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On the Residual Properties of Generalized Direct Products of Groups
Lobachevskii Journal of Mathematics Pub Date : 2020-11-07 , DOI: 10.1134/s1995080220090279 E. A. Tumanova
中文翻译:
群广义广义乘积的剩余性质
更新日期:2020-11-09
Lobachevskii Journal of Mathematics Pub Date : 2020-11-07 , DOI: 10.1134/s1995080220090279 E. A. Tumanova
Abstract
Let \(\mathcal{K}\) be a class of groups closed under taking subgroups, direct products of a finite number of factors, and quotient groups. Let also \(G\) be a generalized direct product of two groups with amalgamated subgroups. We obtain necessary and sufficient conditions for \(G\) to be residually a \(\mathcal{K}\)-group. These results generalize and strengthen the known conditions for the residual finiteness of the group \(G\).
中文翻译:
群广义广义乘积的剩余性质
摘要
令\(\ mathcal {K} \)为一类在子组,有限数量因子的直接乘积和商组下封闭的组。也让\(G \)是两个具有合并子组的组的广义直接乘积。我们获得了必要的充分条件,使得\(G \)成为\(\ mathcal {K} \)-组。这些结果推广并加强了\(G \)群的剩余有限性的已知条件。