EN
If $(n_{k})_{k≥1}$ is a strictly increasing sequence of integers, a continuous probability measure σ on the unit circle 𝕋 is said to be IP-Dirichlet with respect to $(n_{k})_{k≥1}$ if $σ̂(∑_{k∈ F}n_{k}) → 1$ as F runs over all non-empty finite subsets F of ℕ and the minimum of F tends to infinity. IP-Dirichlet measures and their connections with IP-rigid dynamical systems have recently been investigated by Aaronson, Hosseini and Lemańczyk. We simplify and generalize some of their results, using an approach involving generalized Riesz products.