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math.CO2024
An improved bound on Seymour's second neighborhood conjecture
Hao Huang, Fei Peng
Seymour's celebrated second neighborhood conjecture, now more than thirty years old, states that in every oriented digraph, there is a vertex such that the size of its second o…
math.CO2020★ 2 cited
Distribution of missing differences in diffsets
Scott Harvey-Arnold, Steven J. Miller, Fei Peng
Lazarev, Miller and O'Bryant investigated the distribution of for chosen uniformly at random from , and proved the existence of a divot at missing…