Since May 2019 I am affiliated with the Department of Applied Mathematics. Before I was a post-doc at the University of Hamburg and the University of Wuppertal, where I also held a temporary professor position (`Vertretungsprofessor') in Fall 2018/19. My mathematical origins (undergraduate studies) are at the TU Wien.
My research interests broadly center around (functional) analysis and particularly operator theory with applications in the analysis and control of pde's.
In more detail, some research foci have been semigroup theory, functional calculus, input-to-state stability of infinite-dimensional systems and funnel control.
Besides, I like optimising constants and Crouzeix's conjecture.
Expertise
Mathematics
- Admissibility
- Semigroup
- Operators
- Control System
- Dimensional System
- Parabolic
- Functional Calculus
Computer Science
- Control
Organisations
See here: here
Publications
2025
2024
Research profiles
I'm teaching several Bachelor and Master courses within the Applied Mathematics programme -- typically in the areas of analysis and control as well some service teaching. This includes courses within the Dutch-wide MasterMath programme. Furthermore, I coordinate the Math Track of the University's Honours Bachelor programme. Currently, I'm also involved in teaching within the Dutch Institute for Systems and Control.
Courses academic year 2024/2025
Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.
- 191506302 - Applied Functional Analysis
- 191508209 - Internship AM
- 191508309 - Final Project (combination)
- 191508409 - Final Project M-AM
- 191561560 - Systems and Control
- 202000980 - Smart Technology Core
- 202001281 - Signals with Information
- 202001282 - Complex Networks
- 202001379 - Bachelor's Assignment
- 202200120 - Internship ROB
- 202200143 - Analysis 1
- 202200237 - Analysis 2
- 202300017 - Analysis 3
- 202300130 - Capita Selecta Applied Mathematics
- 202300299 - Topology and its Applications
- 202400431 - Smart Technology Core
- 202400660 - Analysis 2
- 202400669 - Capita Selecta Applied Mathematics 2
- 202400778 - Enumerative Combinatorics
Courses academic year 2023/2024
- 191506302 - Applied Functional Analysis
- 191508209 - Internship AM
- 191508309 - Final Project (combination)
- 191508409 - Final Project M-AM
- 191561560 - Systems and Control
- 200900030 - Research of Math
- 201400462 - Internship S&C
- 202000980 - Smart Technology Core
- 202001280 - Finding vs. Verifying
- 202001281 - Signals with Information
- 202001355 - Systems Theory
- 202001357 - Project: Dynamical Systems
- 202001379 - Bachelor's Assignment
- 202001499 - Systems and Signals
- 202200120 - Internship ROB
- 202200237 - Analysis 2
- 202200398 - Internship AM-CS
- 202300017 - Analysis 3
- 202300130 - Capita Selecta Applied Mathematics
- 202300299 - Topology and its Applications
- 202300342 - Internship ROB/I-TECH
- 202300349 - Internship ROB/I-TECH
Currently running projects:
- Predictive Avator Control and Feedback (together with Robotics and Computer Science): PhD student: Alexander Wierzba
- Optimal Constant as Analytic Benchmarks (OCAB), NWO-funded (Open Competite), PhD student: Jens de Vries
Address

University of Twente
Zilverling (building no. 11), room 3010
Hallenweg 19
7522 NH Enschede
Netherlands
University of Twente
Zilverling 3010
P.O. Box 217
7500 AE Enschede
Netherlands