Geodesic
Critical Non-Singly-Generated Totally Canonical Fitting Classes of Finite Groups
Matematičeskie zametki, Tome 83 (2008) no. 4, pp. 520-527.

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Let $\mathfrak I$ be the class of all finite simple groups and $f\colon\mathfrak I\to\{\text{Fitting classes of groups}\}$. The Fitting class $\mathfrak F=KR(f)=(G:O^{A,A'}(G)\in f(A)\text{ for any }A \in K(G))$ is referred to as a canonical Fitting class with satellite $f$. A non-singly-generated totally canonical Fitting class $\mathfrak F$ is said to be critical non-singly-generated if all proper totally canonical Fitting subclasses in $\mathfrak F$ are singly generated. In the paper, a complete description of the structure of the critical non-singly-generated totally canonical Fitting classes of finite groups is obtained.
Keywords: finite simple group, Fitting class, Fitting formation, singly generated Fitting class, local formation of finite groups.
Mots-clés : satellite 
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V. E. Egorova. Critical Non-Singly-Generated Totally Canonical Fitting Classes of Finite Groups. Matematičeskie zametki, Tome 83 (2008) no. 4, pp. 520-527. http://geodesic.mathdoc.fr/item/MZM_2008_83_4_a3/

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