On Lattices of p βLocal Formations of Fi
β
A. Ballester-Bolinches; L. A. Shemetkov
π
Article
π
2009
π
John Wiley and Sons
π
English
β 500 KB
Throughout the paper we consider only finite groups. In [l] W. GASCHUTZ introduced the notion of formation which is useful and convenient for stu.dying not only groups but also other algebraic systems (see [2]). Recall that a class 3 of groups is called a formation if it is closed under taking homo