We describe subgroups of GL2A which are normalized by elementary matrices for rings A satisfying the first stable range condition, Banach algebras A, von Neumann regular rings A, and other rings A.
@article{urn:eudml:doc:41719, title = {Work of Pere Menal on normal subgroups.}, journal = {Publicacions Matem\`atiques}, volume = {36}, year = {1992}, pages = {389-400}, mrnumber = {MR1209809}, zbl = {0790.20064}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41719} }
Arlinghaus, Frank A.; Vaserstein, Leonid L. Work of Pere Menal on normal subgroups.. Publicacions Matemàtiques, Tome 36 (1992) pp. 389-400. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41719/