%0 Journal Article %A G. B. Podkolzin %T An infinitesimal object of the hypercomplex system, generated by double cosets, and nonlinear differential equations %J Funkcionalʹnyj analiz i ego priloženiâ %D 1991 %P 91-93 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1991_25_1_a18/ %G ru %F FAA_1991_25_1_a18