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Regularity inheritance in pseudorandom graphs
(Wiley, 2020)
Advancing the sparse regularity method, we prove one-sided and two-sided regularity inheritance lemmas for subgraphs of bijumbled graphs, improving on results of Conlon, Fox, and Zhao. These inheritance lemmas also imply ...
Regularity inheritance in pseudorandom graphs
(John Wiley and Sons Ltd, 2020)
Advancing the sparse regularity method, we prove one-sided and two-sided regularity inheritance lemmas for subgraphs of bijumbled graphs, improving on results of Conlon, Fox, and Zhao. These inheritance lemmas also imply ...
The approximate loebl-komlos-sos conjecture and embedding trees in sparse graphs
(Amer Inst Mathematical Sciences, 2015)
Loebl, Komlos and Sos conjectured that every n-vertex graph G with at least n/2 vertices of degree at least k contains each tree T of order k + 1 as a subgraph. We give a sketch of a proof of the approximate version of ...
Weak hypergraph regularity and linear hypergraphs
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2010)
We consider conditions which allow the embedding of linear hypergraphs of fixed size. In particular, we prove that any k-uniform hypergraph H of positive uniform density contains all linear k-uniform hypergraphs of a given ...
The approximate Loebl-Komlós-Sós conjecture I: The sparse decomposition
(Society for Industrial and Applied Mathematics Publications, 2017)
In a series of four papers we prove the following relaxation of the Loebl–Koml ́os–S ́os Con-jecture: For everyα >0 there exists a numberk0such that for everyk > k0everyn-vertexgraphGwith at least (12+α)nvertices of degree ...
The approximate Loebl-Komlós-Sós conjecture II: The rough structure of LKS graphs
(Society for Industrial and Applied Mathematics, 2017)
This is the second of a series of four papers in which we prove the following relaxation of the Loebl-Komlós-Sós conjecture: For every α > 0 there exists a number k0 such that for every k > k0, every n-vertex graph ...
The approximate Loebl-Komlós-Sós conjecture III: The finer structure of LKS graphs
(Society for Industrial and Applied Mathematics, 2017)
This is the third of a series of four papers in which we prove the following relaxation ofthe Loebl–Komlós–S ́os Conjecture: For everyα >0 there exists a numberk0such that foreveryk > k0everyn-vertex ...
The approximate Loebl-Komlós-Sós conjecture IV: Embedding techniques and the proof of the main result
(Society for Industrial and Applied Mathematics Publications, 2017)
This is the last of a series of four papers in which we prove the following relaxation of the Loebl-Komlós-Sós conjecture: For every α > 0 there exists a number k0 such that for every k > k0, every n-vertex graph G ...
Sparse partition universal graphs for graphs of bounded degree
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011)
In 1983, Chvatal, Trotter and the two senior authors proved that for any Delta there exists a constant B such that, for any n, any 2-colouring of the edges of the complete graph K(N) with N >= Bn vertices yields a monochromatic ...
A note on permutation regularity
(ELSEVIER SCIENCE BVAMSTERDAM, 2012-12)
The existence of a small partition of a combinatorial structure into random-like subparts, a so-called regular partition, has proven to be very useful in the study of extremal problems, and has deep algorithmic consequences. ...