Results 31 to 40 of about 59,293 (196)

Girth-Based Sequential-Recovery LRCs

open access: yesIEEE Access, 2022
In this paper, we prove that a linear block code with girth $2(t+1)$ is a $t$ -sequential-recovery locally repairable codes (LRCs) with locality $r$ if its parity-check matrix has column weight at least 2 and row weight at most $r+1$ . This gives a
Zhi Jing, Hong-Yeop Song
doaj   +1 more source

Girth-regular graphs

open access: yesArs Mathematica Contemporanea, 2019
20 pages, 6 ...
Primoz Potocnik, Janos Vidali
openaire   +5 more sources

Modèle de croissance pour les plantations de mélèzes [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2003
Growth model forlarch in pure and even-aged stands. Adistance independent tree growth model has been determined forpure and even-aged larch stands (Larix sp.) growing in Walloon Region (South Belgium).
Rondeux J., Lejeune P., Pauwels D.
doaj  

Spectra of Orders for k-Regular Graphs of Girth g

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A (k, g)-graph is a k-regular graph of girth g. Given k ≥ 2 and g ≥ 3, infinitely many (k, g)-graphs of infinitely many orders are known to exist. Our goal, for given k and g, is the classification of all orders n for which a (k, g)-graph of order n ...
Jajcay Robert, Raiman Tom
doaj   +1 more source

Some spectral and quasi-spectral characterizations of distance-regular graphs [PDF]

open access: yes, 2016
© . This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/In this paper we consider the concept of preintersection numbers of a graph.
Abiad, Aida   +2 more
core   +2 more sources

Extremal Graphs for Sombor Index with Given Parameters

open access: yesAxioms, 2023
In this paper, we present the upper and lower bounds on Sombor index SO(G) among all connected graphs (respectively, connected bipartite graphs). We give some sharp lower and upper bounds on SO(G) among connected graphs in terms of some parameters ...
Wanping Zhang, Jixiang Meng, Na Wang
doaj   +1 more source

Characterization of classes of graphs with large general position number

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Getting inspired by the famous no-three-in-line problem and by the general position subset selection problem from discrete geometry, the same is introduced into graph theory as follows.
Elias John Thomas, Ullas Chandran S. V.
doaj   +1 more source

Wiener index in graphs given girth, minimum, and maximum degrees

open access: yesTheory and Applications of Graphs, 2023
Let $G$ be a connected graph of order $n$. The Wiener index $W(G)$ of $G$ is the sum of the distances between all unordered pairs of vertices of $G$.
Fadekemi J. Osaye   +3 more
doaj   +1 more source

Diameter and girth of Torsion Graph

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
Let R be a commutative ring with identity. Let M be an R-module and T (M)* be the set of nonzero torsion elements. The set T(M)* makes up the vertices of the corresponding torsion graph, ΓR(M), with two distinct vertices x, y ∈ T(M)* forming an edge if ...
Rad P. Malakooti   +3 more
doaj   +1 more source

Hierarchical and High-Girth QC LDPC Codes

open access: yes, 2011
We present a general approach to designing capacity-approaching high-girth low-density parity-check (LDPC) codes that are friendly to hardware implementation.
Draper, Stark C.   +2 more
core   +2 more sources

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