Contact
Webpage Felix Günther (for updates starting on September 22nd, please see my new webpage at IHÉS)
Address Institut des Hautes Études Scientifiques Felix Günther
35 route de Chartres
91440 Bures-sur-Yvette
France
Office 0S7
E-mail This e-mail address is being protected from spam bots, you need JavaScript enabled to view it.
Telephone +33 - 1609 - 26692
Fax +49 - 3222 - 6446142

Fields of interest
Discrete differential geometry Discrete complex analysis, discrete Riemann surfaces, discrete conformal maps, integrable systems
Differential geometry Isometry groups of Lorentzian manifolds, homogeneous Lorentz spaces
Geometry Hyperbolic geometry, circle patterns and circle packings

Academic Vitae
09/2014 – 01/2015 Postdoc at Institut des Hautes Études Scientifiques in Bures-sur-Yvette
2014–2016 Laureate of the European Post-Doctoral Institute
Future stays:
Isaac Newton Institute for Mathematical Sciences in Cambridge (01/2015 – 07/2015)
Erwin Schrödinger International Institute for Mathematical Physics in Vienna (07/2015 – 12/2015)
Institut des Hautes Études Scientifiques in Bures-sur-Yvette (01/2016 – 05/2016)
Max Planck Institute for Mathematics in Bonn (06/2016 – 08/2016)
09/2014 PhD in Mathematics at Technische Universität Berlin
Thesis: Discrete Riemann Surfaces and Integrable Systems
Advisors: Prof. Dr. Alexander I. Bobenko and Dr. Dmitry Chelkak
06/2014 Research stay (one week) at University of Geneve
Invited by Prof. Dr. Stanislav Smirnov
11/2011 – 12/2011 Research stay (two weeks) at Hausdorff Research Institute for Mathematics
Junior Hausdorff Trimester Program in Differential Geometry
10/2011 – 09/2014 Doctoral student in Mathematics at Technische Universität Berlin
Supervisor: Prof. Dr. Alexander I. Bobenko
Topic: Discrete complex analysis
Fellow of Deutsche Telekom Stiftung and German National Academic Foundation
08/2011 Diploma in Mathematics at Humboldt-Universität zu Berlin
Supervisor: Prof. Dr. Helga Baum
Thesis: Isometry groups of Lorentzian manifolds of finite volume and The local geometry of compact homogeneous Lorentz spaces
Award for the Diploma thesis by German Mathematical Society
05/2010 – 04/2011 Student research assistant at Technische Universität Berlin
Supervisor: Prof. Dr. Alexander I. Bobenko
Topic: Integrable systems
09/2009 – 02/2010 Exchange student at Swiss Federal Institute of Technology Zurich
Subjects: Mathematics, Theoretical Computer Sciences, Theoretical Physics
Supported by Erasmus Program and German National Academic Foundation
05/2009 – 07/2009 Student research assistant at Technische Universität Berlin
Supervisor: Prof. Dr. Alexander I. Bobenko
Topic: Hyperbolic geometry
10/2008 – 09/2014 Member of Berlin Mathematical School
Phase I student till 09/2011, Phase II student till 09/2014
10/2007 – 08/2011 Studies of Mathematics at Humboldt-Universität zu Berlin
Minor: Physics
Fellow of German National Academic Foundation
06/2007 Abitur at Herder-Gymnasium in Berlin
Advanced courses: Mathematics, Physics
Awarded with the Dr. Habbena-Preis by Bezirksamt Charlottenburg-Wilmersdorf and with the Schülerpreis of the Physikalischen Gesellschaft zu Berlin

