• Inverse Problems in Partial Differential Equations,
  National Cheng Kung University, Tainan, Taiwan, May 17, 2023.
• Inverse Problems in Partial Differential Equations,
  National Yang Ming Chiao Tung University, Hsinchu, Taiwan, May 16, 2023.
• Inverse Problems in Partial Differential Equations,
  Math CU Seminar, Chulalongkorn University, Bangkok, Thailand, March 21, 2023.
• Towards global convergence for inverse coefficient problems,
  Inverse Problems in the Desert, New York University Abu Dhabi Institute, UAE, December 19–22, 2022.
• Computertomographie,
  Begemann Schule, Frankfurt, November 3, 2022
• Towards global convergence for inverse coefficient problems,
  IWR Scientific Computing Seminar, Heidelberg University, Germany, June 23, 2022.
• Global convergence and stable invertibility for a Robin transmission Calderón problem with finitely many measurements,
  10th International Conference Inverse Problems: Modelling and Simulation (IPMS), Malta, May 22-28, 2022.
• Uniqueness and convex reformulation for inverse coefficient problems with finitely many measurements,
  Inverse Problems Seminar, UC Irvine, CA, USA, April 7, 2022.
  Video of the talk: https://youtu.be/2mvFCS_2smM
• Stable Differentiation of Monte Carlo Priced Options with Discontinuous Payoff,
  22nd MathFinance Conference, Frankfurt, Germany, March 21-22, 2022.
• Monotonicity-Based Inversion of the Fractional Schrödinger Equation,
  2022 SIAM Conference on Imaging Science (IS22), Berlin, Germany, March 21-25, 2022.
• Towards global convergence for inverse coefficient problems with finitely many measurements,
  Conference on Mathematics of Wave Phenomena, Karlsruhe Institute of Technology, Germany, February 14-18, 2022.
• Uniqueness and global convergence for inverse coefficient problems with finitely many measurements,
  ICASE 2021, Ulaanbaatar, Mongolia, November 26, 2021.
• Towards global convergence for inverse coefficient problems,
  Workshop Inverse Problems and Beyond, Celebrating the 60th birthday of Martin Hanke, University of Mainz, Germany, October 22, 2021.
• Uniqueness and global convergence for inverse coefficient problems with finitely many measurements,
  2nd Alps-Adriatic Inverse Problems Workshop 2021, Chemnitz Inverse Problems Symposium on tour, University of Klagenfurt, Austria, September 22–24, 2021.
• Uniqueness and global convergence for a discrete inverse coefficient problem,
  Seminar in Numerical Analysis, Dept. of Mathematics & Computer Science, University of Basel, Basel, Switzerland, December 4, 2020.
• Uniqueness and global convergence for a discrete inverse coefficient problem,
  Colóquio do Departamento de Matemática, Universidade Federal de Santa Catarina, Florianópolis, Brazil, November 27, 2020.
• Inverse Probleme und ihre Anwendungen (movie.avi)
  12. Jahrestreffen von Alumni, Studierenden und Dozenten der Mathematik, Goethe-Universität Frankfurt am Main, Germany, November 16, 2019.
• New stability results for inverse coefficient problems (movie.avi),
  ICIAM 2019 - International Congress on Industrial and Applied Mathematics, Valencia, Spain, July 15-19, 2019.
• Monotonicity-based inversion of the fractional Schrödinger equation
  Applied Inverse Problems Conference 2019, Grenoble, France, July 8-12, 2019.
• Monotonicity methods for medical imaging (movie.avi, EIDORS1.avi, minres_cvx1.avi)
  Applied Inverse Problems Conference 2019, Grenoble, France, July 8-12, 2019.
• Inverse Probleme und ihre Anwendungen (movie.avi)
  MaMpF - Mainzer Mathematiker + Freunde, 20 Jahre Freunde der Mathematik, Johannes Gutenberg University Mainz, Germany, November 17, 2018.
• Monotonicity methods for inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  2018 Joint Meeting of the Korean Mathematical Society and the German Mathematical Society, COEX, Seoul, Korea, October 3-6, 2018.
• Monotonicity methods for inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Inverse Problems for Partial Differential Equations, In honor of Professor Masaru Ikehata on the occasion of his 60th Birthday, Tokyo University of Science, Japan, August 26-28, 2018.
• The Monotonicity Method for the Helmholtz equation
  Conference on Mathematics of Wave Phenomena, Karlsruhe Institute of Technology, Germany, July 23-27, 2018.
