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12/03/2021
Three-chromatic geometric hypergraphs
We prove that for any planar convex body C there is a positive integer m...
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11/24/2020
Realizing an m-uniform four-chromatic hypergraph with disks
We prove that for every m there is a finite point set 𝒫 in the plane suc...
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08/24/2020
Odd wheels are not odd-distance graphs
An odd wheel graph is a graph formed by connecting a new vertex to all v...
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01/17/2020
On Covering Numbers, Young Diagrams, and the Local Dimension of Posets
We study covering numbers and local covering numbers with respect to dif...
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03/20/2019