If you have questions, please write me an Email and you will get an online appointment.

I am co-organizer of the conference in honor of Ernst Kuwert' 60th birthday, see this link here.

It takes place in Freiburg im Breigau, in the week of November 29 to December 03, 2021.

In the summer term 2021, our AG Seminar takes place at Tuesdays, 11.45am to 12.45pm.

Here is the list of dates and speakers.

• 27.4. tba .
• 4.5. Daniel Schindler (University of Potsdam)
• 18.5. Ömer Genc
• 1.6. Ben Lambert (University of Derby)
• 15.6. Fabian Rupp (University of Ulm)
• 29.6. Melanie Rothe
• 6.7. Ba-Duong Chu
• 13.7. Florian Martin

Summer term 19: Bachelor seminar about minimal surfaces

Winter term 19/20: Differential Geometry (= Curves and Surfaces)

Winter term 20/21: AG Seminar

Summer term 21: Lecture Mean Curvature Flow and AG Seminar

Winter term 21/22: Master Seminar and AG Seminar

Lukas Dillenkofer: „The Plateau Problem“ (Bachelorthesis 2021)

Olena Kozymka: „Zwei Anwendungen des Satzes von Stokes: Der Satz von Radó und der Satz vom gekämmten Igel“ (Bachelorthesis 2020)

Daniel Kunz: „Conformal Maps and Applications to the Theory of Minimal surfaces“ (Bachelorthesis 2020)

Elena Christine Tibke: „Die Enneper-Weierstraß Darstellung von Minimalflächen und der Uniformisierungssatz“ (Bachelorthesis 2020)

I am interested in questions related to Geometric variational problems, for example minimal surfaces theory or Willmore surfaces.

My articles:

• (with P. Breuning and J. Hirsch) Existence of minimizing Willmore Klein bottles in Euclidean four-space, Geom. Topol. 21(2017), no.4, 2485-2526, available on Arxiv here.
• (with J. Hirsch) A note on Willmore minimizing Klein bottles in Euclidean space, Adv. Math. 319(2017), 67-75, available on Arxiv here.
• Singularities of the area preserving curve shortening flow with a Neumann free boundary condition, Math. Ann. 371(2018), no.3-4, 1429-1448, available on Arxiv here.
• The area preserving curve shortening flow with Neumann free boundary conditions, PhD Thesis, University of Freiburg, Faculty of Mathematics and Physics, 155p., 2014.

My preprints:

• (with J. Hirsch) On the Morse Index of Willmore Spheres, available on Arxiv here. Accepted in JDG.
• (with J. Giesselmann) A posteriori error estimates for wave maps into spheres, available on Arxiv here.

I am member of the SPP 2026 „Geometry at infinity“, see SPP2026.