• Monotonicity-based inverse scattering
  SIAM Conference on Imaging Science, Bologna, Italy, June 5-8, 2018.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Workshop on Reconstruction Methods for Inverse Problems, INdAM - Istituto Nazionale di Alta Matematica "F. Severi", Rome, Italy, May 28 - June 1, 2018.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  New Trends in Parameter Identification for Mathematical Models, IMPA, Rio de Janeiro, Brazil, October 30-November 03, 2017.
  Video of the talk: https://youtu.be/PhxUBDR-wII
• Inverse problems and medical imaging (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Applied and Computational Mathematics Seminar, School of Mathematical Sciences, Monash University, Melbourne, Australia, September 15, 2017.
• Detecting stochastic inclusions in electrical impedance tomography (movie.avi)
  The International Conference on Sensing and Imaging ICSI 2017, Chengdu, China, June 5-7, 2017.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Applied Inverse Problems 2017, Hangzhou, China, May 29-June 02, 2017.
• Monotonicity method for inverse scattering
  Oberwolfach Workshop on Computational Inverse Problems for Partial Differential Equations, Oberwolfach, Germany, May 14-20, 2017.
• Inverse problems and medical imaging (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Seminario di Calcolo delle Variazioni ed Equazioni alle Derivate Parziali, University of Florence, Italy, January 27, 2017.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  IFIP WG 7.4 Workshop on Inverse Problems and Imaging, Mülheim an der Ruhr, Germany, December 19-21, 2016.
• Inverse problems and medical imaging (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Analysis-Seminar Augsburg-München, University of Augsburg, Germany, December 15, 2016.
• Towards combining optimization-based techniques with shape reconstruction methods in EIT (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Oberwolfach Workshop on Theory and Numerics of Inverse Scattering Problems, Oberwolfach, Germany, September 18–24, 2016.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  ICSI 2016 - The International Conference on Sensing and Imaging, Taiyuan, China, July 25–28, 2016.
• Regularizing the optimization-based solution of inverse coefficient problems with monotonicity constraints (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  The 10th International Conference on Optimization: Techniques and Applications (ICOTA 10), Ulaanbaatar, Mongolia, July 23–26, 2016.
• Inverse problems and medical imaging (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Mongolian University of Science and Technology, Ulaanbaatar, Mongolia, July 21, 2016.
• Monotonicity-based regularization of inverse coefficient problems (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  MediaV Award Lecture, ICIP 2016, Ewha Womans University, Seoul, South Korea, 27. Juni - 1. Juli 2016.
• Inverse problems and medical imaging (movie.avi, EIDORS1.avi, minres_quadprog1.avi, minres_cvx1.avi)
  Colloquium of the Institute of Mathematics, Johannes Gutenberg University Mainz, 9. Juni 2016.
• Mathematik in der Medizintechnik (movie.avi)
  NIGHT of SCIENCE 2016, Goethe-Universität Frankfurt am Main, 3. Juni 2016.
• Detecting stochastic inclusions in electrical impedance tomography (movie.avi)
  The 8th International Conference Inverse Problems: Modeling and Simulation (IPMS-2016), Fethiye, Turkey, 23.-28. Mai 2016.
• Inverse problems and medical imaging (movie.avi)
  Felix-Klein-Colloquium, Department of Mathematics, TU Kaiserslautern, 3. Mai 2016.
• Monotonicity-based methods for inverse coefficient problems (movie.avi)
  Analysis Seminar, Department of Mathematics and Statistics, University of Jyväskylä, Finnland, 14. April 2016.
• Inverse problems and medical imaging (movie.avi)
  Chemnitzer Mathematisches Colloquium, TU Chemnitz, 18. Februar 2016.
• Inverse problems and medical imaging (movie.avi)
  Seminar on inverse problems, University College London, UK, 29. Januar 2016.
• Inverse problems and medical imaging (movie.avi)
  Kolloquium der Fachrichtung Mathematik, Universität des Saarlandes, Saarbrücken, 27. November 2015.
• Monotonicity-based methods for elliptic inverse coefficient problems (movie.avi)
  Workshop Mathematics for Imaging, École normale supérieure, Paris, Frankreich, 21.-23. Oktober 2015.
• Inverse problems and medical imaging (movie.avi)
  Swiss IEEE EMBS Chapter, Bern University of Applied Sciences, Biel/Bienne, Schweiz, 16. Oktober 2015.
• Monotonicity-based methods for elliptic inverse coefficient problems (movie.avi)
  Department of Mathematics, Southeast University, Nanjing, China, 21. September 2015.
