Summary: Averages along cubes for not necessarily commuting m.p.t.
Abstract. We study the pointwise convergence of some weighted averages
linked to averages along cubes. We show that if (X, B, µ, Ti) are not necessarily
commuting measure preserving systems on the same finite measure space and
if fi, 1 i 6 are bounded functions then the averages
converge almost everywhere.
Let (X, B, µ, Ti), 1 i 3, be three measure preserving systems on the same