2 citations · 2 across the 10 of their papers we have counts for
Showing 2024Show all
3 papers · 1 filter
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.GR2024
Measure doubling in unimodular locally compact groups and quotients
Zuxiang Kong, Fei Peng, Chieu-Minh Tran
We consider a (possibly discrete) unimodular locally compact group with Haar measure , and a compact of positive measure with . Let $H…
math.CO2024
A variable version of the quasi-kernel conjecture
Jiangdong Ai, Xiangzhou Liu, Fei Peng
A quasi-kernel of a digraph is an independent set such that every vertex can reach in at most two steps. A 48-year conjecture made by P.L. Erdős and Székely, denoted th…