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math.CO2021
On the Erdős-Purdy problem and the Zarankiewitz problem for semialgebraic graphs
Nora Frankl, Andrey Kupavskii
Erdős and Purdy, and later Agarwal and Sharir, conjectured that any set of points in determine at most congruent -simplices for even . We obtai…
math.CO2021★ 2 cited
Max-norm Ramsey Theory
Nóra Frankl, Andrey Kupavskii, Arsenii Sagdeev
Given a metric space that contains at least two points, the chromatic number is defined as the minimum number of c…