%0 Journal Article %A Izuchi, Keiji %A Matsugu, Yasuo %T A φ-Invariant Subspaces on the Torus %J Canadian journal of mathematics %D 1998 %P 99-133 %V 50 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1998-006-0/ %R 10.4153/CJM-1998-006-0 %F 10_4153_CJM_1998_006_0