The paper “Enhanced dissipation by circularly symmetric and parallel pipe flows“, co-authored by Yuanyuan Feng (Shanghai Key Laboratory of PMMP), Anna Mazzucato (Penn State University), and Camilla Nobili, has been published in Physica D (link to published version). The paper gives rigorous estimates for enhanced dissipation due to the combined effect of diffusion or hyperdiffusion and advection by an incompressible flow with circular or cylindrical symmetry in 2 and 3 space dimensions. The image below shows the front page of the published version.