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## Academic Curriculum Vitae

- 04/2020 - 03/2022:
*Interim Professor*(W2) for Numerical Analysis at Ruhr University**Bochum**(RUB) - 01/2020: Positive (intermediate) evaluation of the junior professorship
- Since 03/2017:
*Assistant Professor*(“Juniorprofessor”) for Numerics at RUB,

Faculty of Mathematics - 10/2016 - 02/2017:
*Senior Lecturer*(“Akademischer Oberrat auf Zeit”) at University of**Siegen**,

Department of Mathematics, Applied Analysis and Numerics Section - 04/2015 - 09/2016:
*Interim Professor*(“Lehrstuhlvertretung”, W3) for Numerics at University of Siegen,

Department of Mathematics, Workgroup Numerics - 05/2013 - 09/2016:
*Postdoctoral Researcher*(“Wiss. Mitarbeiter”) at Philipps-University**Marburg**,

Faculty of Mathematics and Computer Science, Workgroup Numerics and Optimization (Prof. Dr. Stephan Dahlke)

D-A-CH project*Adaptive Wavelet and Frame Techniques for Acoustic BEM* - 04/2010 - 04/2013:
*Research Associate*(“Wiss. Mitarbeiter”, 50%) at Friedrich-Schiller-University (FSU)**Jena**,

Faculty of Mathematics and Computer Science, Mathematical Institute,

Chair for Theoretical Numerical Analysis (Prof. Dr. Erich Novak) - 12/2009 - 05/2013:
*Ph.D. Student*(Dr. rer. nat.) at FSU Jena

Focus on Information-Based Complexity and Theoretical Numerical Analysis

Thesis:*Several Approaches to Break the Curse of Dimensionality*(final grade: summa cum laude)

supervised by Prof. Dr. Erich Novak - WS 2009/'10:
*Graduate Teaching Assistant*at FSU Jena,

Faculty of Mathematics and Computer Science, Mathematical Institute - WS 2004/'05 - SS 2009:
*Study of Mathematics*(Dipl.-Math.) at FSU Jena

Focus on Analysis and Applied Computer Sciences

Thesis:*Das Haar'sche System in Funktionenräumen vom Typ A*(final grade: 1.1)^{s}_{p,q}(IR)

supervised by Prof. Dr. Hans-Jürgen Schmeißer

Partially supported by German National Academic Foundation (“Studienstiftung”) - 03/2005 - 09/2005:
*Alternative Civilian Service*(“Zivildienst”) at LebenshilfewerkWeimar/Apolda e.V. - 07/2004 - 09/2004:
*Basic Military Service*(“Grundwehrdienst”) in Hammelburg - 05/2004:
*Abitur*at Staatl. Gymnasium 'Bergschule' Apolda (final grade: 1.5) - Born on 28/02/1986 in Weimar

## Research stays

- Katholieke Universiteit Leuven (Belgium)

Invited by: Prof. Dr. Dirk Nuyens,*Numerical Integration, Nonlinear Equations & Software*(NINES) group

Period: two weeks during May 2013 - Katholieke Universiteit Leuven (Belgium)

Invited by: Prof. Dr. Ronald Cools,*Numerical Analysis and Applied Mathematics Section*

Period: four weeks in October 2012 - University of New South Wales, Sydney (Australia)

