Below you can find a selected list of talks I have given, and conferences and research programs I have attended and organized. I have also volunteered in some outreach activities at schools and open days etc.

#### Research seminars organized

*2020—*Joint Online Mathematical Relativity Colloquium (JoMaReC), together with Carla Cederbaum, Grigorios Fournodavlos, Edgar Gasperin (earlier: Anne Franzen), Jan Metzger and Anna Sakovich, Europe and beyond*2021—22*Mathematical Physics Seminar, together with Dejan Gajic, Teri Soultanis and Walter van Suijlekom, Radboud University Nijmegen*2020—21*Mathematics Online Lunch Seminar, together with Ross Kang and Steffen Sagave, Radboud University Nijmegen, Netherlands*2019—21*Applied Analysis Seminar, together with Gabriel Lord and Stefanie Sonner, Radboud University Nijmegen, Netherlands*2014*Geometry, Analysis and Physics Seminar (GAP), joint weekly research seminar of the University of Vienna and Vienna University of Technology, Austria (with Martin Bauer, Volker Branding, David Fajman and Jérémie Joudioux)

#### Workshops organized

- [upcoming]
*Jun 2023*Singularities and Curvature in General Relativity, Radboud University Nijmegen, Netherlands, together with A. Shadi Tahvildar-Zadeh *Jan 2020*1st Dutch Mathematical Relativity Day [poster], Radboud University Nijmegen, Netherlands, together with Andrea Fuster*Jul 2019*invited minisymposium “Mathematical Problems of Relativistic Physics” at the Equadiff 2019 conference [poster] in Leiden, Netherlands, together with A. Shadi Tahvildar-Zadeh*Feb 2019*NonLinear Analysis Days [poster], international workshop on partial differential equations at the Radboud University Nijmegen, Netherlands, together with Stefanie Sonner

#### Minicourses given

*Jun 2022*“Nonsmooth spacetimes in general relativity” [abstract]

Minicourse at EWM-EMS Summer School (The Cauchy Problem in General Relativity), Institut Mittag-Leffler, Djursholm, Sweden*Sep 2021*“A primer on Mathematical General Relativity” [abstract]

Minicourse in Dutch Differential Topology & Geometry Seminar (hybrid), Mathematical Institute, Utrecht University, Netherlands

#### Invited talks

##### 2024

- [upcoming]
*Jan 2024*“tba”

11th International Meeting on Lorentzian Geometry, Merida, Mexico

##### 2023

- [upcoming]
*May**2023*“On the formation of trapped surfaces for matter fields” [abstract]

Workshop on Singularity Formation in General Relativity and Dispersive PDEs, International Center for Mathematical Sciences, Edinburgh, United Kingdom *Apr 2023*“The ubiquity of globally hyperbolic spacetimes”

Mathematical Physics Focus Session, NWO Physics, Veldhoven, Netherlands*Feb 2023*“The many faces of globally hyperbolic spacetimes”

Mathematics Colloquium, School of Mathematics, Trinity College Dublin, Ireland

##### 2022

*Nov 2022*“On globally hyperbolic spacetimes” [abstract]

Geometric Analysis Seminar (hybrid), Department of Mathematics, University of Oregon, Eugene, OR, United States*Nov 2022*“On globally hyperbolic spacetimes” [abstract]

Geometry/Topology Seminar, Department of Mathematics, Oregon State University, Corvallis, OR, United States*Oct 2022*“A weak second Bianchi identity for naked singularities” [abstract]

Differential Equations Seminar, Department of Mathematics, University of Michigan, Ann Arbor, MI, United States*Oct 2022*“On the volume of generalized tubes” [abstract, video]

Workshop on Mathematical Relativity, Scalar Curvature and Synthetic Lorentzian Geometry (hybrid), Fields Institute for Research in Mathematical Sciences, Toronto, Canada*Jun 2022*“On limits of smooth spacetimes” [abstract, slides]

Mathematical Physics Seminar (online), University of Regensburg, Germany*Apr 2022*“On the volume of generalized tubes” [abstract]

Oberseminar Topics in General Relativity, Mathematical Institute, University of Münster, Germany*Mar 2022*“Black holes and motion”

