The Polycirculant Conjecture for elusive permutation groups
Let be a finite transitive permutation group. Call elusive if it contains no derangements of prime order. The -closure of on its permutation domain is the largest subgroup of the symmetric group on that domain having the same orbits on ordered pairs as ; is -closed if it equals its -closure. Polycirculant Conjecture. There are no -closed elusive groups. This is a longstanding open problem in algebraic graph theory, with various partial results known.
References
Primary source
Jiyong Chen, Melissa Lee, Dorde Mitrovic, E. A. O'Brien and Binzhou Xia, “Elusive groups from non-split extensions”, arXiv:2508.12652 (2026).
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