Spectral condition, hitting times and Nash inequality

Eva Loecherbach, Dasha Loukianova, Oleg Loukianov

Let $X$ be a $\mu$-symmetric Hunt process on a LCCB space E. For an open set G $\subseteq$ E, let ${\tau }_G$ be the exit time of $X$ from G and $A^G$ be the generator of the process kille…