ET@RU Seminar (online), IMAPP, Radboud University, Nijmegen, Netherlands- [postponed]
*Jan 2022*tba

Geometry & Topology Seminar, Department of Mathematical Sciences, Durham University, United Kingdom

##### 2021

- [postponed]
*Dec 2021*tba~~Topics in General Relativity Seminar, Mathematical Institute, University of Münster, Germany~~ *Nov 2021*“Spacetimes near the boundary of existence” [abstract]

Mathematics Colloquium (online), Institute of Mathematics, Universität Würzburg, Germany*Nov 2021*“Koningin Dido en het isoperimetrische probleem” (in Dutch) [slides]

Proefcolleges (trial lectures for highschool students) during Open Days, Radboud University, Nijmegen, Netherlands*Oct 2021*“The volume of generalized tubes” [abstract]

Lefschetz Seminar (online), Geometry & Geometric Analysis Group, Department of Mathematics, Clark University, Worchester, MA, United States*Sep 2021*“Matter particles, naked singularities, and a weak second Bianchi identity” [extended abstract]

Workshop (Mathematical Aspects of General Relativity) (hybrid), Oberwolfach Research Institute for Mathematics, Germany*Jul 2021*“The second Bianchi identity for spacetimes with timelike singularities” [abstract, slides]

Session AT2 (Mathematical Problems of Relativistic Physics: Classical and Quantum), 16th Marcel Grossmann Meeting (online), Italy*Jun 2021*“The second Bianchi identity for spacetimes with timelike singularities” [abstract]

Pure Analysis and PDEs Seminar (online), University College London and Imperial College London, United Kingdom*Apr 2021*“On the volume of generalized tubes” [abstract]

Analysis Seminar (online), Institute of Mathematics, University of Potsdam, Germany*Apr 2021*“On the metric structure and convergence of spacetimes” [abstract]

GQT Session, NMC 2021 Series (Dutch Mathematical Congress) (online), Netherlands*Feb 2021*“Spacetime convergence for warped products” [abstract, slides, video]

10th International Meeting on Lorentzian Geometry (online), Córdoba, Spain*Jan 2021*“The volume of tubes revisited” [abstract]

GQT Colloquium (online), Netherlands

##### 2020

*Dec 2020*“Singularity formation for perfect fluids with linear equation of state” [extended abstract]

Mini-Workshop (Relativistic Fluids at the Intersection of Mathematics and Physics) (online), Oberwolfach Research Institute for Mathematics, Germany*Jun 2020*“From initial data to black holes” [abstract]

NDNS+ Workshop (online), Twente, Netherlands*Jun 2020*“On the metric structure and curvature bounds in Lorentzian geometry”

Quantum Gravity Seminar (online), Radboud University, Nijmegen, Netherlands- [meeting postponed]
*Jun 2020*Workshop (Non-Regular Spacetime Geometry), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria - [meeting postponed]
*Jun 2020*“Spacetime convergence for warped products”~~10th International Meeting on Lorentzian Geometry, Córdoba, Spain~~ - [meeting cancelled]
*Apr 2020*“Spacetime singularities revisited” [abstract]~~GQT Session, NMC 2020 (56th Dutch Mathematical Congress), Utrecht, Netherlands~~ - [seminar cancelled]
*Apr 2020*~~Utrecht Geometry Center Seminar, Mathematical Institute, Utrecht University, Netherlands~~ - [meeting postponed]
*Mar 2020*“Singularity formation for perfect fluids with linear equation of state”~~Mini-Workshop (Relativistic Fluids at the Intersection of Mathematics and Physics), Oberwolfach Research Institute for Mathematics, Germany~~ *Jan 2020*“On the metric structure and convergence of spacetimes”

Oberseminar Dynamische Systeme, Faculty of Mathematics, Ruhr-Universität Bochum, Germany*Jan 2020*“On the metric structure and convergence of spacetimes” [abstract]

Geometry Seminar, Radboud University, Nijmegen, Netherlands

##### 2019

*Nov 2019*“Spacetime convergence for warped products” [abstract]

