Prof. Chris Wendl forscht aktuell an den mathematischen Grundlagen der symplektischen und Kontaktgeometrie, insbesondere an der Theorie holomorpher Kurven. Seine Arbeit liefert präzise analytische Werkzeuge, um komplexe geometrische Strukturen zu klassifizieren und deren Eigenschaften rigoros zu beweisen. Diese theoretischen Fortschritte sind vor allem für die Grundlagenforschung in der Mathematik und theoretischen Physik relevant, wo sie als Bausteine für weiterführende Modelle dienen. Für die Industrie ist sein Beitrag primär indirekt: Er stärkt das Fundament der angewandten Mathematik, das in Bereichen wie Optimierung und Simulation benötigt wird, ohne dass er direkt an industriellen Anwendungen arbeitet.
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Prof. Chris Wendl
HU-FIS-Profil ↗EXC 2046: Berlin Mathematics Research Center (MATH+)
university
EXC 2046: Berlin Mathematics Research Center (MATH+)
university
EXC 2046: Berlin Mathematics Research Center (MATH+)
other
Zeitraum: 01/2016 - 12/2020 Projektleitung: Prof. Dirk Kreimer, Prof. Dr. Gavril Farkas, Prof. Dr. Jan Plefka
Förderer: Horizon 2020: ERC Consolidator Grant Zeitraum: 09/2018 - 08/2023 Projektleitung: Prof. Chris Wendl
Förderer: DFG Exzellenzstrategie Cluster Zeitraum: 01/2019 - 12/2024 Projektleitung: Prof. Dr. Caren Tischendorf, Prof. Dr. Michael Hintermüller, Prof. Dr. Max Klimm, Prof. Dr. Dörte Kreher, Prof. Chris Wendl, Prof. Dr. Bettina Rösken-Winter, Prof. Dr. rer. nat. Dr. h.c. Edda Klipp
Cambridge University Press eBooks · DOI
The introduction motivates the remainder of the book via two specific examples of theorems from the early days of symplectic topology in which intersection theory plays a prominent role. We sketch closely analogous proofs of both theorems, emphasizing the way that intersection theory is used, but point out why the second theorem (on symplectic 4-manifolds that are standard near infinity) requires a nonobvious extension of homological intersection theory to punctured holomorphic curves. We then discuss informally some of the properties this theory will need to have and what kinds of subtle issues may arise.
Commentarii Mathematici Helvetici · DOI
We derive a numerical criterion for J-holomorphic curves in 4-dimensional symplectic cobordisms to achieve transversality without any genericity assumption. This generalizes results of Hofer–Lizan–Sikorav [HLS97] and Ivashkovich–Shevchishin [IS99] to allow punctured curves with boundary that generally need not be somewhere injective or immersed. As an application, we combine this with the intersection theory of punctured holomorphic curves to prove that certain geometrically natural moduli spaces are globally smooth orbifolds, consisting generically of embedded curves, plus unbranched multiple covers that form isolated orbifold singularities.
Abstract. For contact manifolds in dimension three, the notions of weak and strong symplectic fillability and tightness are all known to be inequivalent. We extend these facts to higher dimensions: in particular, we define a natural generalization of weak fillings and prove that it is indeed weaker (at least in dimension five), while also being obstructed by all known manifestations of “overtwistedness”. We also find the first examples of contact manifolds in all dimensions that are not symplectically fillable but also cannot be called overtwisted in any reasonable sense. These depend on a higher dimensional analogue of Giroux torsion, which we define via the existence in all dimensions of exact symplectic manifolds with disconnected contact boundary.