Keefer Rowan

collaborators

3 papers

math.AP2025

Superexponential dissipation enhancement on $T^{d}$

Keefer Rowan

We construct incompressible velocity fields that exhibit faster than exponential dissipation for particular solutions to the advection-diffusion equation on $T^{d}$ . In 2D,…

math.AP2025

Turbulent and intermittent phenomena in a universal total anomalous dissipator

Elias Hess-Childs, Keefer Rowan

For all $α \in (0, 1)$ , we construct an explicit divergence-free vector field $V \in L^{\infty} ([0, 1], C^{α} (T^{2}))$ that exhibits universal anomalous (total) dissipation, acceler…

math.AP2024

Exponential scalar mixing for the 2D Navier-Stokes equations with degenerate stochastic forcing

William Cooperman, Keefer Rowan

We show exponential mixing of passive scalars advected by a solution to the stochastic Navier-Stokes equations with finitely many (e.g. four) forced modes satisfying a hypoelliptic…

Superexponential dissipation enhancement on Td

Turbulent and intermittent phenomena in a universal total anomalous dissipator

Exponential scalar mixing for the 2D Navier-Stokes equations with degenerate stochastic forcing

Superexponential dissipation enhancement on $T^{d}$