Research program (General Relativity, Geometry and Analysis), Institut Mittag-Leffler, Djursholm, Sweden*Oct 2019*“The Mathematics of Karen Uhlenbeck”

Desda student organization, Nijmegen, Netherlands*Sep 2019*“Black holes and other singularities”

Partial Differential Equations and Applications Seminar, Delft Institute of Applied Mathematics, TU Delft, Netherlands*Jul 2019*“Singularities in spacetimes”

Department of Mathematics, University of Münster, Germany*Jun 2019*“Singularity formation for matter models in general relativity” [abstract]

Fields Applied Mathematics Colloquium, Fields Institute, University of Toronto, Canada*May 2019*“Energy-momentum conservation for spacetimes with singularities”

Mathematical Physics Seminar, Department of Mathematics, Rutgers University, New Jersey, United States*May 2019*“Energy-momentum conservation for spacetimes with singularities” [slides, video]

Workshop (Convergence and Low Regularity in General Relativity), Simons Center for Geometry and Physics, State University of New York, Stony Brook, United States*Apr 2019*“Timelike singularities and energy conservation in general relativity” [announcement]

Applied Analysis Seminar, Mathematical Institute, University of Cologne, Germany*Apr 2019*“The second Bianchi identity for singular spacetimes” [abstract]

Geometry Seminar, Radboud University, Nijmegen, Netherlands

##### 2018

*Oct 2018*“Perfect fluids in general relativity”

Geometric Analysis Days (Intersections of Geometric Analysis and Mathematical Relativity), School of Mathematical Sciences, Queen Mary University of London, United Kingdom*Oct 2018*“Singularitäten in Raumzeiten” (Singularities in spacetimes)

University of Konstanz, Germany*Oct 2018*“Spacetimes with matter and low regularity”

Quantum Gravity Seminar, Radboud University, Nijmegen, Netherlands*Jun 2018*“On the formation of singularities in Einstein-Euler spacetimes” [abstract]

HYP2018 (17th International Conference on Hyperbolic Problems), University Park, Pennsylvania, United States*May 2018*“Geodesics revisited” [abstract]

Work in Progress Seminar, Rutgers University, New Jersey, United States*Apr 2018*“Static perfect fluids in general relativity” [abstract]

AMS Spring Eastern Sectional Meeting, Northeastern University, Boston, Massachusetts, United States*Mar 2018*“A generalized notion of ADM mass for static perfect fluids” [video]

Workshop (Mass in General Relativity), Simons Center for Geometry and Physics, State University of New York, Stony Brook, United States*Feb 2018*“The geometry of spacetimes” [abstract]

Junior Geometry Seminar, Department of Mathematics, Rutgers University, New Jersey, United States

##### 2017

*Nov 2017*“A mathematical approach to black hole formation”

Mathematical Physics Seminar, Department of Mathematics, Purdue University, Indiana, United States*Oct 2017*“Singularities in spacetime”

Postdoc Colloquium, Department of Mathematics, Rutgers University, New Jersey, United States*Aug 2017*“On the asymptotic behavior of static perfect fluids” [abstract]

Thematic program (Geometry and Relativity), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria*Mar 2017*“On the formation of singularities in general relativity”

School of Mathematics, University of Bristol, United Kingdom*Jan 2017*“Spacetimes near the boundary of existence”

Faculty of Mathematics, University of Vienna, Austria*Jan 2017*“Spacetimes near the boundary of existence”

Institute for Mathematics, Astrophysics and Particle Physics, Radboud University, Nijmegen, Netherlands

##### 2016

*Dec 2016*“Hyperboloidal evolution for nonlinear wave equations” [abstract]

Workshop (Young Women in Harmonic Analysis and PDE), Hausdorff Center for Mathematics, Bonn, Germany*Nov 2016*“Perfect fluids in general relativity”

Department of Mathematics, University of Hamburg, Germany*Aug 2016*“The global behavior of spacetimes”

School of Mathematical Sciences, Dublin City University, Ireland*Jan 2016*“Langzeitverhalten von nichtlinearen Wellen” (Longtime behavior of nonlinear waves)

