Contact

I am a PhD student in Mathematics at the Université de Neuchâtel. I'm doing my PhD under the supervision of Prof. Felix Schlenk.

Email:
Johannes dot Hauber at unine dot ch
Address:
Faculté des sciences
Institut de mathématiques
Rue Emile-Argand 11
2000 Neuchâtel
Suisse

Research

I work on problems in symplectic topology. More specifically, I'm interested in embedding problems in symplectic topology and in exploring the behavior of symplectic embeddings of rational homology balls and their Lagrangian skeleta.

Articles

Quantitative symplectic topology of Katok's examples and equivariant symplectic embeddings
with Nikolas Adaloglou
The nearby Lagrangian conjecture for pinwheels
arXiv:2605.22473
with Nikolas Adaloglou and Gerard Bargalló i Gómez
Markov staircases
arXiv:2509.03224
with Nikolas Adaloglou, Joé Brendel, Jonny Evans and Felix Schlenk
Pinwheels in symplectic rational and ruled surfaces and non-squeezing of rational homology balls
arXiv:2503.16250
with Nikolas Adaloglou
Semi-Local Exotic Lagrangian Tori in Dimension Four
arXiv:2403.00408 (accepted for publication in Annales de l’institut Fourier)
with Joé Brendel and Joel Schmitz

Talks

Past Talks

AGNT seminar (Leiden, 17.11.2024)
"Local exotic tori in four dimensional symplectic manifolds"
Symplectic geometry seminar (Berlin, 07.07.2025)
"Symplectic staircases, old and new"
Plane curves and symplectic geometry (Les Marécottes, 21.09.2025)
"Uniquness of pin-ellipsoid embeddings in CP2"
Oberseminar dynamical systems (Bochum, 25.11.2025)
"Embedding questions of rational homology balls"
Séminaire de topologie, géométrie et algèbre (Nantes, 11.12.2025)
"The symplectic topology of rational homology balls"