Table of contents

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Professional career

Since 2018 Professor Department of Mathematics, National Taiwan Normal University (NTNU), Taipei, Taiwan (R.O.C.);
Yushan Young Fellow, Ministry of Education.
2017–2018 Interim Professorship Applied Mathematics for László Székelyhidi (50% FTE), University of Leipzig, Germany;
Postdoctoral researcher (50% FTE), Max Planck Institute for Mathematics in the Sciences, Leipzig.
2012–2017 Max Planck research group leader of the group Geometric Measure Theory, Max Planck Institute for Gravitational Physics—Albert Einstein Institute (AEI), Potsdam, Germany;
Associate Professor for Geometric Analysis, Institute for Mathematics, University of Potsdam (UP); joint appointment with the Max Planck Society.
2009–2012 Postdoctoral researcher, AEI.
2008–2009 Postdoctoral researcher, ETH Zurich, Switzerland.
2008 Postdoctoral researcher, AEI.


2008 PhD in Mathematics, University of Tübingen. C2 rectifiability and Q valued functions (supervisors: Reiner Schätzle and Tom Ilmanen).
2005 Diploma in mathematics, University of Bonn, Germany.

Funding and fellowships

Since 2022 Grant No. MOST 111-2115-M-003-014 -, National Science and Technology Council (formerly termed Ministry of Science and Technology), Taiwan (R.O.C.).
Since 2021 Grant No. MOST 110-2115-M-003-017 -, Ministry of Science and Technology, Taiwan (R.O.C.).
2019–2023 Grant No. MOST 108-2115-M-003-016-MY3, Ministry of Science and Technology, Taiwan (R.O.C.).
Since 2018 Yushan Young Fellowship, Programme of the Ministry of Education in Taiwan (R.O.C.).
2013–2017 Funding for PhD student Mario Santilli (source: Max Planck graduate schools).
2012–2017 Funding for the research group Geometric Measure Theory (source: Max Planck Society).
2000–2005 Fellowship for Diploma studies (source: State of Bavaria).

Research visits

2022 Germany, six weeks: University of Bonn; host Stefan Müller.
2019 Poland, twelve days: University of Warsaw; host Sławomir Kolasiński.
2017 Switzerland, six months: University of Zurich; host Camillo De Lellis.
2015 UK, three weeks: Universities of Cambridge and Warwick; hosts Costante Bellettini and David Preiss.
2011 US, one month: Universities of Rice, Columbia and Stanford and the Massachusetts Institute of Technology (MIT); hosts: Leobardo Rosales, Lan-Hsuan Huang, Richard Schoen, and Michael Eichmair.
2009 Japan, three weeks: Hokkaido University; host: Yoshihiro Tonegawa.
2006 Switzerland, seven months: ETH Zurich; host: Tom Ilmanen.

Invited presentations at conferences

2023 Annual Meeting of Taiwanese Mathematical Society, keynote talk, National Tsing Hua University, Taiwan (R.O.C.).
2020 Weekend in Geometric Measure Theory and its Applications, East China Normal University, Shanghai, P.R. China.
2020 Federer’s 100th birthday web conference, University of Leipzig, Germany.
2019 The second Taiwan-Japan Joint Conference on Differential Geometry, NCTS, Taipei, Taiwan (R.O.C.).
2019 Joint forum NTNU and Kyushu University (Japan): session mathematics, NTNU, Taipei, Taiwan (R.O.C.).
2018 The Seventeenth Taiwan Geometry Symposium, National Kaohsiung Normal University, Taiwan (R.O.C.).
2018 Workshop on Geometric Measure Theory and Minimal Submanifolds, National Center for Theoretical Studies, Taiwan (R.O.C.).
2017 3rd Leipzig-Prague meeting, Hrensko, Czech Republic.
2017 Geometric Measure Theory, University of Warwick, UK.
2015 Geometric Measure Theory and Calculus of Variations: theory and applications, Institut Fourier, Grenoble, France.
2015 Geometric Analysis, Free Boundary Problems and Measure Theory, MPI for Mathematics in the Sciences, Leipzig, Germany.
2013 ERC Workshop on Geometric Measure Theory, Analysis in Metric Spaces and Real Analysis, SNS Pisa, Italy.
2013 Geometric Measure Theory and Optimal Transport, ICTP Trieste, Italy.
2012 Geometric curvature energies, Kloster Steinfeld, Germany.
2012 Calculus of variations, Mathematical Research Institute Oberwolfach (MFO), Germany.

