Results 21 to 30 of about 1,109,500 (204)

Generalized Dyck paths

open access: yesDiscrete Mathematics, 1990
Let \({\mathcal S}\) be a finite multi-set (a set with repetitions) of vectors in \({\mathbb{N}}\times {\mathbb{N}}\) and let \({\mathcal S}^*=\{(r,-s)+(r,s)\in {\mathcal S}\}.\) An A-path (\({\mathcal S}\)-Dyck path) is a path in \({\mathbb{Z}}\times {\mathbb{Z}}\) which starts from (0,0) and ends on the x-axis, uses only vectors from \({\mathcal S}+{\
Jacques Labelle, Yeong-Nan Yeh
openaire   +2 more sources

Minimal and maximal plateau lengths in Motzkin paths [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
The minimal length of a plateau (a sequence of horizontal steps, preceded by an up- and followed by a down-step) in a Motzkin path is known to be of interest in the study of secondary structures which in turn appear in mathematical biology. We will treat
Helmut Prodinger, Stephan Wagner
doaj   +1 more source

Dyck paths, Motzkin paths and traffic jams [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2004
It has recently been observed that the normalization of a one-dimensional out-of-equilibrium model, the Asymmetric Exclusion Process (ASEP) with random sequential dynamics, is exactly equivalent to the partition function of a two-dimensional lattice path model of one-transit walks, or equivalently Dyck paths.
Blythe, R. A.   +3 more
openaire   +3 more sources

Bijections for lattice paths between two boundaries [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We prove that on the set of lattice paths with steps $N=(0,1)$ and $E=(1,0)$ that lie between two boundaries $B$ and $T$, the two statistics `number of $E$ steps shared with $B$' and `number of $E$ steps shared with $T$' have a symmetric joint ...
Sergi Elizalde, Martin Rubey
doaj   +1 more source

The sandpile model, polyominoes, and a $q,t$-Narayana polynomial [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We give a polyomino characterisation of recurrent configurations of the sandpile model on the complete bipartite graph $K_{m,n}$ in which one designated vertex is the sink.
Mark Dukes, Yvan Le Borgne
doaj   +1 more source

A Bijection on Bilateral Dyck Paths

open access: yesAustralas. J Comb., 2012
revised ...
Paul R. G. Mortimer, Thomas Prellberg
openaire   +3 more sources

A Bijection between Unbalanced Dyck Path and NE Lattice Path [PDF]

open access: yes, 2023
Lattice paths are important tools on solving some combinatorial identities. This note gives a new bijection between unbalanced Dyck path (a path that never reaches the diagonal of the lattice) and NE (North and East only) lattice path from (0,0) to (n,n)
Qian, Yannan
core  

Patterns in matchings and rook placements [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
Extending the notion of pattern avoidance in permutations, we study matchings and set partitions whose arc diagram representation avoids a given configuration of three arcs.
Jonathan Bloom, Sergi Elizalde
doaj   +1 more source

Dyck paths with coloured ascents

open access: yesEuropean Journal of Combinatorics, 2008
We introduce a notion of Dyck paths with coloured ascents. For several ways of colouring, we establish bijections between sets of such paths and other combinatorial structures, such as non-crossing trees, dissections of a convex polygon, etc. In some cases enumeration gives new expression for sequences enumerating these structures.
Andrei Asinowski, Toufik Mansour
openaire   +3 more sources

Dyck paths of knight moves

open access: yesDiscrete Applied Mathematics, 1989
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jacques Labelle, Yeong-Nan Yeh
openaire   +2 more sources

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