[I] Invited plenary talks and colloquia

[C] Contributed conference talks

[S] Seminar talks

[O] Other presentations, outreach

- [S] 23/05/2019 University of Potdam, Germany

Topics in Geometric Analyis

A flow approach to Bartnik’s static metric extension conjecture in axisymmetry -
[C] 14/02/2019 Jagiellonian University Kraków, Poland

9th Central European Relativity Seminar

A geometric flow approach to the static metric extension problem for the Einstein equations in axisymmetry - [I] 06/08/2018 Mathematisches Forschungsinstitut Oberwolfach, Germany

Mathematical General Relativity

Critical phenomena in the general spherically symmetric Einstein-Yang-Mills system - [I] 24/04/2017 Physikzentrum Bad Honnef, Germany

Do black holes exist? The physics and philosophy of black holes

How a black hole forms – gravitational collapse - [I] 22/02/2017 Erwin Schrödinger Institute, University of Vienna, Austria

Workshop: Geometric transport equations in general relativity

Einstein-Vlasov evolution in axisymmetry - [I] 08/02/2017 University of Potsdam, Germany

Colloquium of the Institute for Mathematics

Einstein equations and their numerical solution: evolution on hyperboloidal hypersurfaces - [S] 08/07/2016 University of Regensburg, Germany

Advanced Seminar in Analysis

Hyperboloidal evolution of the Einstein equations - [I] 18/05/2016 University of Tübingen, Germany

Static metrics and Bartnik’s quasi-local mass conjecture

Numerical approaches to static metric extensions and gluing - [S] 05/11/2015 University of Tübingen, Germany

Seminar Geometric Analysis and Mathematical Relativity

Applications of numerical methods to Einstein’s and other geometric evolution equations - [S] 04/09/2015 Chalmers Technical University, Gothenburg, Sweden

Kinetic and Mathematical Physics Seminar

Numerical approaches to global evolution of the Einstein equations - [I] 30/03/2015 Gollwitz Castle, Brandenburg, Germany

Junior Scientist Andrejewski Days: 100 Years of General Relativity

Putting spacetime on a computer: numerical relativity - [C] 19/03/2015 Technical University of Berlin, Germany

Annual Meeting of the German Physical Society, Gravitation and Relativity Group

Critical behaviour in the Einstein-Yang-Mills system - [I] 30/01/2015 University of Tübingen, Germany

Mathematical Colloquium

Numerical approaches to global evolution of the Einstein equations - [E] 30/10/2014 University of Bayreuth, Germany

Mathematical Colloquium

Numerical approaches to general relativity and geometric analysis - [S] 09/10/2014 Max Planck Institut for Astronomy, Heidelberg, Germany

Galaxies and Cosmology Seminar

Cosmic censorship in gravitational collapse - [S] 16/09/2014 University of Kiel, Germany

Practical Mathematics Seminar

Numerical approaches to general relativity and geometric analysis - [O] 15/07/2014 Free University Berlin, Germany

Habilitation talk

The infinite uses of finite fields - [I] 05/06/2014 University of Oldenburg, Germany

Theoretical Physics Colloquium

Critical phenomena in gravitational collapse - [S] 09/04/2014 University of Vienna, Austria

Gravitational Physics Seminar

Hyperboloidal evolution of the Einstein equations - [C] 20/03/2014 Humboldt University Berlin, Germany

Annual Meeting of the German Physical Society, Gravitation and Relativity Group

Einstein-matter dynamics with a hyperboloidal evolution code - [I] 24/02/2014 Oppurg Castle, Thuringia, Germany

Annual Meeting of the Research Training Group 1523 Quantum and Gravitational Fields (University of Jena)

Cosmic censorship in gravitational collapse - [S] 29/11/2013 Center for Applied Space Technology and Microgravity (ZARM), University of Bremen, Germany

Bremen-Oldenburg Relativity Seminar

Formation and decay of coloured black holes and solitons in the large - [C] 09/07/2013 University of Warsaw, Poland

20th International Conference on General Relativity and Gravitation

Hyperboloidal evolution of the Einstein-Yang-Mills system - [S] 26/06/2013 Albert Einstein Institute, Potsdam, Germany

Institute Seminar

Formation and decay of coloured black holes in the large - [I] 01/03/2013 University of Jena

Annual Meeting of the German Physical Society, Gravitation and Relativity Group

Numerical evolution of the Einstein equations to future null infinity - [S] 05/12/2012 Albert Einstein Institute, Potsdam, Germany

Seminar Geometric Analysis and Gravitation

Hyperboloidal Einstein-matter evolution and tails for scalar and Yang-Mills fields - [S] 27/11/2012 Free University Berlin, Germany

Advanced Seminar Analysis, Geometry und Physics

Hyperboloidal Einstein-matter evolution and tails for scalar and Yang-Mills fields - [S] 19/10/2012 Cardiff University, UK

Gravitational Physics Seminar

Hyperboloidal Einstein-matter evolution and tails for scalar and Yang-Mills fields - [I] 13/10/2012 Oppurg Castle, Thuringia, Germany

Numerical and Mathematical Relativity

Hyperboloidal Einstein-matter evolution and tails for scalar and Yang-Mills fields - [I] 19/09/2012 Lindow, Brandenburg, Germany

