Hrushovski's pseudofinite fixed-point conjecture for generic automorphisms

Let GG be an infinite simple group of finite Morley rank, and let α\alpha be a generic automorphism of GG. The group of fixed points of α\alpha is {gG:α(g)=g}\{g\in G:\alpha(g)=g\}.

Hrushovski's fixed-point conjecture. The group of fixed points of α\alpha is pseudofinite, that is, an infinite model of the theory of finite groups.

The conjecture is implied by the Algebraicity Conjecture and concerns a proposed bridge between simple groups of finite Morley rank and pseudofinite groups. The source gives no resolution, so its status remains open.

Sources & referencesView supporting material

Primary source

Pınar Uğurlu, “Pseudofinite groups as fixed points in simple groups of finite Morley rank”, arXiv:1201.6317 (2012).

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