• Detecting stochastic inclusions in electrical impedance tomography (movie.avi)
  ICIAM 2015 - The 8th International Congress on Industrial and Applied Mathematics, Beijing, China, 10-14. August 2015.
• Shape reconstruction in elliptic inverse coefficient problems (movie.avi)
  Workshop on Generalised Convexity and Set Computation, Imperial College London, UK, 3.-5. August 2015.
• Monotonicity-based methods for elliptic inverse coefficient problems (movie.avi)
  ICERM Topical Workshop on Computational and Analytical Aspects of Image Reconstruction, Brown University, Providence, RI, USA, 13.-17. Juli 2015.
  Video of the talk: ICERM Video Archive
• Inverse problems and medical imaging (movie.avi)
  Rhein-Main Arbeitskreis Mathematics of Computation, TU Darmstadt, 10. Juli 2015.
• Combining Frequency-difference and Ultrasound-modulated EIT
  AIP - Applied Inverse Problems 2015, Helsinki, Finnland, 25.-29. Mai 2015.
• Inverse problems and medical imaging
  Mathematisches Kolloquium, Universität Duisburg-Essen, 13. Mai 2015.
• Introduction to Inverse Problems
  Department of Computational Science and Engineering (CSE), Yonsei University, Seoul, Südkorea, 3. April 2015.
• Inverse coefficient problems in elliptic partial differential equations
  OCIP 2015 - Workshop on Numerical Methods for Optimal Control and Inverse Problems, Technische Universität München, Garching, 9.-11. März 2015.
• Introduction to the numerical solution of inverse problems and shape detection in electrical impedance tomography (Lecture 1, Lecture 2, Lecture 3, Lecture 4, Theorems and Proofs)
  Advanced Instructional School on Theoretical and Numerical Aspects of Inverse Problems,
  TIFR Centre For Applicable Mathematics, Bangalore, Indien, 16.-28. Juni 2014.
• Combining Frequency-difference and Ultrasound-modulated EIT
  SIAM Conference on Imaging Science, Hong Kong Baptist University, Hongkong, 12.-14. Mai 2014.
• The Vanishing Conductivity Limit in Eddy Current Imaging
  SIAM Conference on Imaging Science, Hong Kong Baptist University, Hongkong, 12.-14. Mai 2014.
• Inverse coefficient problems and shape reconstruction
  Seminar Inverse Probleme/Optimierung, Darmstadt, 19. November 2013.
• Inverse coefficient problems and shape reconstruction
  18th ÖMG Congress and Annual DMV Meeting, University of Innsbruck, Österreich, 23.-27. September 2013.
• Inverse coefficient problems and shape reconstruction
  Applied Inverse Problem Conference, Korea Advanced Institute for Sciences and Technology, Daejeon, Südkorea, 1.-5. Juli 2013.
• Inverse problems for the transient eddy current equation
  Applied Inverse Problem Conference, Korea Advanced Institute for Sciences and Technology, Daejeon, Südkorea, 1.-5. Juli 2013.
• Inverse parameter identification problems
  Kolloquium ICP - Institute for Computational Physics, Stuttgart, 27. Juni 2013.
• Inverse Probleme
  Optikkreis, Institut für Technische Optik, Stuttgart, 12. Juni 2013.
• Direct and Inverse Eddy Current Problems
  IFIP TC7.2 Workshop "Electromagnetics - Modelling, Simulation, Control and Industrial Applications", Weierstrass Institute for Applied Analysis and Stochastics, Berlin, 13.-17. Mai 2013.
• Inverse parameter identification problems
  SimTech Colloquium Summer Term 2013, Stuttgart, 30. April 2013.
• Recent progress on the factorization method for electrical impedance tomography
  Inverse Problems: Scattering, Tomography and Parameter Identification, Bad Herrenalb, 8.-11. April 2013.
• Direct and Inverse Eddy Current Problems
  Department of Mathematics and Applications, École Normale Supérieure, Paris, Frankreich, 29. März 2013.
• Combining frequency-difference EIT with ultrasound modulated EIT
  Department of Computational Science and Engineering (CSE), Yonsei University, Seoul, Südkorea, 13. Februar 2013.
• Fast shape-reconstruction in electrical impedance tomography
  Chinese-German Symposium on Inverse Problems, Saarbrücken, 07.-11. Oktober 2012.
• Fast shape-reconstruction in electrical impedance tomography
  The Sixth International Conference "Inverse Problems: Modeling and Simulation ", Antalya, Türkei, 21.-26. Mai 2012.
