Almost periodic functions serve as a powerful conceptual framework in analysing differential equations whose coefficients or forcing terms exhibit recurrent behaviour over time. Rooted in the ...

Let $f$ be a continuous map of the circle into itself and let $P(f)$ denote the set of positive integers $n$ such that $f$ has a periodic point of period $n$. It is ...

We show mean ergodic theorems for vector-valued weakly almost periodic functions (in the sense of Eberlein) defined on a semigroup which take values in a locally convex topological vector space. Next, ...