%0 Journal Article %A Seto, Michio %T Invariant Subspaces on ${{\mathbb{T}}^{N}}$ and ${{\mathbb{R}}^{N}}$ %J Canadian mathematical bulletin %D 2004 %P 100-107 %V 47 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-011-5/ %R 10.4153/CMB-2004-011-5 %F 10_4153_CMB_2004_011_5