Journal of Science,University of Tehran(not publish)3020040722--16802FAJournal Article19700101Let be the product of two groups and . In this paper we show that if the groups and are almost central, then is almost soluble.
We remind that N.S. Cernikov in 1981 gave a very condensed proof in a short note, but here we present a completely different approach, which will be understandable for the interested readers.Let be the product of two groups and . In this paper we show that if the groups and are almost central, then is almost soluble.
We remind that N.S. Cernikov in 1981 gave a very condensed proof in a short note, but here we present a completely different approach, which will be understandable for the interested readers.https://jos.ut.ac.ir/article_16802_e3a7f657d9350e6b8a8007bc1e106c25.pdf