Geodesic
On overgroups of $\mathrm{E}(\mathrm{E}_6,R)$ and $\mathrm{E}(\mathrm{E}_7,R)$ in their
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 11, Tome 319 (2004), pp. 216-243 Cet article a éte moissonné depuis la source Math-Net.Ru

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The article is dedicated to description of overgroups of elementary Chevalley groups of types $\mathrm{E}_6$ and $\mathrm{E}_7$ in their minimal irreducible representations. One of the first step towards such description, namely construction of the series of perfect intermediate groups, is made. Probably all perfect intermediate groups for groups of type $\mathrm{E}_6$ are described. The hypothesis concerning the structure of perfect overgroups of type $\mathrm{E}_7$ is made. 
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     title = {On overgroups of $\mathrm{E}(\mathrm{E}_6,R)$ and $\mathrm{E}(\mathrm{E}_7,R)$ in their},
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A. Yu. Luzgarev. On overgroups of $\mathrm{E}(\mathrm{E}_6,R)$ and $\mathrm{E}(\mathrm{E}_7,R)$ in their. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 11, Tome 319 (2004), pp. 216-243. http://geodesic.mathdoc.fr/item/ZNSL_2004_319_a6/

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