53 research outputs found

    Lie rank in groups of finite Morley rank with solvable local subgroups

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    We prove a general dichotomy theorem for groups of finite Morley rank with solvable local subgroups and of Pr\"ufer p-rank at least 2, leading either to some p-strong embedding, or to the Pr\"ufer p-rank being exactly 2

    Involutive automorphisms of NN_\circ^\circ groups of finite Morley rank

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    We classify a large class of small groups of finite Morley rank: NN_\circ^\circ-groups which are the infinite analogues of Thompson's NN-groups. More precisely, we constrain the 22-structure of groups of finite Morley rank containing a definable, normal, non-soluble, NN_\circ^\circ-subgroup

    Simple groups of Morley rank 5 are bad

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    By exploiting the geometry of involutions in NN_\circ^\circ-groups of finite Morley rank, we show that any simple group of Morley rank 55 is a bad group all of whose proper definable connected subgroups are nilpotent of rank at most 22. The main result is then used to catalog the nonsoluble connected groups of Morley rank 55

    Rank 3 Bingo

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    We classify irreducible actions of connected groups of finite Morley rank on abelian groups of Morley rank 3
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