Nous classifions des algèbres intègres finiment engendrées munies d’une action rationnelle d’un groupe réductif connexe avec la propriété suivante : toute sous- algèbre -invariante est finiment engendrée. De plus nous obtenons quelques résultats sur les plongements affines des espaces homogènes.
We classify all finitely generated integral algebras with a rational action of a reductive group such that any invariant subalgebra is finitely generated. Some results on affine embeddings of homogeneous spaces are also given.
@article{AIF_2003__53_2_379_0, author = {Arzhantsev, Ivan V.}, title = {Algebras with finitely generated invariant subalgebras}, journal = {Annales de l'Institut Fourier}, volume = {53}, year = {2003}, pages = {379-398}, doi = {10.5802/aif.1947}, mrnumber = {1990001}, zbl = {1099.13500}, language = {en}, url = {http://dml.mathdoc.fr/item/AIF_2003__53_2_379_0} }
Arzhantsev, Ivan V. Algebras with finitely generated invariant subalgebras. Annales de l'Institut Fourier, Tome 53 (2003) pp. 379-398. doi : 10.5802/aif.1947. http://gdmltest.u-ga.fr/item/AIF_2003__53_2_379_0/
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