Invited by: Prof. Frances Kuo,*School of Mathematics and Statistics*

Period: two weeks in February 2012

## Talks (Selection)

*Regularity of solutions to p-Laplace equations in Besov and Triebel-Lizorkin spaces*, Friedrich-Schiller University Jena, February 2022*Rate-optimal sparse approximation of compact break-of-scale embeddings*, Bestwig, February 2022*Adaptive BEM and Besov-type spaces based on wavelet expansions*, Reggio Calabria (Italy), November 2021*Higher order regularity shifts for the p-Poisson problem in Besov and Triebel-Lizorkin spaces*, Železná Ruda (Czech Republic), September 2021*Efficient numerical integration of permutation-invariant functions*, Padova (Italy), September 2021*Adaptive Wavelet Boundary Elements on Computer-aided Geometric Designs*(application presentation), Fulda University of Applied Sciences, June 2021*The universal approximation theorem*(application presentation), Ludwig Maximilian University of Munich, April 2021*Approximation und Regularität von Operatorgleichungen*, Heinrich Heine University Düsseldorf, November 2020*Approximation und Regularität von Operatorgleichungen*(application presentation), RUB, November 2020*New local higher order regularity shifts for the p-Poisson problem*, Erlangen-Nürnberg, March 2020*Higher order regularity shifts for the p-Poisson problem*, Egmond aan Zee (Netherlands), September/October 2019*Optimal recovery using wavelet trees*, Cambridge (UK), February 2019*Approximation und Regularität von Operatorgleichungen*, Chemnitz, November 2018*On the regularity of solutions to quasi-linear PDEs*, Hasenwinkel, September 2018*On the regularity of solutions to quasi-linear PDEs*, Prague (Czech Republic), July 2018*Explicit regularity estimates for solutions to quasi-linear PDEs*, Voss (Norway), September 2017*Explicit regularity estimates for solutions to quasi-linear PDEs*, Bedlewo (Poland), September 2017*Improved regularity estimates for solutions to the p-Poisson equation*, Barcelona (Spain), July 2017*Bounds on optimal regularity indices*, Marburg, November 2016*Improved regularity estimates for solutions to quasi-linear operator equations on Lipschitz domains*, Bedlewo (Poland), August/September 2016*Approximation properties of wavelet trees*, Basel (Switzerland), March 2016*Adaptive algorithms - theory and practice*, Banff (Canada), September/October 2015*(s,t)-weak tractability*, Dagstuhl, September 2015*Approximation of embeddings between spaces of Besov type*(semi-plenary), Siegmundsburg, July 2015*(s,t)-weak tractability*, Bedlewo (Poland), April/May 2015*On optimal wavelet approximations in spaces of Besov type*, Hasenwinkel, March 2015*On optimal wavelet approximations in spaces of Besov type*(semi-plenary), Kaiserslautern, February 2015*Regularity of boundary integral equations in Besov-type spaces based on wavelet expansions*, Montevideo (Uruguay), December 2014*A refined classification of problems with (sub)exponential information complexity*, Montevideo (Uruguay), December 2014*Besov-type function spaces on patchwise smooth manifolds and regularity analysis of operator equations in these scales*(semi-plenary), Traunkirchen (Austria), August 2014*Integration of permutation-invariant functions*, Leuven (Belgium), April 2014*Besov regularity for operator equations on patchwise smooth manifolds*, Hasenwinkel, March 2014*Besov regularity for operator equations on patchwise smooth manifolds*, Bestwig, January/February 2014*On lower bounds for integration of multivariate permutation-invariant functions*, Oberwolfach, October 2013*Integration of permutation-invariant functions*, Annecy (France), July 2013*Several Approaches to Break the Curse of Dimensionality*(thesis defense), Jena, 13/05/2013*Probabilistic star discrepancy bounds for double infinite random matrices*, Dagstuhl, September 2012*Probabilistic star discrepancy bounds for double infinite random matrices*, Smolenice (Slovakia), June 2012*Linear tensor product problems in (anti-) symmetric Hilbert spaces*, Sydney (Australia), February 2012*Tractability of L*, Bonn, June 2011_{∞}-approximation on weighted Banach spaces of smooth functions*Remarks on L*, Jena, December 2010_{p}-approximation of infinitely differentiable multivariate functions*On error bounds for L*, Oppurg, October 2010_{∞}-approximation of smooth functions*Komplexität hochdimensionaler Probleme - Eine Einführung*, Siegmundsburg, July 2010*Upper error bounds for L*, Jena, May 2010_{∞}-approximation by means of embeddings*Haar bases in function spaces from the type A*, Jena, December 2009^{s}_{p,q}(IR)

