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This article is cited in 1 scientific paper (total in 1 paper)
On hereditary superradical formations
X. Yia, S. F. Kamornikovb a Departament of Mathematics, Zhejiang Sci-Tech University,
Hangzhou, P. R. China
b International University "MITSO", Gomel, Belarus
Abstract:
A formation $\mathfrak F$ is superradical provided that: (1) $\mathfrak F$ is a normally hereditary formation; (2) each group $G=AB$, where $A$ and $B$ are $\mathfrak F$-subnormal $\mathfrak F$-subgroups in $G$, belongs to $\mathfrak F$. We give an example of a hereditary superradical formation that is not soluble saturated. This gives a negative answer to Problem 14.99(b) in The Kourovka Notebook.
Keywords:
finite group, formation, superradical formation, soluble saturation.
Received: 31.12.2014
Citation:
X. Yi, S. F. Kamornikov, “On hereditary superradical formations”, Sibirsk. Mat. Zh., 57:2 (2016), 332–338; Siberian Math. J., 57:2 (2016), 260–264
Linking options:
https://www.mathnet.ru/eng/smj2747 https://www.mathnet.ru/eng/smj/v57/i2/p332
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Abstract page: | 231 | Full-text PDF : | 73 | References: | 48 | First page: | 10 |
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