Generators for finite groups with a unique minimal normal subgroup
Andrea Lucchini, Federico Menegazzo (1997)
Rendiconti del Seminario Matematico della Università di Padova
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Displaying similar documents to “Automorphism groups of Shimura varieties.”
Generators for finite groups with a unique minimal normal subgroup
A dimension formula for Ekedahl-Oort strata
Ben Moonen (2004)
Annales de l’institut Fourier
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We study the Ekedahl-Oort stratification on moduli spaces of PEL type. The strata are indexed by the classes in a Weyl group modulo a subgroup, and each class has a distinguished representative of minimal length. The main result of this paper is that the dimension of a stratum equals the length of the corresponding Weyl group element. We also discuss some explicit examples.
Automorphisms of -groups with cyclic commutator subgroup
Federico Menegazzo (1993)
Rendiconti del Seminario Matematico della Università di Padova
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A finiteness condition on automorphism groups
Federico Menegazzo, Derek J. S. Robinson (1987)
Rendiconti del Seminario Matematico della Università di Padova
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Automorphisms of right-angled Coxeter groups.
Gutierrez, Mauricio, Kaul, Anton (2008)
International Journal of Mathematics and Mathematical Sciences
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On the group of automorphisms of finite wreath products
Francesco Fumagalli (2006)
Rendiconti del Seminario Matematico della Università di Padova
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Groups with boundedly finite automorphism classes
Derek J. S. Robinson, James Wiegold (1984)
Rendiconti del Seminario Matematico della Università di Padova
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On automorphism groups of -adic Schottky curves
Lothar Gerritzen (1976-1977)
Groupe de travail d'analyse ultramétrique
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Automorphism groups of polycyclic-by-finite groups and arithmetic groups
Oliver Baues, Fritz Grunewald (2006)
Publications Mathématiques de l'IHÉS
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We show that the outer automorphism group of a polycyclic-by-finite group is an arithmetic group. This result follows from a detailed structural analysis of the automorphism groups of such groups. We use an extended version of the theory of the algebraic hull functor initiated by Mostow. We thus make applicable refined methods from the theory of algebraic and arithmetic groups. We also construct examples of polycyclic-by-finite groups which have an automorphism group which does not contain...