%0 Journal Article %A Tanaka, Jun-ichi %T Invariant subspaces with no generator and a problem of H. Helson %J Annales de l'Institut Fourier %D 2015 %P 1469-1491 %V 65 %N 4 %I Association des Annales de l’institut Fourier %U http://archive.numdam.org/articles/10.5802/aif.2964/ %R 10.5802/aif.2964 %G en %F AIF_2015__65_4_1469_0