Time-reversibility and nonvanishing Lévy area

Preprint, October 2022. Updated August 2023

Georg Gottwald and Ian Melbourne


Abstract

We give a complete description and clarification of the structure of the Lévy area correction to Itô/Stratonovich stochastic integrals arising as limits of time-reversible deterministic dynamical systems. In particular, we show that time-reversibility forces the Lévy area to vanish only in very specific situations that are easily classified.


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