Surjectivity of Euler operators on temperate distributions

Abstract

Euler operators are partial differential operators of the form P(θ) where P is a polynomial and θj=xj∂/∂xj. We show that every non-trivial Euler operator is surjective on the space of temperate distributions on Rd. This is in sharp contrast to the behaviour of such operators when acting on spaces of differentiable or analytic functions.