%0 Journal Article %A Alexopoulos, G. %T An Application of Homogenization Theory to Harmonic Analysis: Harnack Inequalities And Riesz Transforms on Lie Groups of Polynomial Growth %J Canadian journal of mathematics %D 1992 %P 691-727 %V 44 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-042-x/ %R 10.4153/CJM-1992-042-x %F 10_4153_CJM_1992_042_x