
- Cluster coefficients are important in understanding the behavior of interacting particles.
- Generalized exclusion statistics describe systems where particles have restrictions on occupying states.
Purpose of the Study:
- To establish a connection between the combinatorics of generalized Dyck and Motzkin paths and cluster coefficients.
- To derive explicit expressions for counting specific types of these paths.
- To identify emergent structures in the analysis of path lengths.
Main Methods:
- Relating combinatorial properties of periodic generalized Dyck and Motzkin paths.
- Analyzing cluster coefficients for particles under generalized exclusion statistics.
- Developing methods for counting paths with fixed step counts at each vertical coordinate.
Main Results:
- Explicit expressions for counting generalized Dyck and Motzkin paths with specified constraints.
- Demonstration of a direct relationship between path combinatorics and particle statistics.
- Identification of a novel class of generalized compositions of integer path lengths.
Conclusions:
- The study successfully links path combinatorics with particle cluster coefficients.
- The derived expressions offer a new tool for analyzing and counting complex paths.
- The emergence of generalized compositions highlights a deeper mathematical structure.
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