Gelfand-Shilov spaces and operators with ultradifferential weighted symbols on non-compact manifolds

We invariantly define Gelfand-Shilov spaces on classes of non-compact manifolds with a certain ``structure at infinity’'. We also construct and study a global calculus of pseudodifferential operators on such manifolds, locally defined by symbols satisfying estimates associated with weight sequences. The operators so obtained act naturally on the previously defined Gelfand-Shilov spaces. These generalise analogous functional spaces and operators defined on Euclidean spaces.