Outer Diversity of Structured Domains

Piotr Faliszewski, Krzysztof Sornat, Stanisław Szufa, Tomasz Wąs
2/17/2026
cs.GTcs.AIcs.MA

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Abstract

An ordinal preference domain is a subset of preference orders that the voters are allowed to cast in an election. We introduce and study the notion of outer diversity of a domain and evaluate its value for a number of well-known structured domains, such as the single-peaked, single-crossing, group-separable, and Euclidean ones.

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Cite this paper

@article{faliszewski2026outer,
  title  = {Outer Diversity of Structured Domains},
  author = {Piotr Faliszewski and Krzysztof Sornat and Stanisław Szufa and Tomasz Wąs},
  year   = {2026},
  eprint = {2602.15708},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2602.15708v1}
}

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