## Scholarships, Grants, Awards

- Grant:
*Ruhr University Bochum*, additional graduate teaching assistant to support digital lectures, 2020 - Travel grant:
*Isaac Newton Institute for Mathematical Sciences*(UK) for attending the workshop on*Challenges in optimal recovery and hyperbolic cross approximation*, 2019 - Scholarship / Travel grant: Global Young Faculty membership,
*Stiftung Mercator*, 2017-2019 - Travel grant:
*Erwin Schrödinger International Institute for Mathematics and Physics*(Austria) for attending the program on*Tractability of High Dimensional Problems and Discrepancy*– not used due to schedule conflicts, 2017 - Travel grant: Research Group of Computational Mathematics,
*University of Basel*, for attending the workshop on*Boundary Elements and Adaptivity*, 2016 - Travel grant:
*Ruhr University Bochum*, 2015 - Travel grant:
*Banff International Research Station*, Canada, 2015 - Travel grant:
*Polish Academy of Sciences*for attending the Information-based Complexity conference, 2015 - Travel grant: Research Group of Computational Mathematics,
*University of Basel*, 2015 - Travel grant:
*Adolf Haeuser Stiftung*for attending the Foundations of Computational Mathematics (FoCM) Conference, 2014 - Short-term scholarship: ICERM Semester Program on High-dimensional Approximation, 2014
- Travel grant/Award:
*Oberwolfach Leibniz Graduate Student*, 2013 - Short-term scholarship: Department of Computer Science,
*KU Leuven*, 2013 - Travel grant:
*Philipps-University Marburg*, 2013 - Short-term scholarship: Department of Computer Science,
*KU Leuven*, 2012 - Scholarship:
*German National Academic Foundation*('Studienstiftung des deutschen Volkes'), 2007-2009

## Further Professional Activities

- Organizer of
- annual Rhein-Ruhr-Workshops
*über Angewandte Mathematik, Approximationstheorie und Numerische Mathematik*in Bestwig, together with G. Plonka-Hoch, T. Sauer, and M. Skrzipek (starting 2023) - Minisymposium on
*Adaptivity, Regularity, and Fast Approximation*at EnuMath 2019 in Egmond aan Zee (Netherlands), together with L. Diening and Ch. Kreuzer - Minisymposium on
*Recent Advances in A Posteriori Error Estimation and Adaptive Methods*at ICIAM2019 in Valencia (Spain), together with F. Bertrand - Special Session
*High dimensional numerical integration*at MCQMC 2016 in Stanford (USA)

- annual Rhein-Ruhr-Workshops
- Referee for
- Advances in Operator Theory,
- Acta Mathematica Scientia,
- Complex Variables and Elliptic Equations,
- ENUMATH 2019 Proceedings,
- Journal of Approximation Theory,
- Journal of Complexity,
- Journal of Fourier Analysis and Applications,
- Journal of Geometric Analysis,
- Mathematische Nachrichten,
- Nonlinear Analysis,
- Results in Mathematics,
- Statistical Papers, and
- SIAM/ASA Journal on Uncertainty Quantification

- Member of
- GAMM Junior Research Group at RUB (senior membership, since 2021)
- Early Career Researchers (ECR) Board, RUB (since 2021)
- Hiring Committee “W1ttW2 Computational Plasma Physics”, RUB (2019)
- Dr. Hans Riegel-Fachpreis Selection Board (since 2018)
- Freshmen Mentoring Programme, RUB (since WS 2017/2018)
- Global Young Faculty V (interdisciplinary network funded by Stiftung Mercator, 10/2017-03/2019)
- LabExchange selection board (Research abroad grant programme for graduate students by inSTUDIESplus@RUB, since 06/2017)
- Hiring Committee “W1 Stochastik”, RUB (2017)
- ruhr.paD-network (“UA Ruhr Zentrum für partielle Differentialgleichungen”, since 03/2017)
- “Departmentrat Mathematik”, University of Siegen (04/2015-02/2017)
- Ph.D. Examining Board (transcript writer), Philipps-University Marburg (2016)
- Hiring Committee “W2 Optimierung”, Philipps-University Marburg (2015)
- German Association of University Professors and Lecturers (DHV, since 2016)

- Authorized Examiner for
*Landesprüfungsamt für Lehrämter an Schulen*, Nordrhein-Westfalen (“Staatsexamensprüfer”, 04/2015-02/2017)