Schools and minicourses on my research

2019 Seven video lectures (joint with Mario Santilli), Relating curvatures of geometric measure and convex geometry, Summer School Geometric Measure Theory and Related Fields, Beijing, China.
2018 Six lectures, Sobolev functions and second order elliptic PDEs on varifolds, Seminar on Geometric Measure Theory, Varifolds, and Their Applications, Portland, US.
2016 Five-lecture course, Weakly differentiable functions and Sobolev functions on varifolds, thematic week Geometric Measure Theory, Toulouse, France.
2015 Two double-lectures, Weakly differentiable functions on varifolds, University of Cambridge, UK.

Invited presentations at research seminars

2022 University of Bonn, Germany.
2022 Universities of Chemnitz (Germany), Freiburg (Germany), Pittsburgh (US), and Salzburg (Austria).
2020 Okinawa Institute for Science and Technology, Japan.
2019 Tokyo Institute of Technology, Japan.
2019 Academia Sinica, Taiwan (R.O.C.).
2019 University of Salzburg, Austria.
2018 University of Augsburg, Germany.
2015 University of Warwick, UK.
2016 University of Hamburg, Germany.
2015 University of Jena, Germany.
2015 University of Warwick, UK.
2014 FAU Erlangen-Nuremberg, Germany.
2013 Charles University, Prague, Czech Republic.
2012 MPI for Mathematics in the Sciences, Leipzig, Germany.
2011 University of Cambridge, UK.
2011 Stanford University, US.
2011 University of Columbia, US.
2011 Massachusetts Institute of Technology (MIT), US.
2011 Rice University, US.
2010 University of Trento, Italy.
2009 Hokkaido University, Japan.
2009 Free University of Berlin, Germany.
2008 RWTH Aachen, Germany.
2007 ETH Zurich, Switzerland.
2004 RWTH Aachen, Germany.

Organisation of research seminars and conferences

Since 2020 Co-Organiser (with Giovanni Alberti, Guido De Philippis, Yoshihiro Tonegawa, and Neshan Wickramasekera), research seminar NCTS international Geometric Measure Theory seminar with complete virtual venue; National Center for Theoretical Sciences.
Since 2019 Co-Organiser (with Siao-Hao Guo, Yng-Ing Lee, Chung-Jun Tsai, and Mao-Pei Tsui), research seminar NCTS Differential Geometry Seminar; National Center for Theoretical Sciences.
2012–2017 Co-Organiser (with Theodora Bourni, Klaus Ecker, Mathew Langford, and Jan Metzger), research seminar Topics in geometric analysis; AEI, UP, and the Free University of Berlin.
2012 Co-Organiser (with Gerhard Huisken and Neshan Wickramasekera), conference Geometric measure theory, AEI.
Speakers (seven of 16): Robert Hardt (Rice University), Jan Malý (Charles University Prague), Fernando Marques (IMPA, Rio de Janeiro), Tristan Rivière (ETH Zurich), Leon Simon (Stanford University), Yoshihiro Tonegawa (Hokkaido University), and Brian White (Stanford University).

Teaching activities for graduate students

2014 Minicourse, main lecturer and organiser, Plateau type problems using sets, AEI.
2013–2016 Reading seminar, organiser, Geometric measure theory, AEI.
2012 Minicourse, lecturer, Almgren’s optimal isoperimetric inequalities, UP.
2011 Minicourse, lecturer, Some aspects of Allard’s regularity theorem, MIT.
2010 Minicourse, lecturer, Federer’s curvature measures, Free University of Berlin.

Peer review activities

2015 Reviewer book: Birkhäuser (Springer-Verlag).
Since 2011 Reviewer journal articles: Adv. Calc. Var. · Anal. PDE · Ann. Global Anal. Geom. · Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) · Calc. Var. Partial Differential Equations · Geom. Funct. Anal. · Int. Math. Res. Not. IMRN · J. Geom. Anal. · J. Eur. Math. Soc. (JEMS) · J. Amer. Math. Soc. · J. Differential Geom. · Manuscripta Math. · Math. Ann. · Proc. Lond. Math. Soc. (3) · Rev. Mat. Iberoam.
2009 Reviewer proposal: National Science Foundation, US.


2020–2022 Center Scientist at the National Center for Theoretical Sciences, Taipei.
Since 2020 Associate editor: Taiwanese Journal of Mathematics, Taipei.
2020–2021 Member of the DAAD scholarship selection committee, DAAD Information Center Taipei.
Since 2019 Affiliated Member (formerly termed Scientific Member) of the National Center for Theoretical Sciences, Taipei.
2015–2017 Member of graduate school: Berlin Mathematical School.
2012–2015 Member of graduate school: IMPRS for Geometric Analysis, Gravitation and String Theory, Potsdam.