3 papers
math.NA2026
Noise-induced enhancement of regime lifetimes -- A data-driven approach using deterministic trajectories
Henry Schoeller, Robin Chemnitz, Péter Koltai +2
We investigate the lifetime of dynamical regimes under the impact of noise motivated by low-dimensional models of the atmosphere. One may expect that the inclusion of noise tends t…
math.PR2025
Mixing at the Batchelor Scale for White-In-Time Flows
Robin Chemnitz, Dennis Chemnitz
We consider the mixing properties of solutions to the advection-diffusion equation of a white-in-time velocity field on the 2-dimensional torus with four forced modes. As the diffu…
math.DS2024
Characterizing nonuniform hyperbolicity by Mather-type admissibility
Robin Chemnitz, Davor Davor Dragičević
We consider linear cocycles acting on Banach spaces which satisfy the assumptions of the multiplicative ergodic theorem. A cocycle is nonuniformly hyperbolic if all Lyapunov expone…