On the fractional susceptibility function of piecewise expanding maps

M. Aspenberg, V. Baladi, J. Leppänen +1

We associate to a perturbation $(f_t)$ of a (stably mixing) piecewise expanding unimodal map $f_0$ a two-variable fractional susceptibility function ${\Psi }_{\varphi }(\eta ,z)$, depending also on…