منابع مشابه
0 Philip Hall ’ s Problem On Non - Abelian
Philip Hall raised around 1965 the following question which is stated in the Kourovka Notebook [11, p. 88]: Is there a non-trivial group which is isomorphic with every proper extension of itself by itself? We will decompose the problem into two parts: We want to find non-commutative splitters, that are groups G 6= 1 with Ext (G,G) = 1. The class of splitters fortunately is quite large so that e...
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ژورنال
عنوان ژورنال: Physics Today
سال: 1993
ISSN: 0031-9228,1945-0699
DOI: 10.1063/1.2808856