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Random induced subgraphs of Cayley graphs induced by transpositions [PDF]

open access: greenDiscrete Mathematics, 2009
In this paper we study random induced subgraphs of Cayley graphs of the symmetric group induced by an arbitrary minimal generating set of transpositions.
Emma Yu Jin, Christian M. Reidys
core   +7 more sources

Non-adaptive Group Testing on Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
Grebinski and Kucherov (1998) and Alon et al. (2004-2005) study the problem of learning a hidden graph for some especial cases, such as hamiltonian cycle, cliques, stars, and matchings.
Hamid Kameli
doaj   +3 more sources

Induced Subgraphs of the Power of a Cycle [PDF]

open access: greenSIAM Journal on Discrete Mathematics, 1989
In this article, it is shown that if G is an induced subgraph of the dth power of a cycle of length n, and G has minimum degree $d + k$, then G has at least $[ (d + k)/2d ]n$ vertices. This answers a problem of Kezdy.
J.-C. Bermond, Claudine Peyrat
openalex   +5 more sources

Eigenvalue Conditions for Induced Subgraphs [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2015
Necessary conditions for an undirected graph G to contain a graph H as induced subgraph involving the smallest ordinary or the largest normalized Laplacian eigenvalue of G are presented.
Harant Jochen   +2 more
doaj   +2 more sources

Detecting induced subgraphs [PDF]

open access: yesDiscrete Applied Mathematics, 2007
An s-graph is a graph with two kinds of edges : subdivisible edges and real edges. A realisation of an s-graphB is any graph obtained by subdividing subdivisible edges of B into paths of arbitrary length (at least one).
Benjamin Lévêque   +3 more
core   +7 more sources

Forbidden Induced Subgraphs [PDF]

open access: greenElectronic Notes in Discrete Mathematics, 2017
In descending generality I survey: five partial orderings of graphs, the induced-subgraph ordering, and examples like perfect, threshold, and mock threshold graphs. The emphasis is on how the induced subgraph ordering differs from other popular orderings and leads to different basic questions.
Thomas Zasĺavsky
openalex   +4 more sources

Isolating highly connected induced subgraphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2014
We prove that any graph $G$ of minimum degree greater than $2k^2-1$ has a $(k+1)$-connected induced subgraph $H$ such that the number of vertices of $H$ that have neighbors outside of $H$ is at most $2k^2-1$. This generalizes a classical result of Mader,
Penev, Irena   +2 more
core   +7 more sources

Large nearly regular induced subgraphs [PDF]

open access: greenSIAM Journal on Discrete Mathematics, 2007
For a real c \geq 1 and an integer n, let f(n,c) denote the maximum integer f so that every graph on n vertices contains an induced subgraph on at least f vertices in which the maximum degree is at most c times the minimum degree. Thus, in particular, every graph on n vertices contains a regular induced subgraph on at least f(n,1) vertices. The problem
Noga Alon   +2 more
openalex   +5 more sources

Induced Subgraph Saturated Graphs

open access: yesTheory and Applications of Graphs, 2016
A graph $G$ is said to be \emph{$H$-saturated} if $G$ contains no subgraph isomorphic to $H$ but the addition of any edge between non-adjacent vertices in $G$ creates one.
Craig Tennenhouse
doaj   +4 more sources

On induced subgraphs of the Hamming graph [PDF]

open access: greenJournal of Graph Theory, 2020
AbstractIn connection with his solution of the Sensitivity Conjecture, Hao Huang (arXiv: 1907.00847, 2019) asked the following question: Given a graph with high symmetry, what can we say about the smallest maximum degree of induced subgraphs of with vertices, where denotes the size of the largest independent set in ?
Dingding Dong
openalex   +5 more sources

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