PhD theses

• Tobias Witt – Billiards, Indices, and Holomorphic Curves (2026)
• Levin Maier – Magnetic dynamics in action: from the Hofer–Zehnder capacity to the magnetic two-component Hunter-Saxton system (2026)
• Maximilian Schmahl – Topics in persistent homology: from Morse theory for minimal surfaces to efficient computation of image persistence (2022)
• Irene Seifert – Symplectic methods for the study of periodic delay orbits (2022)
• Arnaud Maret – The symplectic geometry of surface group representations in genus zero (2022)
• Anna-Maria Vocke – Periodic bounce orbits in magnetic billiard systems (2021)
• Matthias Meiwes – Rabinowitz Floer homology, leafwise intersections and topological entropy (2018)
• Peter Weigel – Orderability and rigidity in contact geometry (2015)
• Urs Fuchs – Pseudoholomorphic curves in symplectic and contact geometry and their application in dynamics (2014)

Master's theses

• Valentin Sumser – Unterrichtseinheit zum Thema ‚Gewöhnliche Differentialgleichungen‘ (2026)
• Christian Lang – Feature-Based Visualization of Symplectic Billiards (2025)
• Johannes Leon Manstein – The Simplex Method on Manifolds (2024)
• Colin Kühner – Outer symplectic billiards on Lagrangian submanifolds (2024)
• Stefan Langenberg – Hamiltonian diffeomorphisms of even-dimensional balls and Reeb flows on odd-dimensional spheres (2024)
• Marco Kowalzik – Visualization of overtwisted disks in ℝ³ (2024)
• Irina Yushina – Global surfaces of section for the Hopf flow (2023)
• David Schultz – Stability of non-degenerate periodic solutions of vector fields (2023)
• Tobias Witt – A polyfold perspective on APS operator families and topology-changing domains (2022)
• Levin Maier – Geometry and dynamics of magnetic geodesics on the l²-sphere (2021)
• Gautam Banhatti – Phase space of billiards with and without magnetic field as symplectic quotient (2020)
• Jakob Schuhmacher – Toward the algebraic and geometric aspects of quiver representation theory (2020)
• Lukas Sauer – Character varieties and Lagrangian submanifolds (jointly with Prof. Wienhard) (2020)
• Sebastian Wintz – Existenz von Kaustiken für magnetische Billardsysteme (2020)
• Ingo Schulte – Poisson commuting functions and superheaviness in symplectic geometry (2017)
• Stefan Boshe-Plois – On homoclinic orbits in the restricted Three-Body Problem (2017)
• Alexander von Kempis – Assoziativität des Cup-Products in Morse-Kohomologie (2017)
• Irene Rücker – Fixed points of Hamiltonian diffeomorphisms on closed symplectically aspherical manifolds (2017)
• Anna-Maria Vocke – Billards im Magnetfeld (2017)
• Cedric Membrez – Lagrangian Floer Homology and the Polterovich Torus (2009)

Bachelor's theses

• Moritz Melich – Kontaktgeometrie im eingeschränkten Drei-Körper-Problem (2026)
• Paul Obernolte – Magnetic geodesics on the hyperkähler quotient Ṫ^*ℂPⁿ and their periodic lifts (2026)
• Carl Walter – A Theorem of Arnold and Jost and its application in the Kepler System (2026)
• Yannick Stodulka – Grundlagen der Kontaktgeometrie und Brieskorn-Mannigfaltigkeiten (2026)
• Nele Bundfuss – Symplektische Reduktion und vollständig integrable Systeme (2026)
• Yuting Shi – A Geometric Approach to the Geodesic Flow via Symplectic Reduction (2026)
• Gloria Garcia – On the foundations of hyperbolic chaos theory (2025)
• Benjamin Marwitz – Störungstheorie und das eingeschränkte Dreikörperproblem (2025)
• Kerim Šehi – About monotone twist maps in dynamical billiard systems (2024)
• Philipp Nazari – Numerical Inverse Magnetic Billiards (2023)
• Jannik Westermann – Periodic bounce orbits obtained by various approximation schemes (2023)
• David Seyboldt – Starrheit der Extremwerte der L_p-Norm der zentroaffinen Krümmung in zentroaffiner Parametrisierung (2022)
• Gianna Götzmann – Durch Geradenfaserungen induzierte Kontaktstrukturen (2021)
• Peter Martin – Das Jacobowitz-Hartmann-Theorem – Ein Beweis mit Hilfe des Poincaré-Birkhoff-Fixpunktsatzes (2021)
• Anna Ziegler – Global surfaces of section and the Hopf fibration (2021)
• Tom Stalljohann – On Lerman’s Cut Construction (2021)
• Fabian Lander – Polygonal symplectic billiards (2021)
• Caroline Edmaier – Sharkovsky’s Theorem: A direct proof and further observations (2019)
• Levin Maier – Reidemeister-Torsion in der Morse-Novikov-Theorie (2019)
• David Schultz – Conley-Index-Theorie und ihre Beziehung zur Morse-Theorie (2018)
• Stefan Boshe-Plois – Visual analysis of billiard dynamics simulation ensembles (B.Sc. Computer Science, jointly with Prof. Linsen) (2018)
• Gautam Banhatti – Billards im n-dimensionalen Ellipsoiden (jointly with Prof. Hermann) (2016)
• Ingo Schulte – Quasimorphismen und beschränkte Kohomologie (2015)
• Sophia Müller – Vom Billard zum Dual-Billard und eine Charakterisierung der N-Orbits eines Dual-Billard-Spiels (2015)
• Stefan Boshe-Plois – Integrable Hamiltonsche Systeme und das Arnold-Jost-Theorem (2015)
• Anna-Maria Vocke – Das Poincaré-Birkhoff-Theorem und eine Anwendung auf Billards (2014)
• Alexander von Kempis – Störungstheorie periodischer Orbits und eine Anwendung auf das Dreikörperproblem (2014)
• Sebastian Wintz – Höhere Pentagramm-Abbildungen und die KdV-Gleichung (2014)
• Sven Heydenreich – Geometrische Aspekte des Kepler-Problems (2014)
• Kevin Wiegand – Die Pentagramm-Abbildung (2014)
• Ingo Schulte – Die Rotationszahl und Denjoys Theorem (2014)