Selected Talks

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2025 Link to heading

$\mathrm{C}$-maximal regularity and $\mathrm{C}$-admissibility for semigroups on locally convex spaces, International Workshop on Functional Analysis on the Occasion of the 70th Birthday of José Bonet, Universitat Politècnica de València, Spain.

$\mathrm{C}$-maximal regularity and $\mathrm{C}$-admissibility for semigroups on locally convex spaces, IWOTA 2024, University of Kent, United Kingdom. Slides
$\mathrm{C}$-maximal regularity and $\mathrm{C}$-admissibility for semigroups on locally convex spaces, Joint workshop of the GAMM Activity Group Applied Operator Theory & BH²KOS 2024, Hamburg University of Technology, Germany.

Final state observability estimates and cost-uniform approximate null-controllability for bi-continuous semigroups, IWOTA 2023, Helsinki, Finland.
On linearization, existence and uniqueness of preduals, BH²KS 2023, Universität Hamburg, Germany. Slides

E-Assessment in Mathematik, MathNat-Treff (BA Sachsen) Staatliche Studienakademie Dresden, Germany (online).
Weighted composition semigroups on spaces of holomorphic functions, IWOTA 2022, Kraków, Poland. Slides
On the Lumer–Phillips theorem for bi-continuous semigroups, GAMM 2022, RWTH Aachen University, Germany. Slides
Final state observability estimates and cost-uniform approximate null-controllability for bi-continuous semigroups, WOSTAP, TU Bergakademie Freiberg, Germany. Slides
Warteschlangentheorie in robotisierten Lagerhaltungssystemen, Habilitationskolloquium (Habilitation defense), Hamburg University of Technology, Germany. Slides
On equicontinuity and tightness of bi-continuous semigroups, OPSO 2022, HSE University, Russia (online). YouTube: Video

Elektronische Prüfungen in Mathematik – Ein Beispiel, Hanse-Kolloquium 2021, Ruhr-Universität Bochum, Germany (online). Slides
On equicontinuity and tightness of bi-continuous semigroups, Oberseminar Analysis, TU Dresden, Germany (online). Slides
On equicontinuity and tightness of bi-continuous semigroups, SCINDIS 2020, Bergische Universität Wuppertal, Germany (online).
High quality questions for e-assessment in mathematics, The 20th SEFI Special Interest Group in Mathematics Seminar, University of Agder, Norway (online). Slides

Vector-valued holomorphic functions in several variables, Seminar Institute of Mathematics, Hamburg University of Technology, Germany (online). Slides
Series representations in spaces of vector-valued functions via Schauder decompositions, DMV Annual Meeting 2020, TU Chemnitz, Germany (online). Slides
Case-Study: Projekt MINTFIT E-Assessment; Elektronische Prüfungen in Mathematik – Ein Beispiel, with D. Gallaun, and C. Seifert, GfHf 2020, Universität Hamburg, Germany (online). Poster

Extension of vector-valued functions and weak-strong principles, Seminar Institute of Mathematics, Hamburg University of Technology, Germany. Slides
Mobiles Testcenter für E-Prüfungen, with D. Gallaun, and C. Seifert, ePS 2019, Universität Siegen, Germany. Poster
Aufgabenkonzepte für eine bessere Qualität von E-Prüfungen, with D. Gallaun, and C. Seifert, ePS 2019, Universität Siegen, Germany. Poster
Subordination for bi-continuous semigroups, IWOTA 2019, University of Lisbon, Portugal. Slides
Digitale Prüfungen, Austauschtreffen AK Mathe Digital, Hochschule Hannover, Germany. Slides
Solvability of the inhomogeneous Cauchy-Riemann equation for weighted smooth vector-valued functions, GAMM 2019, Vienna University of Technology, Austria.
Parameter dependence of solutions of the Cauchy-Riemann equation on spaces of weighted smooth functions, BH²KS 2019, Hamburg University of Technology, Germany. Slides

Authentische Aufgaben in Klausuren – E-Prüfungen an der TUHH, Tag des Wissens, Technik und digitale Welten, Hamburg University of Technology, Germany. Slides
The approximation property for spaces of weighted differentiable functions, Function Spaces XII, Jagiellonian University, Poland. Slides
Extension of weighted vector-valued functions, Paweł Domański Memorial Conference, Będlewo Conference Center, Poland. Slides
Implementing Computer-assisted Exams in a Course on Numerical Analysis for Engineering Students, with C. Seifert, The 19th SEFI Mathematics Working Group Seminar, Politécnico de Coimbra, Portugal. Poster

Tensor products of vector-valued weighted functions, Banach Spaces and Operator Theory with Applications, Adam Mickiewicz University, Poland. Slides
Elliptic problems with unbounded coefficients, with H.H. Gaebler, coordinator M. Kunze, ISEM 20, Baronissi, Italy. Slides

$H$-Lipschitz functions, with L. Arutyunyan, and S. Ferrari, coordinator D. Pallara, ISEM 19, Casalmaggiore, Italy. Slides
Konzeption von online E-Assessment-Übungen für Mathematik-Kurse mit Elementen aus der Technischen Mechanik, 11. Ingenieurpädagogische Regionaltagung, Hamburg University of Technology, Germany. Slides

Von A nach B, Technik für Kinder. Faszination Schiff, Hamburg University of Technology, Germany. Poster
Fourier and Laplace transforms for hyperfunctions, Workshop on Functional Analysis Valencia 2015 on the occasion of the 60th birthday of José Bonet, Universitat Politècnica de València, Spain. Slides
Fractional powers and Kato’s conjecture, with I. Yaroslavtsev, coordinators M. Egert, and R. Haller-Dintelmann, ISEM 18, Blaubeuren, Germany. Notes

Vector-valued Fourier hyperfunctions, DMV-PTM 2014 Joint Meeting, Adam Mickiewicz University, Poland. Slides
Zeig mir den Weg!, with C.G. Heise, Technik für Kinder. Faszination Schiff, Hamburg University of Technology, Germany. Poster
Vektorwertige Fourier-Hyperfunktionen, Disputation (PhD defense), University of Oldenburg, Germany. Slides

Vektorwertige Fourier-Hyperfunktionen, 35. Nordwestdeutsches Funktionalanalysis Kolloquium, Heinrich-Heine-Universität Düsseldorf, Germany.

Die Laplace-Transformation und das abstrakte Cauchy-Problem in Banachräumen, Diplomvortrag (Diploma defense), Oberseminar Analysis, University of Oldenburg, Germany.