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   on nilpotency of outer pointwise inner actor of the lie algebra crossed modules  
   
نویسنده allahyari asghar ,saeedi farshid
منبع journal of mathematical extension - 2020 - دوره : 14 - شماره : 1 - صفحه:19 -40
چکیده    Let l be a lie algebra crossed module and actpi(l) be a pointwise inner actor of l. in this paper, we introduce lower and upper central series of l and show that if actpi( l / zj (l) )/innact( l / zj (l) ) is the nilpotent of class k wherein zj (l) denotes the nth term of the upper central series of l , then actpi(l)/innact(l) is the nilpotent of the maximum class j + k. moreover, if dim(li /(li ∩ zj (l))) ≤ (1, 1), then actpi(l)/innact(l) is the nilpotent of the maximum class i + j − 1.
کلیدواژه lie algebra crossed module ,nilpotency ,pointwise inner ,actor
آدرس islamic azad university, mashhad branch, department of mathematics, iran, islamic azad university, mashhad branch, department of mathematics, iran
پست الکترونیکی saeedi@mshdiau.ac.ir
 
     
   
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