• Tikhonov regularization in inverse problems: From basics to applications
  CSE Special Lecture, Yonsei University, Seoul, Südkorea, 16. März 2012.
• Monotony based shape-reconstruction in electrical impedance tomography
  Inverse problems and numerical methods in applications, Institut für Werkstofftechnik, Universität Bremen, 8.-9. März 2012.
• Inverse Eddy Current Problems
  Oberwolfach Workshop on Inverse Problems for Partial Differential Equations, Oberwolfach, 19.-25. Februar 2012.
• Fast shape-reconstruction in electrical impedance tomography
  DMV Jahrestagung, Köln, Germany, 19.-22. September 2011.
• Monotonicity Methods in Electrical Impedance Tomography
  ICIAM 2011, Vancouver, BC, Canada, 18.-22. Juli 2011.
• Simultaneous identification of multiple coefficients in an elliptic PDE
  SIAM Conference on Optimization, Darmstadt, Germany, 16.-19. Mai 2011.
• Computertomographie - wie Mathematik Unsichtbares sichtbar macht,
  TUM-Schülertag Mathematik, Technische Universität München, Germany, 4. November 2010.
• Monotony Based Imaging in EIT,
  ICNAAM 2010, Rhodes, Greece, 19.-25. September 2010.
• Exact shape-reconstruction by one-step linearization in EIT,
  Yonsei University, Seoul, South Korea, 5. August 2010.
• Computertomographie - wie Mathematik Unsichtbares sichtbar macht,
  11. Tag der Mathematik für Schülerinnen und Schüler, Technische Universität München, 3. Juli 2010.
• Novel tomography techniques and parameter identification problems,
  Colloquium of the Institute of Biomathematics and Biometry, Helmholtz Zentrum München, 23. Juni 2010.
• Localized potentials for elliptic inverse coefficient problems,
  Inverse Problems, Computation, and Applications, CIRM Luminy, France, 31. Mai - 4. Juni 2010.
• Localized potentials for elliptic inverse coefficient problems,
  The 8th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Dresden, Germany, 25.-28. Mai 2010.
• Exact shape-reconstruction by one-step linearization in electrical impedance tomography,
  Oberwolfach Workshop on Mathematics and Algorithms in Tomography, Oberwolfach, Germany, 11.-17. April 2010.
• Exact shape-reconstruction by one-step linearization in electrical impedance tomography,
  15th Inverse Days, Luosto, Finland, 16.-18. Dezember 2009.
• Uniqueness in optical tomography,
  Yonsei University, Seoul, South Korea, 22. September 2009.
• Simultaneous imaging of absorption and scattering in dc diffuse optical tomography,
  World Congress 2009 - Medical Physics and Biomedical Engineering, Munich, Germany, 7.-12. September 2009.
• EIT Lung Monitoring using the Factorization Method (AIP09movie.avi),
  Conference on Applied Inverse Problems, Vienna, Austria, 20.-24. Juli 2009.
• New uniqueness results in diffuse optical tomography,
  Workshop on Electromagnetic Inverse Problems, Manchester, UK, 15.-18. Juni 2009.
• Computertomographie -- wie Mathematik Unsichtbares sichtbar macht,
  Vortrag zum Tag der offenen Tür an der Joh. Gutenberg Universität Mainz, 3. Februar 2009.
  Eine schöne Ausarbeitung dieses Themas von Roland Griesmaier findet sich unter www.math.udel.edu/~griesmai/teaching/comptom.pdf.
• Localized potentials and reconstruction methods for EIT (SeoulMovie1.avi, SeoulMovie2.avi),
  Yonsei University, Seoul, South Korea, 25 September 2008.
• Sampling methods for low-frequency electromagnetic imaging,
  IS08 - SIAM Conference on Imaging Science, San Diego, CA, USA, 7.-9. Juli, 2008.
• Detecting inclusions in complex conductivity EIT without reference measurements,
  MIMS Workshop on New Directions in Tomographic Image Reconstruction, Manchester, UK, 30. Juni - 1. Juli 2008.
• Low-frequency electromagnetic imaging with the factorization method,
  MIMS Workshop on New Directions in Analytical and Numerical Methods for Forward and Inverse Wave Scattering, Manchester, UK, 23.-24. Juni 2008.
• Monotonicity arguments in electrical impedance tomography,
  NAM-Kolloquium, Georg-August-Universität Göttingen, Germany, 29. April 2008.
• Detecting inclusions of mixed type in optical tomography,
  Culminating Workshop of the RICAM Special Semester on Quantitative Biology analyzed by Mathematical Methods, Obergurgl, Austria, 22.-27. Januar 2008.
