Finite groups with conjugacy classes number one greater than its same order classes number

dc.creatorDu, Xianglin
dc.creatorShi, Wujie
dc.date2005-09-16
dc.date.accessioned2026-07-07T05:23:16Z
dc.date.available2026-07-07T05:23:16Z
dc.descriptionLet $k(G)$ be the number of conjugacy classes of finite groups $G$ and $π_e(G)$ be the set of the orders of elements in $G$. Then there exists a non-negative integer $k$ such that $k(G)=|π_e(G)|+k$. We call such groups to be $co(k)$ groups. This paper classifies all finite $co(1)$ groups. They are isomorphic to one of the following groups: $A_5, L_2(7), S_5, Z_3, Z_4, S_4, A_4$, $D_{10}, Hol(Z_5)$, or $Z_3\rtimes Z_4$.
dc.description15 pages
dc.identifierhttps://arxiv.org/abs/math/0509376
dc.identifierhttp://arxiv.org/abs/math/0509376
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/76367
dc.subjectGroup Theory
dc.subject20D60, 20D05, 20D10
dc.titleFinite groups with conjugacy classes number one greater than its same order classes number
dc.typetext

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