Charles Batty

collaborators

2 papers

math.FA2024

Rational approximation of holomorphic semigroups revisited

Charles Batty, Alexander Gomilko, Yuri Tomilov

Using a recently developed $H$ -calculus we propose a unified approach to the study of rational approximations of holomorphic semigroups on Banach spaces. We provide unifie…

math.FA2023

Analytic Besov functional calculus for several commuting operators

Charles Batty, Alexander Gomilko, Dominik Kobos +1

This paper investigates when analytic Besov functions of $n$ variables act on the generators of $n$ commuting $C_{0}$ -semigroups on a Banach space. The theory for $n = 1$ has already b…