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Here we analyze a proper 2-generated core in a minimal counter example to the Cherlin-Zilber Algebraicity Conjecture for simple groups of finite Morley rank. We ultimately show that such a group is strongly embedded and the ambiant group is…

Group Theory · Mathematics 2014-02-26 Alexandre Borovik , Jeffrey Burdges , Ali Nesin

We examine Weyl groups of minimal connected simple groups of finite Morley rank of degenerate type. We show that they are cyclic, and lift isomorphically to subgroups of the ambient group.

Group Theory · Mathematics 2009-04-21 Jeffrey Burdges , Adrien Deloro

We lay down the fundations of the theory of groups of finite Morley rank in which local subgroups are solvable and we proceed to the local analysis of these groups. We prove the main Uniqueness Theorem, analogous to the Bender method in…

Group Theory · Mathematics 2008-03-27 Adrien Deloro , Eric Jaligot

We prove a Jordan decomposition theorem for minimal connected simple groups of finite Morley rank with non-trivial Weyl group. From this, we deduce a precise structural description of Borel subgroups of this family of simple groups. Along…

Logic · Mathematics 2010-09-17 Tuna Altinel , Jeffrey Burdges , Oliver Frecon

We prove several results about groups of finite Morley rank without unipotent p-torsion: p-torsion always occurs inside tori, Sylow p-subgroups are conjugate, and p is not the minimal prime divisor of our approximation to the ``Weyl…

Logic · Mathematics 2008-01-28 Jeffrey Burdges , Gregory Cherlin

We consider groups of finite Morley rank with solvable local subgroups of even and mixed types. We also consider miscellaneous aspects of small groups of finite Morley rank of odd type.

Group Theory · Mathematics 2008-09-15 Adrien Deloro , Eric Jaligot

We show that a minimal counter example to the Cherlin-Zilber Algebraicity Conjecture for simple groups of finite Morley rank has Prufer 2-rank at most two. This article covers the signalizer functor theory and identifies the groups of Lie…

Logic · Mathematics 2008-11-28 Jeffrey Burdges

We classify a large class of small groups of finite Morley rank: $N_\circ^\circ$-groups which are the infinite analogues of Thompson's $N$-groups. More precisely, we constrain the $2$-structure of groups of finite Morley rank containing a…

Group Theory · Mathematics 2016-10-05 Adrien Deloro , Eric Jaligot

This article proves a version of the Feit-Thompson theorem for simple groups of finite Morley rank: a connected groups of finite Morley rank with a finite Sylow 2-subgroup has a trivial Sylow 2-subgroups.

Logic · Mathematics 2007-11-28 Alexandre Borovik , Jeffrey Burdges , Gregory Cherlin

We show that a minimal nonalgebraic simple groups of finite Morley rank has Prufer rank at most 2, and eliminates tameness from Cherlin and Jaligot's past work on minimal simple groups. The argument given here begins with the strongly…

Group Theory · Mathematics 2007-11-28 Jeffrey Burdges , Gregory Cherlin , Eric Jaligot

Let $G$ be a residually finite, good group of finite virtual cohomological dimension. We prove that the natural monomorphism $G\hookrightarrow\hat{G}$ induces a bijective correspondence between conjugacy classes of finite $p$-subgroups of…

Group Theory · Mathematics 2024-10-29 Marco Boggi , Pavel Zalesskii

Several structural results about permutation groups of finite rank definable in differentially closed fields of characteristic zero (and other similar theories) are obtained. In particular, it is shown that every finite rank definably…

Logic · Mathematics 2024-12-17 James Freitag , Léo Jimenez , Rahim Moosa

This paper develops some general results about actions of finite groups on (infinite) abelian groups in the finite Morley rank category. They are linked to a range of problems on groups of finite Morley rank discussed in [16]. Crucially,…

Group Theory · Mathematics 2024-07-24 Alexandre Borovik

By exploiting the geometry of involutions in $N_\circ^\circ$-groups of finite Morley rank, we show that any simple group of Morley rank $5$ is a bad group all of whose proper definable connected subgroups are nilpotent of rank at most $2$.…

Logic · Mathematics 2017-07-10 Adrien Deloro , Joshua Wiscons

This paper contains a stronger version of a final identification theorem for the `generic' groups of finite Morley rank.

Group Theory · Mathematics 2011-11-28 Ayse Berkman , Alexandre Borovik

We give an algebraic description of the structure of the analytic universal cover of a complex abelian variety which suffices to determine the structure up to isomorphism. More generally, we classify the models of theories of "universal…

Logic · Mathematics 2021-07-14 Martin Bays , Bradd Hart , Anand Pillay

There is a longstanding conjecture, due to Gregory Cherlin and Boris Zilber, that all simple groups of finite Morley rank are simple algebraic groups. One of the major theorems in the area is Borovik's trichotomy theorem. The "trichotomy"…

Logic · Mathematics 2007-11-26 Jeffrey Burdges

We introduce and develop the model-theoretic notions of absolute connectedness and type-absolute connectedness for groups. We prove that groups of rational points of split semisimple linear groups (that is, Chevalley groups) over arbitrary…

Group Theory · Mathematics 2012-09-10 Jakub Gismatullin

The compact, connected Lie group $E_6$ admits two forms: simply connected and adjoint type. As we previously established, the Baum-Connes isomorphism relates the two Langlands dual forms, giving a duality between the equivariant K-theory of…

Group Theory · Mathematics 2023-06-14 Graham A. Niblo , Roger Plymen , Nick Wright

The present survey aims at being a list of Conjectures and Problems in an area of model-theoretic algebra wide open for research, not a list of known results. To keep the text compact, it focuses on structures of finite Morley rank,…

Logic · Mathematics 2019-09-09 Alexandre Borovik , Adrien Deloro
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