Annual Meeting of the International Max Planck Research School “Geometric Analysis, Gravitation and String Theory”

Numerical relativity beyond astrophysics - [C] 25/06/2012 University of Prague, Czech Republic

Relativity and Gravitation: 100 Years after Einstein in Prague

Evolution of the Einstein equations to future null infinity - [S] 07/06/2012 Albert Einstein Institute, Potsdam, Germany

Wave Seminar

Hyperboloidal evolution of the Einstein equations with matter - [I] 31/05/2012 Free University Berlin, Germany

Mathematical Colloquium

The interplay between analytical and numerical methods in general relativity - [I] 28/11/2011 Oberwolfach Research Institute for Mathematics, Germany

Geometric Partial Differential Equations: Theory, Numerics and Applications

Evolution of the Einstein equations on constant mean curvature surfaces - [I] 11/07/2011 International Centre for Mathematical Sciences, Edinburgh, UK

Numerical Relativity Beyond Astrophysics

Vacuum axisymmetric gravitational collapse - [I] 18/02/2010 Erwin Schrödinger Institute, Vienna, Austria

Quantitative Studies of Nonlinear Wave Phenomena

Axisymmetric constrained evolution to future null infinity - [S] 25/01/2010 University of Amsterdam, the Netherlands

String Theory Seminar

The state of the art in numerical relativity - [S] 17/06/2009 University of Jena, Germany

Gravitational Theory Seminar

Constrained evolution to future null infinity - [S] 17/06/2009 University of Jena, Germany

Seminar of the Research Training Group 1523 Quantum and Gravitational Fields

Numerically tractable formulations of the Einstein equations - [S] 20/05/2009 University of Cambridge, UK

High Energy Physics and General Relativity Seminar

Regularity of the Einstein equations at future null infinity - [C] 15/04/2009 Cardiff University, UK

BritGrav 9

Regularity of the Einstein equations at future null infinity - [S] 19/03/2009 University of Southampton, UK

General Relativity Seminar

Regularity of the Einstein equations at future null infinity - [C] 19/09/2008 University of Salamanca, Spain

Spanish Relativity Meeting (Encuentros Relativistas Españoles) 2008

Implementation of absorbing boundary conditions for the Einstein equations - [C] 16/09/2008 University of Salamanca, Spain

Spanish Relativity Meeting (Encuentros Relativistas Españoles) 2008

Gravitational collapse of prolate Brill waves - [S] 17/06/2008 Albert Einstein Institute, Potsdam, Germany

Numerical Relativity Seminar

Constrained evolution in axisymmetry and the gravitational collapse of prolate Brill waves - [C] 19/03/2008 University of York, UK

BritGrav 8

Constrained evolution in axisymmetry and the gravitational collapse of prolate Brill waves - [S] 12/03/2008 Queen Mary, University of London, UK

Relativity and Cosmology Seminar

Constrained evolution in axisymmetry and the gravitational collapse of prolate Brill waves - [O] 17/12/2007 Städtisches Gymnasium Petershagen, Germany

Presentation for final-year (Abitur) students

Spacetime on a Computer: Numerical Relativity - [C] 17/03/2007 California Institute of Technology, Pasadena, USA

23rd Pacific Coast Gravity Meeting

Outer boundary conditions put to the test - [I] 21/11/2006 Institut Henri Poincaré, Paris, France

From Geometry to Numerics

Outer boundary conditions for the generalized harmonic Einstein equations: stability and accuracy - [I] 25/10/2006 California State University, Northridge, USA

Mathematical Colloquium

Boundary conditions for the Einstein field equations: stability and accuracy - [C] 21/07/2006 Albert Einstein Institute, Potsdam, Germany

New Frontiers in Numerical Relativity

Well-posed radiation-controlling boundary conditions for the harmonic Einstein equations - [O] 17/03/2006 California Institute of Technology, Pasadena, USA

Astronomy Kiosk

Flat space is (un)stable - [C] 04/03/2006 University of California, Santa Barbara, USA

22nd Pacific Coast Gravity Meeting

Curing the rotational instability in the generalized harmonic evolution system - [S] 25/05/2005 Albert Einstein Institute, Potsdam, Germany

Geometrical Analysis and Gravitation Seminar

Axisymmetric numerical relativity - [S] 13/05/2005 University of Cambridge, UK

General Relativity Lunch Seminar

Axisymmetric numerical relativity - [S] 12/05/2005 University of Southampton, UK

General Relativity Seminar

Axisymmetric numerical relativity - [S] 17/01/2005 Albert Einstein Institute, Potsdam, Germany

Numerical Relativity Seminar

Some progress on evolution formalisms for axisymmetric numerical relativity - [C] 22/07/2004 Dublin, Ireland

17th International Conference on General Relativity and Gravitation

A strongly hyperbolic regular system for axisymmetric numerical relativity - [S] 15/08/2004 Albert Einstein Institute, Potsdam, Germany

Numerical Relativity Seminar

Evolution formalisms for axisymmetric numerical relativity - [I] 17/07/2004 University of Heidelberg, Germany

Otto Haxel Prize Talk

Spacetime on a Computer: Numerical Relativity - [O] 02/03/2004 Trinity College Cambridge, UK

Science Society Seminar

Putting spacetime on a computer: numerical relativity - [O] 22/03/2003 University of Cambridge, UK

Maths Open Day