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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Andrea Lucchini, Federico Menegazzo (1997)
Rendiconti del Seminario Matematico della Università di Padova
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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...
Federico Menegazzo (1993)
Rendiconti del Seminario Matematico della Università di Padova
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Federico Menegazzo, Derek J. S. Robinson (1987)
Rendiconti del Seminario Matematico della Università di Padova
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Gutierrez, Mauricio, Kaul, Anton (2008)
International Journal of Mathematics and Mathematical Sciences
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Francesco Fumagalli (2006)
Rendiconti del Seminario Matematico della Università di Padova
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Derek J. S. Robinson, James Wiegold (1984)
Rendiconti del Seminario Matematico della Università di Padova
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Lothar Gerritzen (1976-1977)
Groupe de travail d'analyse ultramétrique
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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...