Institute of Mathematics, University of Würzburg, Germany

##### 2015

*Sep 2015*“Weak metrics in general relativity and beyond”

Department of Mathematics, University of Tübingen, Germany*Jun 2015*“On the formation of trapped surfaces in Einstein–Euler spacetimes” [abstract, slides]

Workshop (Longtime Behaviour of Nonlinear Waves), Bielefeld University, Germany*May 2015*“Geodesic incompleteness in general relativity”

Analysis Seminar, Mathematical Institute, University of Bonn, Germany*Mar 2015*“On the formation of trapped surfaces in Einstein-Euler spacetimes” [abstract]

Gravitational Physics Seminar, Faculty of Physics, University of Vienna, Austria

##### 2014

*Jul 2014*“General relativity and semi-Riemannian geometry of low regularity”

5th Northern German Differential Geometry Day, Leibniz Universität Hannover, Germany*Jun 2014*“Evolution problems in general relativity”

Department of Mathematics, Friedrich-Alexander-University Erlangen-Nürnberg, Germany*Jun 2014*“Niedrigreguläre Riemannmetriken” (Riemannian metrics of low regularity)

Institute for Mathematics, Goethe University Frankfurt am Main, Germany*May 2014*“Geometric bounds for vacuum spacetimes” [abstract]

Oberseminar Differentialgeometrie, Leibniz Universität Hannover, Germany*May 2014*“Riemannian manifolds meet metric (measure) spaces”

University of Warwick, Coventry, United Kingdom*Feb 2014*“Self-gravitating collapse of compressible matter under spherical symmetry” [abstract, slides]

CERS 4 (4th Central European Relativity Seminar), Erwin Schrödinger Institute Vienna, Austria*Jan 2014*“Analytic and geometric aspects of spacetimes of low regularity” [abstract, slides]

PhD thesis defense, Faculty of Mathematics, University of Vienna and via videoconference at the Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie (Paris 6)

##### 2009*—*2013

*Oct 2013*“Global aspects of mathematical general relativity”

Mathematics colloquium, University of Iceland, Reykjavík, Iceland*Sep 2013*“Riemannian metrics of low regularity” [abstract, slides]

School in Geometric Analysis (Geometric Analysis on Riemannian and Singular Metric Spaces), Lake Como School of Advanced Studies, Como, Italy*Jun 2013*“Analytic and geometric aspects of general relativity”Department of Mathematics, University of Münster, Germany*Feb 2013*“Energy inequalities under one-sided curvature bounds” [abstract, slides]

CERS 3 (3rd Central European Relativity Seminar), Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Golm, Germany*Dec 2012*“On the mathematical framework in general relativity” [abstract, slides]

Colloquium for PhD students, Faculty of Mathematics, University of Vienna, Austria*Sep 2009*“Smooth regularization parameter in special Colombeau algebras” [abstract, slides]

GF 2009 (International Conference on Generalized Functions), University of Vienna, Austria

#### Poster presentations

*Oct 2015*“Hyperboloidal evolution for the cubic wave equation: Asymptotic behavior of global solutions” [poster]

Panorama of Mathematics, Hausdorff Center for Mathematics, Bonn, Germany*Nov 2012*“Weyl fields on one-sided bounded spacetimes” [poster]

“For Women in Science” award ceremony of the Austrian Academy of Sciences, Vienna, Austria*Apr 2011*“Tectonic geomorphological investigations of antiforms using differential geometry (Permam Anticline, Northern Iraq)” [abstract, poster]

