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EnglishGiven a regular subgroup R of AGLn(F), one can ask if R contains nontrivial translations. A negative answer to this question was given by Liebeck, Praeger and Saxl for AGL2(p) (p a prime), AGL3(p) (p odd) and for AGL4(2). A positive answer was given by Hegedűs for AGLn(p) when n≥4 if p is odd and for n=3 or n≥5 if p=2. A first generalization to finite fields of Hegedűs’ construction was recently obtained by Catino, Colazzo and Stefanelli. In this paper we give examples of such subgroups in AGLn(F) for any n≥5 and any field F. For n<5 we provide necessary and sufficient conditions for their existence, assuming R to be unipotent if charF=0
Pellegrini, M. A., Tamburini Bellani, M. C., Regular subgroups of the affine group with no translations, <<JOURNAL OF ALGEBRA>>, 2017; 478 (15 May 2017): 410-418. [doi:10.1016/j.jalgebra.2017.01.045] [http://hdl.handle.net/10807/96869]
| Autori: | ||
| Titolo: | Regular subgroups of the affine group with no translations | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jalgebra.2017.01.045 | |
| Data di pubblicazione: | 2017 | |
| Abstract: | Given a regular subgroup R of AGLn(F), one can ask if R contains nontrivial translations. A negative answer to this question was given by Liebeck, Praeger and Saxl for AGL2(p) (p a prime), AGL3(p) (p odd) and for AGL4(2). A positive answer was given by Hegedűs for AGLn(p) when n≥4 if p is odd and for n=3 or n≥5 if p=2. A first generalization to finite fields of Hegedűs’ construction was recently obtained by Catino, Colazzo and Stefanelli. In this paper we give examples of such subgroups in AGLn(F) for any n≥5 and any field F. For n<5 we provide necessary and sufficient conditions for their existence, assuming R to be unipotent if charF=0 | |
| Lingua: | Inglese | |
| Rivista: | ||
| Citazione: | Pellegrini, M. A., Tamburini Bellani, M. C., Regular subgroups of the affine group with no translations, <<JOURNAL OF ALGEBRA>>, 2017; 478 (15 May 2017): 410-418. [doi:10.1016/j.jalgebra.2017.01.045] [http://hdl.handle.net/10807/96869] | |
| Appare nelle tipologie: | Articolo in rivista, Nota a sentenza |
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http://hdl.handle.net/10807/96869
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