2 papers
math.CO2026
Sunflowers and Ramsey problems for restricted intersections
Barnabás Janzer, Zhihan Jin, Benny Sudakov +1
Extremal problems on set systems with restricted intersections have been an important part of combinatorics in the last 70 years. In this paper, we study the following Ramsey versi…
math.CO2026
Set mappings for general graphs
Lior Gishboliner, Zhihan Jin, Benny Sudakov
The study of extremal problems for set mappings has a long history. It was introduced in 1958 by ErdÅs and Hajnal, who considered the case of cliques in graphs and hypergraphs. Re…