• Lokalisierte Potentiale in der elektrischen Impendanztomographie,
  Rhein-Main Arbeitskreis "Mathematics of Computation", Johannes Gutenberg-Universität Mainz, Germany, 23 November 2007.
• Localized potentials in electrical impedance tomography,
  Workshop on Bioimaging II / PDEs, Special Semester on Quantitative Biology analyzed by Mathematical Methods, RICAM, Linz, Austria, 19-23 November 2007.
• Sampling methods for low-frequency electromagnetic imaging,
  6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland, 16-20 July 2007.
• Electric potentials with localized divergence properties,
  AIP 2007 First International Congress of IPIA, Conference on Applied Inverse Problems 2007: Theoretical and Computational Aspects, University of British Columbia Campus, Vancouver, Canada, 25-29 June 2007.
• Electric potentials with localized divergence properties,
  AG Numerische Mathematik, Joh. Gutenberg-Universität Mainz, Germany, 11-15 June 2007.
• Sampling methods for low-frequency electromagnetic imaging,
  Oberwolfach workshop on Inverse Problems in Wave Scattering, Oberwolfach, 4-10 March 2007.
• Detecting Interfaces in a Parabolic-Elliptic Problem,
  Joint Mathematics Meetings of AMS and MAA, AMS Special Session on Nonsmooth Analysis in Inverse and Variational Problems, New Orleans, LA, USA, 5-8 Januar 2007.
• Gebietserkennung in einem parabolisch-elliptischen Problem,
  Darmstadt, Germany, 6 July 2006.
• Detecting Interfaces in a Parabolic-Elliptic Problem from Surface Measurements,
  SIAM Conference on Imaging Science, Minneapolis, MN, USA, 15-17 May 2006.
• Detecting objects by low-frequency electromagnetic imaging,
  77th Annual Meeting of the GAMM, Technische Universität Berlin, Germany, 27-31 March 2006.
• Detecting magnetic objects using low frequency electromagnetic scattering,
  Workgroup on Inverse Problems, Mathematical Institute II, University of Karlsruhe, Germany, 14 December 2005.
• A sampling method for detecting buried objects,
  Applied Inverse Problems 2005, Royal Agricultural College, Cirencester, UK, 26-30 June 2005.
• The Factorization Method for a parabolic-elliptic problem,
  Inverse Problems Workshop, organized by the Department of Computer Science, University of Innsbruck,Obergurgl, Austria, 11-13 April 2005.
• The Factorization Method for Real Elliptic Problems,
  76th Annual Meeting of the GAMM, Université du Luxembourg, 28 March - 1 April 2005.

Education and Professional Experience

• since 10/2015: Full Professor (Chair) of Numerics for Partial Differential Equations, Goethe-University Frankfurt, Germany
• 03/2013 - 09/2015: Full Professor (Chair) of Optimization and Inverse Problems, University of Stuttgart, Germany
• 09/2011 - 02/2013: Associate Professor for Inverse Problems, University of Würzburg, Germany
• 04/2010 - 08/2011: Associate Professor for Applied Mathematics (5 years fixed term), Technical University of Munich, Germany
• 02/2008 - 03/2010: Research Assistant, University of Mainz, Germany
• 10/2006 - 01/2008: Junior Scientist at the Radon-Institute for Computational and Applied Mathematics (RICAM), Linz, Austria
• 07/2006: PhD in Mathematics, University of Mainz, Germany
• 03/2002: Diploma in Mathematics, University of Mainz, Germany

Professional Memberships

• Editorial board member of Communications on Analysis and Computation (since 2023), Inverse Problems (since 2019), Math. Methods Appl. Sci. (since 2013) and former board member of Inverse Probl. Sci. Eng. (2014-2021).
• Contact professor of the Studienstiftung des deutschen Volkes (since 2017)
• Treasurer of the Inverse Problems International Association IPIA (since 2022)
• Member of DHV, DMV, Friends of Oberwolfach, GAMM, Gesellschaft für inverse Probleme, IEEE, IPIA, SIAM

Awards and Fellowships

• Robert Bartnik Visiting Fellowship to Monash University, Melbourne, Australia (09/2017)
• MediaV Young Researcher Award (06/2016)
• Dissertation Prize of the Friends of Mainz University (06/2007)
• General Membership at the Institute for Mathematics and Its Applications, University of Minnesota, Minneapolis, USA (05-06/2006)
• Scholarship of the Studienstiftung des deutschen Volkes (02/2000-03/2002)