منابع مشابه
Finite subnormal coverings of certain solvable groups
A group is said to have a finite covering by subgroups if it is the set theoretic union of finitely many subgroups. A theorem of B. H. Neumann [11] characterizes groups with finite coverings by proper subgroups as precisely those groups with finite non-cyclic homomorphic images. R. Baer (see [13, Theorem 4.16]) proved that a group has a finite covering by abelian subgroups if and only if it is ...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 1964
ISSN: 0021-8693
DOI: 10.1016/0021-8693(64)90029-8