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Minimal partition-free groups
Ricerche di Matematica ( IF 1.1 ) Pub Date : 2021-04-02 , DOI: 10.1007/s11587-021-00579-z
Afsane Bahri , Zeinab Akhlaghi , Behrooz Khosravi

Let G be a finite group. A collection \(\Pi =\{H_1,\dots ,{H_r}\}\) of subgroups of G, where \(r>1\), is said a non-trivial partition of G if every non-identity element of G belongs to one and only one \(H_i\), for some \(1\leqslant i\leqslant r\). We call a group G that does not admit any non-trivial partition a partition-free group. In this paper, we study a partition-free group G whose all proper non-cyclic subgroups admit non-trivial partitions.



中文翻译:

最少的无分区组

G为一个有限群。G子组的集合\(\ Pi = \ {H_1,\ dots,{H_r} \} \),其中\(r> 1 \)被称为G的非平凡分区,如果每个非同一性元素对于某些\(1 \ leqslant i \ leqslant r \)G的G属于一个且仅一个\(H_i \)。我们将不允许任何非重要分区的组G称为无分区组。在本文中,我们研究了一个无分区的组G,该组的所有适当的非循环子组都接受非平凡的分区。

更新日期:2021-04-02
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