Dr. Jonas Schnitzer


Telephone:+49 (0)761 203 - 5564
Fax:+49 (0)761 203 - 5541
Office hours:by arrangement
Address: Mathematisches Institut
Abteilung Reine Mathematik
Albert-Ludwigs-Universität Freiburg
Ernst-Zermelo-Str. 1
79104 Freiburg i. Br.


I did my undergraduate eductation at the University of Würzburg, where I recieved my B.Sc. (2010-2014, thesis supervisor: Knut Hüper) and my M.Sc. (2014-2016, thesis advisor: Stefan Waldmann). I revied my Ph.D. under the supervision of Luca Vitagliano at the University of Salerno (IT). Here you can find my thesis. You can find my full CV here.

Research Interest

I am a post doc at the differential geometry group at the mathematical institute of the university of Freiburg. My research interest is centered around Poisson geometry, understood in a broad sense, and its application to (mathematical) physics. Specifically, I work on semi-local models of poisson-related geometries, such as Jacobi bundles and Dirac structures, quantization of Poisson manifolds and the interplay of (semi-)local approximations and quantization. Moreover, I am interested in symmetries in Poisson geometry as well as reduction theory combined with quantizations.




  1. An Introduction to L-Algebras and their Homotopy Theory, with A.Kraft, arXiv
  2. The Strong Homotopy Structure of BRST Reduction, with C.Esposito, A.Kraft, arXiv
  3. The Homotopy Class of twisted L-morphisms, with A.Kraft, accepted in Homology, Homotopy and Applications arXiv


  1. Normal Forms for Dirac-Jacobi bundles and Splitting Theorems for Jacobi Structures, Math. Z. (2023) arXiv, journal
  2. Weak Dual Pairs in Dirac-Jacobi Geometry, with A.G.Tortorella, Commun. Contemp. Math., online ready (2022) arXiv, journal
  3. The Strong Homotopy Structure of Poisson Reduction, with C.Esposito, A.Kraft, J. Noncommutative Geom. 16(3), 927-966 (2022) arXiv, journal
  4. Characteristic (Fedosov-)class of a twist constructed by Drinfel’d , Lett. Math. Phys. 110, 2353–2361 (2020) arXiv, journal
  5. Weakly Regular Jacobi Structures and Generalized Contact Bundles Ann. Global Anal. Geom. 56, 221–244 (2019) arXiv, journal
  6. The local Structure of generalized contact bundles, with L.Vitagliano, Int. Math. Res. Not. (IMRN) 20 , 6871–6925 (2020) arXiv, journal
  7. A Universal Construction of Universal Deformation Formulas, Drinfel'd Twists and their Positivity, with C. Esposito, S. Waldmann, Pacific J. Math. 219 (2), 319-358 (2017) arXiv, journal