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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…
math.AP2024
Accelerated relaxation enhancing flows cause total dissipation
Keefer Rowan
We show that by "accelerating" relaxation enhancing flows, one can construct a flow that is smooth on but highly singular at so that for any posit…