2 problems

Let $\nu$ be a probability measure on $\mathbb R$ with finite mean $m<\infty$, and let $Q_\nu$ be the stationary renewal process on $\mathbb R$ with renewal distribution $\nu$. A w…

Let $(\Omega,\mathbb P)$ be the probability space of initial configurations, and let $\Psi_t^{(L)}(N)$ denote the evolution at time $t$ in the finite-volume system of size $L$. Str…