Results 21 to 30 of about 426,250 (213)

Stammering tableaux [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
The PASEP (Partially Asymmetric Simple Exclusion Process) is a probabilistic model of moving particles, which is of great interest in combinatorics, since it appeared that its partition function counts some tableaux.
Matthieu Josuat-Vergès
doaj   +1 more source

Patterns in Shi Tableaux and Dyck Paths [PDF]

open access: yesOrder, 2021
to apper in ...
Myrto Kallipoliti   +2 more
openaire   +2 more sources

On Generalized Dyck Paths [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2011
We generalize the elegant bijective proof of the Chung Feller theorem from a paper of Young-Ming Chen [The Chung-Feller theorem revisited, Disc. Math. 308 (2008), 1328–1329].
openaire   +2 more sources

Growing and Destroying Catalan-Stanley Trees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
Stanley lists the class of Dyck paths where all returns to the axis are of odd length as one of the many objects enumerated by (shifted) Catalan numbers.
Benjamin Hackl, Helmut Prodinger
doaj   +1 more source

Permutations and Pairs of Dyck Paths [PDF]

open access: yesISRN Combinatorics, 2013
We define a map v between the symmetric group Sn and the set of pairs of Dyck paths of semilength n. We show that the map v is injective when restricted to the set of 1234-avoiding permutations and characterize the image of this map.
BARNABEI, MARILENA   +2 more
openaire   +4 more sources

Dyck Words, Lattice Paths, and Abelian Borders [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We use results on Dyck words and lattice paths to derive a formula for the exact number of binary words of a given length with a given minimal abelian border length, tightening a bound on that number from Christodoulakis et al.
F. Blanchet-Sadri   +2 more
doaj   +1 more source

Raised $k$-Dyck paths [PDF]

open access: yes, 2022
Raised $k$-Dyck paths are a generalization of $k$-Dyck paths that may both begin and end at a nonzero height. In this paper, we develop closed formulas for the number of raised $k$-Dyck paths from $(0,\alpha)$ to $(\ell,\beta)$ for all height pairs ...
Drube, Paul
core  

Applications in Enumerative Combinatorics of In finite Weighted Automata and Graphs [PDF]

open access: yesScientific Annals of Computer Science, 2014
In this paper, we present a general methodology to solve a wide variety of classical lattice path counting problems in a uniform way. These counting problems are related to Dyck paths, Motzkin paths and some generalizations. The methodology uses weighted
R. De Castro, A. Ramírez, J.L. Ramírez
doaj   +1 more source

Generating functions for a lattice path model introduced by Deutsch

open access: yesSpecial Matrices, 2021
The lattice path model suggested by E. Deutsch is derived from ordinary Dyck paths, but with additional down-steps of size −3, −5, −7, . . . . For such paths, we find the generating functions of them, according to length, ending at level i, both, when ...
Prodinger Helmut
doaj   +1 more source

Combinatorial Generation Algorithms for Some Lattice Paths Using the Method Based on AND/OR Trees

open access: yesAlgorithms, 2023
Methods of combinatorial generation make it possible to develop algorithms for generating objects from a set of discrete structures with given parameters and properties.
Yuriy Shablya
doaj   +1 more source

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