Results 1 to 10 of about 55,578 (283)

Low-Density Parity-Check Codes from Transversal Designs with Improved Stopping Set Distributions [PDF]

open access: yesIEEE Transactions on Communications, 2013
This paper examines the construction of low-density parity-check (LDPC) codes from transversal designs based on sets of mutually orthogonal Latin squares (MOLS). By transferring the concept of configurations in combinatorial designs to the level of Latin
Er Gruner, Michael Huber, Student Member
exaly   +3 more sources

On the number of transversal designs

open access: yesJournal of Combinatorial Theory - Series A, 2013
Bounds are obtained on the number of distinct transversal designs TD(g, n) (having g groups with n points in each group) for certain values of g and n. Amongst other results it is proved that, if 2 < g ≤ q + 1 where q is a prime power, then the number of nonisomorphic TD(g, ) designs is at least qαrq2r(1-o(1)) as r → ∞ , where α = 1/.
Diane M Donovan
exaly   +5 more sources

Transversal designs and induced decompositions of graphs [PDF]

open access: yesJournal of Combinatorics, 2015
We prove that for every complete multipartite graph $F$ there exist very dense graphs $G_n$ on $n$ vertices, namely with as many as ${n\choose 2}-cn$ edges for all $n$, for some constant $c=c(F)$, such that $G_n$ can be decomposed into edge-disjoint ...
Bujtás, Csilla, Tuza, Zsolt
core   +4 more sources

Embeddable transversal designs

open access: yesDiscrete Mathematics, 1980
The embeddability of certain (group) divisible designs in symmetric 2-designs is investigated. These designs are symmetric resolvable transversal designs. It is proved that all such transversal designs with v = 2k are embeddable and some necessary and sufficient conditions for other cases are given.
Vc Mavron
exaly   +3 more sources

Transversals and blocking sets in H^(3)-designs

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2018
If H^(h) is a subhypergraph of order n of K_v^(h), the complete and h-uniform hypergraph of order v, an H^(h)-decomposition of K_v^(h), also called an H^(h)-design of order v, is a pair Σ=(X,B), where B is a partition of the edge-set of K_v^(h) into ...
Valerio Castelli   +2 more
doaj   +2 more sources

Influence of pacifier design on pacifier-palate contact: a finite element analysis [PDF]

open access: yesHead & Face Medicine
Objective The study compares the contact pressure and pressure distribution of various pacifier shapes on the palatal surfaces of newborns and six-month-old infants using nonlinear finite element analysis (FEA).
Michaela Maintz   +3 more
doaj   +2 more sources

A contraction of square transversal designs

open access: yesDiscrete Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yutaka Hiramine, Chihiro Suetake
exaly   +2 more sources

Transversal Designs of Block Size Eight and Nine

open access: yesEuropean Journal of Combinatorics, 1996
The author uses a mixture of direct and recursive constructions to almost settle the existence problem for transversal designs with index \(\lambda> 1\) and block sizes \(k= 8\) and \(k= 9\) (with just a few open cases). This is a major result, since it is the first result that goes beyong the work of Hanani who settled the corresponding problem for ...
exaly   +3 more sources

On Graph-Transversal Designs and Graph-Authentication Codes Based on Mutually Orthogonal Graph Squares

open access: yesJournal of Mathematics, 2022
Combinatorial designs have many interesting and genuine wide applications in areas including analysis and design of algorithms, cryptography, analysis and design of experiments, storage system design, tournament scheduling, optical communications, and ...
A. El-Mesady   +2 more
doaj   +1 more source

A Systematic Review on Distributed Arithmetic-Based Hardware Implementation of Adaptive Digital Filters

open access: yesIEEE Access, 2023
Adaptive Digital Filters (ADFs) are computationally demanding Digital Signal Processing (DSP) systems with applications in diverse areas signal processing, such as active noise control, channel equalization, system identification.
Sanzhar Yergaliyev   +1 more
doaj   +1 more source

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