Publications and preprints
2013 On a game on graphs
Preprint arXiv:1302.5711
Joint with Irina Mustaţă
Work-in-progress
2012 Discrete complex analysis on quad-graphs
Joint with Alexander I. Bobenko
Research report published in Oberwolfach Reports No. 34/2012, pp. 2091-2094
Work-in-progress
2012 The maximum number of intersections of two polygons
Preprint arXiv:1207.0996
Work-in-progress
2012 On discrete integrable equations with convex variational principles
With Alexander I. Bobenko
Preprint arXiv:1111.6273
Published in Lett. Math. Phys. 102 (2012), pp. 181-202
2011 The local geometry of compact homogeneous Lorentz spaces
Submitted
2011 Isometry groups of Lorentzian manifolds of finite volume and The local geometry of compact homogeneous Lorentz spaces
Diploma thesis, Humboldt-Universität zu Berlin, Faculty of Mathematics and Natural Sciences II, Department of Mathematics
ISBN: 978-3-656-01734-9 (Book); 978-3-656-01707-3 (eBook)
Preprint arXiv:1106.5539

Selected talks
June 2nd, 2014 Discrete complex analysis – the medial graph approach
Mathematical Physics Seminar at University of Geneve
November 22nd, 2013 Discrete complex analysis on quad-graphs
Summer school Discrete curvature - Theory and Applications at Centre International de Rencontres Mathématiques
April 24th, 2013 Discrete differential geometry
Opening ceremony of SFB/TRR 109 at Technische Universität Berlin
February 8th, 2013 A game on graphs
Keep it simple Seminar of SFB/TRR 109 at Technische Universität Berlin
July 9th, 2012 Discrete complex analysis on quad-graphs
Workshop Discrete Differential Geometry at Mathematisches Forschungsinstitut Oberwolfach
June 22nd, 2012 What is ... the Fabricius-Bjerre theorem?
"What is ...?" seminar of Berlin Mathematical School
September 21st, 2011 Isometriegruppen von Lorentz-Mannigfaltigkeiten von endlichem Volumen und Lokale Geometrie kompakter homogener Lorentz-Räume
Students' conference 2011 of German Mathematical Society in Cologne
February 1st, 2011 Integrable discrete Laplace equations with convex variational principles
Seminar: Discrete Differential Geometry of DFG Research Unit Polyhedral Surfaces at Technische Universität Berlin

Teaching
Summer 2014 Circle 7b of Mathematische Schülergesellschaft
together with Prof. Dr. Alexander I. Bobenko
Winter 2013/2014 Circle 7b of Mathematische Schülergesellschaft
together with Prof. Dr. Alexander I. Bobenko
Summer 2013 Mathematical Circle 5-6
together with Prof. Dr. Alexander I. Bobenko
Winter 2012/2013 Complex Analysis II / Geometry III: Riemann Surfaces: Classical and Discrete
Lecturer: Prof. Dr. Alexander I. Bobenko
Winter 2012/2013 Mathematical Circle 5-6
together with Prof. Dr. Alexander I. Bobenko

Activities
2014 Lecturer at MINT-Forscherwerkstatt, organized by Deutsche Telekom Stiftung, Jugend forscht, and START-Stiftung
2013 Lecturer at Math Kangaroo International Summer Camp Werbellinsee
2012 – present Coach at Jugend trainiert Mathematik
2012 – 2014 Teacher of a math circle at Technische Universität Berlin
2008 – 2014 Selection of problems and coordination of correction at Berliner Tag der Mathematik
2007 – 2009 Teacher at Mathematische Schülergesellschaft "Leonhard Euler"
2007 – 2014 Corrector and coach at Mathematical Olympiads in Berlin

Miscellaneous
2014 Science Slam: Diskreter Umgang mit krummen Sachen (Karlsruhe; in German)
2013 Science Slam: Kompakte homogene Lorentz-Mannigfaltigkeiten (Berlin; in German)
2012 Science Slam: Kompakte homogene Lorentz-Mannigfaltigkeiten (Göttingen; in German)
2011 Interview about my diploma thesis (in German)
2009 On the cardinalities of the set of integer sequences and the set of sequences of real numbers (in German)
2008 Construction of a Jordan set which is not a Borel set inside a Borel set of measure zero in n-dimensional Euclidean space (in German)
Based on the lecture Introduction into Measure and Integration Theory (in German) of Prof. Dr. Helga Baum
2007 Metamorphoses (Ovid) (in German)
Dr. Habbena-Preis by the Bezirksamt Charlottenburg-Wilmersdorf

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