5 citations · 5 across the 2 of their papers we have counts for
3 papers
math.FA2022
The essential norm of multiplication operators on
Jürgen Voigt
We show that the formula for the essential norm of a multiplication operator on , for , also holds for . We also provide a proof for the formula which works s…
math.FA2019
On Hausdorff measure and an inequality due to Maz'ya
Hendrik Vogt, Jürgen Voigt
We give an "elementary" proof of an inequality due to Maz'ya. As a prerequisite we prove an approximation property for the Hausdorff measure. We also comment on the relations betwe…
math.FA2017★ 5 cited
Holomorphic families of forms, operators and -semigroups
Hendrik Vogt, Jürgen Voigt
If is a holomorphic function with values in the sectorial forms in a Hilbert space, then the associated operator valued function is resolvent holomorp…