Activities
I am eager to share my passion for mathematics and highly value the exchange of problems and ideas. Since 2019 I have been co-organizing conferences and workshops in my research field, both on a national and international level. Locally at Radboud University I have been organizing several seminars, some of them online. I frequently also communicate my own results in minicourses and invited lectures, and to a broader audience.
I am also co-founder and member of the Dutch Mathematial Relativity Group that organizes and coordinates regular activities in the Netherlands, and member of the GQT and NDNS+ clusters.
As a member of the PR committee, I give presentations at our Bachelor Open Days and organize outreach activities such as guest lectures at secondary schools in the Netherlands and nearby Germany.
seminar Seminars organized
Current seminars
Past seminars
- Mathematical Physics Seminar · monthly · 2021–22
- Mathematics Online Lunch Seminar · biweekly during the COVID-19 pandemic · department-wide
- Applied Analysis Seminar · biweekly · 2019–21
- Geometry, Analysis, and Physics Seminar (GAP) · for junior mathematicians in Vienna · 2014
meeting Meetings organized
Past meetings
- parallel session "Quantum spacetime and emergent structures" at the 1st Annual EAAS meeting · 7–8 April 2026 · Amsterdam Public Library, the Netherlands
- 3rd Dutch Mathematical Relativity Day · 31 March 2026 · Utrecht University, the Netherlands
- GAPsinLS – Geometry, Analysis, and Physics in Lorentzian Signature (hybrid) · proceedings topical collection in GRG · 4–9 May 2025 · BIRS–IMAG Granada, Spain
- CERS15 – 15th Central European Relativity Seminar · 22–24 January 2025 · Radboud University Nijmegen, the Netherlands
- 2nd Dutch Mathematical Relativity Day · 13 June 2024 · Utrecht University, the Netherlands
- SCGR2023 – Singularities and Curvature in General Relativity · 19–23 June 2023 · Radboud University Nijmegen, the Netherlands
- 1st Dutch Mathematical Relativity Day · 24 January 2020 · Radboud University Nijmegen, the Netherlands
- invited minisymposium "Mathematical Problems of Relativistic Physics" at the Equadiff 2019 conference · 8–12 July 2019 · Leiden, the Netherlands
- NonLinear Analysis Days · 21–22 February 2019 · Radboud University Nijmegen, the Netherlands
Other scientific involvement
- At the XII International Meeting on Lorentzian Geometry during 29 June – 3 July 2026 in Lisbon (Portugal) I am in the scientific committee.
- At the triennial GR24–Amaldi16 conference during 14–18 July 2025 in Glasgow (UK) I had the honor to chair the A2 session on mathematical developments in classical GR.
talks Invited lectures
Here I list some upcoming and recent invited lectures with abstracts abstract, slides slides, videos video etc., and older posters poster.
Minicourses
| Aug 2025 | Global Lorentzian geometry abstract Minicourse at meeting GQT Graduate School (Geometry and Quantum Theory) place De Poort, Groesbeek, the Netherlands |
| Jun 2022 | Nonsmooth spacetimes in general relativity abstract Minicourse at meeting EWM-EMS Summer School (The Cauchy Problem in General Relativity) place Institut Mittag-Leffler, Djursholm, Sweden |
| Sep 2021 | A primer on Mathematical General Relativity videopart 1 videopart 2 Minicourse in seminar Dutch Differential Topology & Geometry Seminar (hybrid) place Mathematical Institute, Utrecht University, the Netherlands |
Recent talks
Posters
Some scientific posters I made a long time ago.
media Media mentions
On a few occassions I have been interviewed and/or presented my research to broader audience. Here a selection.