Sparse universal graphs

Noga Alon; Vera Asodi

doi:10.1016/S0377-0427(01)00455-1

Sparse universal graphs

Noga Alon, Vera Asodi

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

For every n, we describe an explicit construction of a graph on n vertices with at most O(n^2-ε) edges, for ε=0.133..., that contains every graph on n vertices with maximum degree 3 as a subgraph. It is easy to see that each such graph must have at least Ω(n^4/3) edges. We also show that the minimum number of edges of a graph that contains every graph with n edges as a subgraph is Θ(n²/(log² n)). This improves a result of Babai, Chung, Erdös, Graham and Spencer (Ann. Discrete Math. 12 (1982) 21-26).

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	Journal of Computational and Applied Mathematics
Volume	142
Issue number	1
DOIs	https://doi.org/10.1016/S0377-0427(01)00455-1
State	Published - 1 May 2002
Externally published	Yes

ASJC Scopus subject areas

Computational Mathematics
Applied Mathematics

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10.1016/S0377-0427(01)00455-1

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AU - Asodi, Vera

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AB - For every n, we describe an explicit construction of a graph on n vertices with at most O(n2-ε) edges, for ε=0.133..., that contains every graph on n vertices with maximum degree 3 as a subgraph. It is easy to see that each such graph must have at least Ω(n4/3) edges. We also show that the minimum number of edges of a graph that contains every graph with n edges as a subgraph is Θ(n2/(log2 n)). This improves a result of Babai, Chung, Erdös, Graham and Spencer (Ann. Discrete Math. 12 (1982) 21-26).

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Sparse universal graphs

Abstract

ASJC Scopus subject areas

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