%0 Journal Article %A V. I. Arnol'd %T Fermat Dynamics, Matrix Arithmetics, Finite Circles, and Finite Lobachevsky Planes %J Funkcionalʹnyj analiz i ego priloženiâ %D 2004 %P 1-15 %V 38 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2004_38_1_a0/ %G ru %F FAA_2004_38_1_a0