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math.CO2022
A note on directed analogues of the Sidorenko and forcing conjectures
Jacob Fox, Zoe Himwich, Nitya Mani +1
We study analogues of Sidorenko's conjecture and the forcing conjecture in oriented graphs, showing that natural variants of these conjectures in directed graphs are equivalent to…
math.CO2022
Small subsets with large sumset: Beyond the Cauchy--Davenport bound
Jacob Fox, Sammy Luo, Huy Tuan Pham +1
For a subset of an abelian group , given its size , its doubling , and a parameter which is small compared to , we study the size of the largest s…
math.NT2022★ 2 cited
On product sets of arithmetic progressions
Max Wenqiang Xu, Yunkun Zhou
We prove that the size of the product set of any finite arithmetic progression satisfies \[|\mathcal A \cdot \mathcal A| \ge \frac{|\mathcal A|^2}{(…