EGU 2011 (European Geosciences Union General Assembly), Vienna, Austria

#### Attended conferences, workshops, summer/winter schools etc.

##### 2019*—*

- [upcoming]
*May—June*2023 Workshop on Singularity Formation in General Relativity and dispersive PDEs, International Center for Mathematical Sciences, Edinburgh, United Kingdom *Apr 2023*NWO Physics, Veldhoven, Netherlands*Mar 2023*Workshop (Random Geometry in Math and Physics), Radboud University Nijmegen, Netherlands- [cancelled attendance]
*Mar 2023*Workshop (Non-Regular Spacetime Geometry), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria *Jul—Dec 2022*Thematic Program (Nonsmooth Riemannian and Lorentzian Geometry), Fields Institute, Toronto, Canada*Nov 2022*Pacific Northwest Geometry Seminar (PNGS), Seattle University, Washington, United States*Jul 2022*Virtual ICM 2022*Jun 2022*Summer School on the Cauchy Problem in General Relativity, Institut Mittag-Leffler, Djursholm, Sweden*Apr 2022*Workshop at the Interface of Mathematical Relativity and Astrophysics (hybrid), Banff International Research Station, Alberta, Canada*Mar—May 2022*General Relativity Program (online), Center of Mathematical Sciences and Applications, Harvard University, MA, United States*Jan—Mar 2022*Thematic Program (Mathematical Perspectives of Gravitation beyond the Vacuum Regime), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria*Aug—Sep 2021*Workshop on Mathematical Aspects of General Relativity (hybrid), Oberwolfach Research Institute for Mathematics, Germany*Jul 2021*Workshop on Null Distance (online), United States*Jul 2021*16th Marcel Grossmann Meeting (online), Italy*Jun 2021*Workshop (Singularity theorems, causality, and all that – A tribute to Roger Penrose) (online), Austria, Italy and United States- [meeting cancelled]
*May 2021*Workshop (Non-Regular Spacetime Geometry), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria *Feb 2021*Workshop (Mathematical Perspectives of Gravitation beyond the Vacuum Regime) (online), Erwin Schrödinger Institute for Mathematics and Physics, Vienna, Austria*Feb 2021*CERS 11 (11th Central European Relativity Seminar), Vienna (online), Austria- [program postponed]
*Feb—Mar 2021*Thematic Program (Mathematical Perspectives of Gravitation beyond the Vacuum Regime), Erwin Schrödinger Institute for Mathematics and Physics, Vienna, Austria - [rescheduled from Jun 2020]
*Feb 2021*10th International Meeting on Lorentzian Geometry (online), Córdoba, Spain - [rescheduled from Mar 2020]
*Dec 2020*Mini-Workshop (Relativistic Fluids at the Intersection of Mathematics and Physics), Oberwolfach Research Institute for Mathematics, Germany *2020*Virtual Workshop on Ricci and Scalar Curvature*Jun 2020*NDNS+ Workshop (online), Twente, Netherlands- [meeting postponed]
*Jun 2020*Workshop (Non-Regular Spacetime Geometry), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria - [meeting postponed]
*Jun 2020*10th International Meeting on Lorentzian Geometry, Córdoba, Spain - [meeting cancelled]
*Apr 2020*NMC 2020 (56th Dutch Mathematical Congress), Utrecht, Netherlands - [meeting postponed]
*Mar 2020*Mini-Workshop (Relativistic Fluids at the Intersection of Mathematics and Physics), Oberwolfach Research Institute for Mathematics, Germany *Jan 2020*Physics@Veldhoven 2020, Netherlands*Nov—Dec 2019*Research program (General Relativity, Geometry and Analysis), Institut Mittag-Leffler, Djursholm, Sweden*Jul 2019*Equadiff 2019 conference in Leiden, Netherlands*Jun 2019*Workshop (Women in Analysis), Banff International Research Station, Alberta, Canada*Apr 2019*Workshop (Convergence and Low Regularity in General Relativity), Simons Center for Geometry and Physics, State University of New York, Stony Brook, United States

