Subdivided graphs have linear ramsey numbers

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Subdivided graphs have linear ramsey numbers

It is shown that the Ramsey number of any graph with n vertices in which no two vertices of degree at least 3 are adjacent is at most 12n. In particular, the above estimate holds for the Ramsey number of any n-vertex subdivision of an arbitrary graph, provided each edge of the original graph is subdivided at least once. This settles a problem of Burr and Erdös.

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On graphs with linear Ramsey numbers

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On Bipartite Graphs with Linear Ramsey Numbers

We provide an elementary proof of the fact that the ramsey number of every bipartite graph H with maximum degree at most ∆ is less than 8(8∆)|V (H)|. This improves an old upper bound on the ramsey number of the n-cube due to Beck, and brings us closer toward the bound conjectured by Burr and Erdős. Applying the probabilistic method we also show that for all ∆≥1 and n≥∆+1 there exists a bipartit...

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Turán Numbers of Subdivided Graphs

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3-Uniform hypergraphs of bounded degree have linear Ramsey numbers

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ژورنال

عنوان ژورنال: Journal of Graph Theory

سال: 1994

ISSN: 0364-9024,1097-0118

DOI: 10.1002/jgt.3190180406