Rank reduction of string C-group representations
Autor: | Brooksbank, Peter A., Leemans, Dimitri |
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Rok vydání: | 2018 |
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Druh dokumentu: | Working Paper |
Popis: | We show that a rank reduction technique for string C-group representations first used for the symmetric groups generalizes to arbitrary settings. The technique permits us, among other things, to prove that orthogonal groups defined on $d$-dimensional modules over fields of even order greater than 2 possess string C-group representations of all ranks $3\leq r\leq d$. The broad applicability of the rank reduction technique provides fresh impetus to construct, for suitable families of groups, string C-groups of highest possible rank. It also suggests that the alternating group ${\rm Alt}(11)$---the only known group having `rank gaps'---is perhaps more unusual than previously thought. Comment: 6 pages, 1 figure |
Databáze: | arXiv |
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