Friday, August 6, 2021

Friday, August 6, 2021 — 3:30 PM EDT

Title: The size Ramsey numbers of graphs and hypergraphs

Speaker: Liana Yepremyan Affiliation: London School of Economics Zoom: Please email Emma Watson

Abstract:

The s-colour size-Ramsey number of a graph ( hypergraph) H is the minimum number of edges in a graph (hypergraph) G whose every s-edge-colouring contains a monochromatic copy of H. While the   study of size Ramsey numbers for graphs  goes back to 70's to the work of Erdos, Faudree, Rousseau and Schelp, the systematic study of these numbers for hypergraphs have been initiated much more recently in 2017  by Dudek, La Fleur, Mubayi, and Rödl. In this talk we will present the current known results in the literature, and some recent progress we have made on several questions in the area.

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