Erdős–Stone theorem

E554300

The Erdős–Stone theorem is a fundamental result in extremal graph theory that asymptotically determines the maximum number of edges in an n-vertex graph that avoids containing a given subgraph.

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Predicate Object
instanceOf result in extremal graph theory
theorem
appliesTo finite simple graphs
n-vertex graphs
assumes fixed forbidden graph H independent of n
characterizes maximum number of edges in an n-vertex graph avoiding a fixed subgraph
classification cornerstone of modern extremal combinatorics
concerns Turán-type extremal problems
asymptotic edge density
extremal number of edges in graphs
forbidden subgraphs
domain n → ∞ asymptotic regime
field extremal graph theory
graph theory
generalizes Turán’s theorem
linked to: Turán's theorem
givesAsymptoticsFor extremal function ex(n,H)
hasVariant Erdős–Stone–Simonovits theorem
implies extremal edge density depends only on chromatic number of forbidden graph for non-bipartite H
graphs with many edges contain large complete multipartite subgraphs
influenced development of extremal graph theory
involvesConcept chromatic number χ(H)
edge density
forbidden subgraph H
o(1) term in asymptotics
isDescribedAs asymptotic solution to general Turán-type problems for non-bipartite graphs
fundamental result in extremal graph theory
namedAfter Arthur H. Stone
Paul Erdős
linked to: Pál Erdős
originalAuthors Arthur H. Stone
Paul Erdős
linked to: Pál Erdős
publishedIn Proceedings of the London Mathematical Society
relatedConcept complete (χ(H)-1)-partite Turán graph
relatesTo Turán’s theorem
linked to: Turán's theorem

chromatic number of a graph
saysAsymptoticallyEquivalentTo edge number of Turán graph T_{χ(H)-1}(n) for non-bipartite H
statesThat for every non-bipartite graph H, ex(n,H) = (1 - 1/(χ(H)-1) + o(1)) * n^2 / 2
topic forbidden subgraph problems in dense graphs
typeOfResult asymptotic extremal bound
usedFor estimating extremal numbers for non-bipartite forbidden graphs
proving existence of dense substructures in graphs
yearProved 1946

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Referenced by (4)

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Pál Erdős knownFor Erdős–Stone theorem
Erdős–Stone theorem hasVariant Erdős–Stone–Simonovits theorem
linked to: Erdős–Stone theorem
Turán's theorem relatedTo Erdős–Stone theorem
Hungarian school of combinatorics knownFor Erdős–Stone theorem