30.06.2018: Harnack inequalities for evolving hypersurfaces in the 40^th south German colloquium on differential geometry at the university of Heidelberg, Germany.
18.06.2018: Harnack inequalities for evolving hypersurfaces in the Analysis seminar at the university of Ulm, Germany.
08.03.2018: Locally constrained inverse curvature flows at the Workshop on geometric evolution equations at the university of Regensburg, Germany.
12.02.2018: Locally constrained inverse curvature flows in the Geometry and Topology seminar at the university of Toronto, Canada.
16.10.2017: Harnack inequalities for evolving hypersurfaces in the Differential geometry seminar at the university of Münster, Germany.
25.08.2017: The inverse mean curvature flow and convex free boundary hypersurfaces in the unit ball at the conference PADGE at the KU Leuven, Belgium.
19.06.2017: Harnack inequalities for evolving hypersurfaces at the conference Differential geometry at the Banach Center, Bedlewo, Poland.
06.03.2017: Harnack inequalities for evolving hypersurfaces in the Séminaire de géométrie différentielle at the Institut Élie Cartan de Lorraine, Nancy, France.
08.12.2016: The inverse mean curvature flow and convex free boundary hypersurfaces in the unit ball in the Analysis Seminar at the university of Warwick, UK.
13.10.2016: Magical mathematics - Mathematical card tricks at the XV. Freiburg Math days at the university of Freiburg, Germany. Lecture notes (in german).
17.06.2016: On the classification of ancient solutions to curvature flows on the sphere in the 38^th south German colloquium on differential geometry at the university of Mainz, Germany.
10.03.2016: Rigidity for weakly convex bodies in the sphere and applications at the Privatissimum of the group "Convex and discrete geometry" at the TU Wien, Austria.
19.11.2015: A rigidity result in the sphere and applications to fully nonlinear curvature flows in the Oberseminar Differentialgeometrie at the Leibniz Universität Hannover, Germany.
23.04.2015: Explicit rigidity for almost-umbilical hypersurfaces in the seminar "Topics in Geometric Analysis", jointly organized by the AEI, the FU Berlin and the university of Potsdam, Germany.
09.03.2015: Quantitative oscillation estimates for almost-umbilical hypersurfaces at the Journée de géométrie at the university Paris-Est Marne-la-Vallée, France.
27.11.2014: The inverse mean curvature flow perpendicular to the sphere in the group seminar on partial differential equations at the university of Constance, Germany.
24.10.2014: Gradient estimates for inverse curvature flows in hyperbolic space in the group seminar on geometric analysis at the university of Heidelberg, Germany.
07.07.2014: Rigidity results, inverse curvature flows and Alexandrov-Fenchel type inequalities in the sphere in the group seminar on geometric analysis at the university of Freiburg, Germany.
22.06.2013: Non-scale-invariant inverse curvature flows in hyperbolic space in the 36^th south German colloquium on differential geometry at the university of Constance, Germany.
Summer term 2012: Detailed presentation my Ph.D. thesis Non-scale-invariant inverse curvature flows in hyperbolic space in the group seminar on geometric analysis at the university of Heidelberg, Germany.