##### 2014*—*2018

*Oct 2018*Geometric Analysis Days (Intersections of Geometric Analysis and Mathematical Relativity), School of Mathematical Sciences, Queen Mary University of London, United Kingdom*Jun 2018*HYP2018 (17th International Conference on Hyperbolic Problems), University Park, Pennsylvania, United States*Apr 2018*AMS Spring Eastern Sectional Meeting, Northeastern University, Boston, Massachusetts, United States*Mar 2018*Workshop (Mass in General Relativity), Simons Center for Geometry and Physics, State University of New York, Stony Brook, United States*Jul—Aug 2017*Thematic program (Geometry and Relativity), Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria*Apr 2017*Workshop (Young Women in Geometry), Max Planck Institute for Mathematics, Bonn, Germany*Feb 2017*Workshop (Geometric Transport Equations in General Relativity), Erwin Schrödinger Institute for Mathematics and Physics, Vienna, Austria*Dec 2016*Workshop (Young Women in Harmonic Analysis and Partial Differential Equations), Hausdorff Center for Mathematics, University of Bonn, Germany*Jul 2016*School in Geometric Analysis (Geometric Analysis on Riemannian and singular metric measure spaces), Lake Como School of Advanced Studies, Como, Italy*Mar 2016*Workshop (Singularity formation and long-time behavior in dispersive partial differential equations), University of Bonn, Germany*Sep*Mathematical General Relativity, trimester program at the Institut Henri Poincaré, Paris, France*—*Dec 2015*Oct 2015*Panorama of Mathematics (A conference outlining new trends, results, and challenges in mathematical sciences), Hausdorff Center for Mathematics, Bonn, Germany*Jun 2015*Workshop (Longtime Behaviour of Nonlinear Waves), Bielefeld University, Germany*Jul*ESI-EMS-IAMP Summer School on Mathematical Relativity, Erwin Schrödinger Institute, Vienna, Austria*—*Aug 2014*Jul 2014*5th Northern German Differential Geometry Day, Leibniz Universität Hannover, Germany*Feb 2014*CERS 4 (4th Central European Relativity Seminar), Erwin Schrödinger Institute, Vienna, Austria

##### 2009*—*2013

*Sep*School in Geometric Analysis (Geometric Analysis on Riemannian and Singular Metric Spaces), Lake Como School of Advanced Studies, Como, Italy*—*Oct 2013*Sep 2013*HLF 2013 (1st Heidelberg Laureate Forum), Heidelberg, Germany*Feb 2013*CERS 3 (3rd Central European Relativity Seminar), Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Golm, Germany*Dec 2012*ESI Workshop (Dynamics of General Relativity), Erwin Schrödinger Institute, Vienna, Austria*Nov—Dec 2011*Cours d’École Doctorale (Mathematical Problems in General Relativity, by R. Schoen), Institut Henri Poincaré, Paris, France*Aug 2011*ESI Summer School (Mathematical Physics), Erwin Schrödinger Institute, Vienna, Austria*Apr 2011*EGU 2011 (European Geosciences Union General Assembly), Vienna, Austria*Jan 2011*UK—Japan Winter School (New Methods in Geometry), King’s College London, United Kingdom*Aug*GF 2009 (International Conference on Generalized Functions), University of Vienna, Austria*—*Sep 2009*Feb 2009*Workshop (Generalized Functions and Partial Differential Equations), University of Innsbruck, Austria

#### Research stays

##### 2019*—*

*4 Sep — 20 Nov 2022*Fields Institute, Toronto, Canada- [cancelled]
*15 Jul — 15 Aug 2020*Department of Mathematics, Rutgers University, United States *11 Nov*Institut Mittag-Leffler, Djursholm, Sweden*— 12 De*c 2019*15—21 Jun 2019*Department of Mathematics, University of Toronto, Canada*4—11**May 2019*Department of Mathematics, Rutgers University, United States

##### 2014*—*2017

*16 Jul — 19 Aug 2017*Erwin Schrödinger International Institute for Mathematics and Physics, Vienna, Austria*20—31 Jul 2015*Faculty of Mathematics, University of Vienna, Austria*17 Mar — 16 Jul 2014*Riemann Center for Geometry and Physics, Leibniz Universität Hannover, Germany*19*—*21 May 2014*Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Golm, Germany

##### 2008*—*2013

*21*—*26 Oct 2013*Mathematics Division, Faculty of Physical Sciences, University of Iceland, Iceland*Jun*—*Aug 2013*Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie (Paris 6), France*Sep 2011*—*Jul 2012*Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie (Paris 6), France*27*—*31 Dec 2010*Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie (Paris 6), France*16*—*27 Aug 2010*Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie (Paris 6), France*Jul*—*Sep 2008*Seminar for Applied Mathematics, ETH Zürich, Switzerland