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Induced subgraph information


In the mathematical field of graph theory, an induced subgraph of a graph is another graph, formed from a subset of the vertices of the graph and all of the edges, from the original graph, connecting pairs of vertices in that subset.

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Induced subgraph

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graphs, and even multigraphs. The induced subgraph G [ S ] {\displaystyle G[S]} may also be called the subgraph induced in G {\displaystyle G} by S {\displaystyle...

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Glossary of graph theory

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other graphs as subgraphs, induced subgraphs, or minors. If H is one of the graphs that does not occur as a subgraph, induced subgraph, or minor, then...

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Induced subgraph isomorphism problem

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graph theory, induced subgraph isomorphism is an NP-complete decision problem that involves finding a given graph as an induced subgraph of a larger graph...

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Maximum common induced subgraph

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computer science, a maximum common induced subgraph of two graphs G and H is a graph that is an induced subgraph of both G and H, and that has as many...

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Forbidden graph characterization

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graphs from the family which contain any of these forbidden graphs as (induced) subgraph or minor. A prototypical example of this phenomenon is Kuratowski's...

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Graph theory

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problem is finding induced subgraphs in a given graph. Again, some important graph properties are hereditary with respect to induced subgraphs, which means...

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Induced path

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mathematical area of graph theory, an induced path in an undirected graph G is a path that is an induced subgraph of G. That is, it is a sequence of vertices...

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Line graph

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these nine graphs as an induced subgraph. That is, a graph is a line graph if and only if no subset of its vertices induces one of these nine graphs...

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Rado graph

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graph is an induced subgraph of the Rado graph, and can be found as an induced subgraph by a greedy algorithm that builds up the subgraph one vertex at...

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Maximum common subgraph

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computer science, a maximum common subgraph may mean either: Maximum common induced subgraph, a graph that is an induced subgraph of two given graphs and has...

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Subgraph isomorphism problem

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an extension of subgraph isomorphism known as graph mining is also of interest in that area. Frequent subtree mining Induced subgraph isomorphism problem...

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Planarization

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induced subgraph of a given graph. Again, this is NP-hard, but fixed-parameter tractable when all but a few vertices belong to the induced subgraph....

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Perfect graph

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size of the maximum clique, both in the graph itself and in every induced subgraph. In all graphs, the chromatic number is greater than or equal to the...

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Property testing

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a subgraph is testable. In 1999, Alon, Fischer, Krivelevich, and Szegedy showed that for every graph H the property of not contain H as an induced subgraph...

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Complement graph

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and vice versa. Any induced subgraph of the complement graph of a graph G is the complement of the corresponding induced subgraph in G. An independent...

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Cograph

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nontrivial induced subgraph has at least two vertices with the same neighbourhoods. A cograph is a graph in which every connected induced subgraph has a disconnected...

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Maximum cut

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cycle transversal, equivalent to asking for the largest bipartite induced subgraph Unfriendly partition, a related concept for infinite graphs Edwards...

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Perfect graph theorem

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their forbidden induced subgraphs. A perfect graph is an undirected graph with the property that, in every one of its induced subgraphs, the size of the...

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Clique problem

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product of graphs to reduce the problem of finding the maximum common induced subgraph of two graphs to the problem of finding a maximum clique in their product...

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Graph power

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graph, for k > 2. The half-square of a bipartite graph G is the subgraph of G2 induced by one side of the bipartition of G. Map graphs are the half-squares...

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Induced matching

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vertices which are endpoints of the matching edges (it is an induced subgraph). An induced matching can also be described as an independent set in the...

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Skew partition

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into two subsets, such that the induced subgraph formed by one of the two subsets is disconnected and the induced subgraph formed by the other subset is...

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Handshaking lemma

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Krivelevich, Michael (2020). "Every graph contains a linearly sized induced subgraph with all degrees odd". arXiv:2009.05495 [math.CO]. Honner, Patrick...

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