A bijection on Dyck paths and its consequences
โ Scribed by Emeric Deutsch
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 175 KB
- Volume
- 179
- Category
- Article
- ISSN
- 0012-365X
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โฆ Synopsis
A bijection is introduced in the set of all Dyck paths of semilength n from which it follows that (i) the parameters 'height of the first peak' and 'number of returns' have the same distribution and (ii) the parameter 'number of high peaks' has the Narayana distribution.
๐ SIMILAR VOLUMES
A bijection is introduced in the set of all ordered trees having n edges from which one derives that, for each positive integer q, the parameters "number of nodes of degree q" and "number of odd-level nodes of degree q-1" are equidistributed.
This paper deals with a study of the class of lattice paths, made of north, east, south, and west unit steps, which being at -1 0 and end at 0 0 , avoiding the non-negative x-axis. is bijectively proved to be enumerated by odd index Catalan numbers according to the number of steps.
In this paper, we introduce a subclass of the Dyck paths (Delest and Viennot, 1984) called nondecreasing Dyck paths which are enumerated by the Fibonacci numbers having odd indexes. We then use two different methods to enumerate these paths according to various parameters. By the first one, used in