Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
General linear groups as automorphism groups. - MaRDI portal

General linear groups as automorphism groups. (Q2911134)

From MaRDI portal





scientific article; zbMATH DE number 6081574
Language Label Description Also known as
English
General linear groups as automorphism groups.
scientific article; zbMATH DE number 6081574

    Statements

    12 September 2012
    0 references
    finite \(p\)-groups
    0 references
    automorphism groups
    0 references
    general linear groups
    0 references
    0 references
    0 references
    General linear groups as automorphism groups. (English)
    0 references
    If \(G\) is the direct product of \(d\) copies of the cyclic group \(C_p\) of prime order \(p\), then \(\Aut(G)\) is isomorphic to the general linear group \(\mathrm{GL}(d,p)\).NEWLINENEWLINE The authors address the interesting converse problem: is it true that if \(G\) is a finite \(p\)-group and if \(\Aut(G)\) is isomorphic to \(\mathrm{GL}(d,p)\), then \(G\) is an elementary Abelian \(p\)-group of rank \(d\)?NEWLINENEWLINE They give an affirmative answer in their main Theorem 2.5, and then, they even go further, to study finite \(p\)-groups \(G\) with a minimal number \(d\) of generators, and with \(|\Aut(G)|=|\mathrm{GL}(d,p)|\). As expected, this weaker condition gives weaker results.
    0 references

    Identifiers

    0 references
    0 references
    0 references
    0 references