Shi's recognition-by-spectrum conjecture for finite simple groups

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Let GG be a simple group and let HH be a group. Write ∣G∣|G| for the order of GG and let ω(G)\omega(G) denote the set of element orders of GG. Shi's conjecture. H≅GH\cong G if and only if

∣H∣=∣G∣andω(H)=ω(G).|H|=|G|\quad\text{and}\quad\omega(H)=\omega(G).

This conjecture asserts that a finite simple group is determined up to isomorphism by its order and spectrum. The supplied text does not state whether it has been resolved.

References

Primary source

Natalia V. Maslova, “On arithmetical properties and arithmetical characterizations of finite groups”, arXiv:2401.04633 (2025).

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