Statistical stability and linear response for random hyperbolic dynamics

Davor Dragičević , Julien Sedro (1)

1 LPSM (UMR_8001) - Laboratoire de Probabilités, Statistique et Modélisation

We consider families of random products of close-by Anosov diffeomorphisms, and show that statistical stability and linear response hold for the associated families of equivariant and stationary measures. Our analysis rely on the study of the top Oseledets space of a parametrized transfer operator cocycle, as well as ad-hoc abstract perturbation statements. As an application, we show that, when the quenched central limit theorem holds, under the conditions that ensure linear response for our cocycle, the variance in the CLT depends differentiably on the parameter.

Domaines: Systèmes dynamiques [math.DS]; Probabilités [math.PR]; Analyse fonctionnelle [math.FA]

Davor Dragičević, Julien Sedro. Statistical stability and linear response for random hyperbolic dynamics. Ergodic Theory and Dynamical Systems, In press, ⟨10.1017/etds.2021.153⟩. ⟨hal-03202701⟩