Results 101 to 110 of about 20,234 (200)

Lattice-Like Total Perfect Codes

open access: yesDiscussiones Mathematicae Graph Theory, 2014
A contribution is made to the classification of lattice-like total perfect codes in integer lattices Λn via pairs (G, Φ) formed by abelian groups G and homomorphisms Φ: Zn → G.
Araujo Carlos, Dejter Italo
doaj   +1 more source

Counting lattice paths by Narayana polynomials, Electron

open access: yes, 2000
Let d(n) count the lattice paths from (0,0) to (n, n) using the steps (0,1), (1,0), and (1,1). Let e(n) count the lattice paths from (0,0) to (n, n) with permitted steps from the step set N × N −{(0,0)}, where N denotes the nonnegative integers.
Robert A. Sulanke
core  

Limit laws for lattice paths with catastrophes

open access: yes, 2022
In queuing theory, it is usual to have some models with a "reset" of the queue. In terms of lattice paths or random walks, it is like having the possibility of jumping from any altitude to zero.
Wallner, Michael; orcid:
core  

Refined lattice path enumeration and combinatorial reciprocity [PDF]

open access: yesEnumerative Combinatorics and Applications, 2023
Henri M\"uhle, Eleni Tzanaki
doaj   +1 more source

Generating functions of lattice paths

open access: yes
We recall the main types of \emph{lattice paths}, which are sequences in the lattice of integer coordinates points in the plane. We start with the fundamental \emph{central lattice paths} and \emph{Dyck paths} and proceed in elementary terms through ...
Duarte, Rui   +1 more
core  

Basic Analytic Combinatorics of Directed Lattice Paths

open access: yes, 2001
This paper develops a uni ed enumerative and asymptotic theory of directed 2-dimensional lattice paths in half-planes and quarter ...
Flajolet, P.   +5 more
core   +1 more source

Enumeration of Lattice Paths with Restrictions

open access: yes
Lattice path enumeration, through the lens of Catalan numbers, plays a crucial role in combinatorics. This thesis delves into enumerations of some of the most common lattice paths – north-east paths, up-down paths, and Dyck paths – with restrictions ...
White, Vince
core  

Higher dimensional restricted lattice paths with diagonal steps

open access: yes, 1991
In this paper, restricted minimal lattice paths with horizontal, vertical, and diagonal steps, in two and higher dimensions are discussed. The Delannoy numbers, the numbers of unrestricted minimal lattice paths with diagonal steps, and some of their ...
Kaparthi, Shashidhar, Rao, H.Raghav
core   +1 more source

Playing with paths: enumerating sets of embellished lattice paths

open access: yes, 2012
© 2012 Dr. Paul W. T. FijnThis thesis primarily examines several problems in enumerative combinatorics, particu- larly those related to sets of (binomial) paths on an integer lattice.
Fijn, Paul W. T.
core  

Lattice paths and the q-ballot polynomials

open access: yesAdvances in Applied Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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