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Erdős Rado Sunflower Theorem for Shifted Families

Year: 2026
Type: preprint
Abstract: Let $f(k,s)$ denote the minimum integer $m$ such that any family $\mathcal{F}$ consisting of $k$-sized sets of cardinality at least $m$ always contain a sunflower of size $s$. The Erdős-Rado Sunflower Conjecture states that for every $s >2$, there is an constant $C=C(s)$ such that $f(k,s) \leq C^k$. In this paper, we prove the conjecture for shifted families.
Open Access status: green
OpenAlex ID: W7163346497
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