some results on baer’s theorem  
                                     
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                                    نویسنده
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                                    faramarzi salles asadollah
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                                    منبع
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                                    analytical and numerical solutions for nonlinear equations - 2017                                     - دوره : 2          - شماره : 2                    - صفحه:151       -155       
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                                    چکیده
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                                    Baer has shown that, for a group g, finiteness of g=zi(g) implies finiteness of ɣi+1(g). in this paper we will show that the converse is true provided that g=zi(g) is finitely generated. in particular, when g is a finite nilpotent group we show that |g=zi(g)| divides |ɣi+1(g)|d′ i(g), where d′i(g) =(d( g /zi(g)))i.
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                                    کلیدواژه
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                                    schur’s theorem · lower central series · upper central series
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                                    آدرس
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                                     damghan university, department of mathematics, ایران 
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                                    پست الکترونیکی
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                                    faramarzi@du.ac.ir
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