104 citations · 288 across the 40 of their papers we have counts for
4 papers · 2 filters
Functional calculus estimates for Tadmor-Ritt operators
Felix Schwenninger
We show -functional calculus estimates for Tadmor-Ritt operators (also known as Ritt operators), which generalize and improve results by Vitse. These estimates are in c…
A law for cosine families with to
Felix L. Schwenninger, Hans Zwart
For being a cosine family on a unital normed algebra, we show that the estimate implies that …
Functional calculus for -semigroups using infinite-dimensional systems theory
Felix Schwenninger, Hans Zwart
In this short note we use ideas from systems theory to define a functional calculus for infinitesimal generators of strongly continuous semigroups on a Hilbert space. Among others,…
On measuring unboundedness of the -calculus for generators of analytic semigroups
Felix Schwenninger
We investigate the boundedness of the -calculus by estimating the bound of the mapping : $f\mapsto f(A)T(\varepsilo…