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math.DS2025
A Harris theorem for enhanced dissipation, and an example of Pierrehumbert
William Cooperman, Gautam Iyer, Seungjae Son
In many situations, the combined effect of advection and diffusion greatly increases the rate of convergence to equilibrium -- a phenomenon known as enhanced dissipation. Here we s…
math.DS2024
Residual Diffusivity for Noisy Bernoulli Maps
Gautam Iyer, James Nolen
Consider a discrete time Markov process on that makes a deterministic jump prescribed by a map , and then takes…