Piercing numbers in approval voting

@article{Su2019PiercingNI,
  title={Piercing numbers in approval voting},
  author={Francis Edward Su and Shira Zerbib},
  journal={Math. Soc. Sci.},
  year={2019},
  volume={101},
  pages={65-71}
}

Figures from this paper

Approval Voting in Circular Societies: Piercing Numbers and Agreement
TLDR
This paper explores piercing numbers and agreement in the setting where preferences can be modeled by arcs on a circle -- i.e., in circular societies with fixed-length approval sets, and gives bounds on piercing and agreement.
Piercing Numbers in Circular Societies
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