English

Surjective and closed range differentiation operator

Functional Analysis 2025-06-18 v1

Abstract

We identify Fock-type spaces F(m,p)\mathcal{F}_{(m,p)} on which the differentiation operator DD has closed range. We prove that DD has closed range only if it is surjective, and this happens if and only if m=1m=1. Moreover, since the operator is unbounded on the classical Fock spaces, we consider the modified or the weighted composition--differentiation operator, D(u,ψ,n)f=u(f(n)ψ)D_{(u,\psi,n)} f= u\cdot\big( f^{(n)}\circ \psi\big), on these spaces and describe conditions under which the operator admits closed range, surjective, and order bounded structures.

Keywords

Cite

@article{arxiv.2506.14410,
  title  = {Surjective and closed range differentiation operator},
  author = {Tesfa Mengestie},
  journal= {arXiv preprint arXiv:2506.14410},
  year   = {2025}
}
R2 v1 2026-07-01T03:21:40.176Z