Geodesic
The invariant field of the adjoint action of the unitriangular group in the nilradical of a parabolic subalgebra
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 19, Tome 375 (2010), pp. 167-194 
V. V. Sevostynova. The invariant field of the adjoint action of the unitriangular group in the nilradical of a parabolic subalgebra. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 19, Tome 375 (2010), pp. 167-194. http://geodesic.mathdoc.fr/item/ZNSL_2010_375_a9/
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     title = {The invariant field of the adjoint action of the unitriangular group in the nilradical of a~parabolic subalgebra},
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     url = {http://geodesic.mathdoc.fr/item/ZNSL_2010_375_a9/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

In the present paper the invariant field of the adjoint action of the unitriangular group in the nilradical of any parabolic subalgebra is described. Bibl. – 7 titles.

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[6] A. N. Panov, V. V. Sevostyanova, “Regulyarnye $N$-orbity v nilradikale parabolicheskoi podalgebry”, Trudy mezhdunarodnoi konferentsii po algebre i teorii chisel, posvyaschennoi 80-letiyu V. E. Voskresenskogo, Izd-vo “Samarskii universitet”, Samara, 2007, 152–161

[7] V. V. Sevostyanova, “Pole invariantov prisoedinënnogo deistviya unitreugolnoi gruppy”, Tezisy dokladov letnei shkoly-konferentsii “Algebry Li, algebraicheskie gruppy i teoriya invariantov”, Izd-vo “Univers grupp”, Samara, 2009, 44–45