Results 51 to 60 of about 8,313 (308)

A note on the generator subgraph of a graph

open access: yesElectronic Journal of Graph Theory and Applications, 2020
Graphs considered in this paper are  finite simple undirected graphs. Let G = (V(G), E(G)) be a graph with E(G) = {e1, e2,..., em}, for some positive integer m. The edge space of G, denoted by ℰ(G), is a vector space over the  field ℤ2. The elements of ℰ(
Neil Mores Mame   +1 more
doaj   +1 more source

Forbidden subgraph pairs for traceability of block-chains

open access: yesElectronic Journal of Graph Theory and Applications, 2013
A block-chain is a graph whose block graph is a path, i.e. it is either a $P_1$, a $P_2$, or a 2-connected graph, or a graph of connectivity 1 with exactly two end-blocks. A graph is called traceable if it contains a Hamilton path.
Binlong Li   +2 more
doaj   +1 more source

Induced subgraphs of Johnson graphs [PDF]

open access: yesInvolve, a Journal of Mathematics, 2012
12 pages, 4 ...
Naimi, Ramin, Shaw, Jeffrey
openaire   +3 more sources

The complexity of the connected graph access structure on seven participants

open access: yesJournal of Mathematical Cryptology, 2017
In this paper, we study an important problem in secret sharing that determines the exact value or bound for the complexity. First, we use the induced subgraph complexity of the graph G with access structure Γ to obtain a lower bound on the complexity of ...
Hadian Dehkordi Massoud, Safi Ali
doaj   +1 more source

Induced subgraphs of prescribed size [PDF]

open access: yesJournal of Graph Theory, 2003
AbstractA subgraph of a graph G is called trivial if it is either a clique or an independent set. Let q(G) denote the maximum number of vertices in a trivial subgraph of G. Motivated by an open problem of Erdős and McKay we show that every graph G on n vertices for which q(G)≤ C log n contains an induced subgraph with exactly y edges, for every y ...
Noga Alon   +2 more
openaire   +2 more sources

Certifying Induced Subgraphs in Large Graphs

open access: yesJournal of Graph Algorithms and Applications, 2023
We introduce I/O-efficient certifying algorithms for the recognition of bipartite, split, threshold, bipartite chain, and trivially perfect graphs. When the input graph is a member of the respective class, the certifying algorithm returns a certificate that characterizes this class.Otherwise, it returns a forbidden induced subgraph as a certificate for
Ulrich Meyer 0001   +2 more
openaire   +2 more sources

Implantation‐On‐Chip: An AI‐Based Platform for Monitoring the Embryo Trophoblast–Endometrial Stroma Cross Talk With Xenobiotics Interference

open access: yesAdvanced Intelligent Systems, EarlyView.
We present a novel AI‐integrated implantation‐on‐chip platform that enables mimicking and monitoring the maternal–fetal interactions at the early phases of human embryo implantation with high spatiotemporal resolution. The complexity of the trophoblast invasion process was addressed by conducting the analysis at global (rate of invasion) and local ...
Joanna Filippi   +12 more
wiley   +1 more source

Forbidden Induced Subgraphs

open access: yesElectronic 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.
openaire   +2 more sources

On maximum planar induced subgraphs

open access: yesDiscrete Applied Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Luérbio Faria   +4 more
openaire   +2 more sources

On structural controllability in complex networks with periodic switching topologies

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper investigates the structural controllability of complex networks with periodic switching topologies. First, several graph transformations that preserve structural controllability are demonstrated. Based on the n‐walk theory, a criterion is derived that determines structural controllability by analyzing only the joint graph within a ...
Jingrui Hou   +3 more
wiley   +1 more source

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