almost periodicity, 510.mathematics, Almost periodic functions on groups and semigroups and their generalizations (recurrent functions, distal functions, etc.); almost automorphic functions, Analysis on topological semigroups, Topological linear spaces of continuous, differentiable or analytic functions, \(L^p\)-spaces and other function spaces on groups, semigroups, etc., Article, semitopological semigroup, continuous function