Constantin Greif, M. Sc.

Short CV:

• Oct. 2012 - Sep. 2015: Bachelor of Science, Mathematics and Management, Ulm University
• Aug. 2016 - May 2017: Master of Science, Mathematics, University of Wisconsin-Milwaukee (USA)
• Oct. 2015 - March 2019: Master of Science, Mathematics, Ulm University
• Since Oct. 2018: Scientific Employee, Institute for Numerical Mathematics, Ulm University
• Since April 2019: Ph.D. student, Institute for Numerical Mathematics, Ulm University

• Numerical Optimization (Winter term: ’21/’22)
• Numerical Methods for Ordinary Differential Equations (Summer term: 2022)
• Numerical Methods for Partial Differential Equations (Summer term: 2021, winter term: ’22/’23)
• High Performance Computing I (Winter term: '18/'19, '19/'20, '20/'21)
• High Performance Computing II (Summer term: 2019, 2020)

Research Fields:

• N-widths of parametric PDEs.
• Approximation methods using ridge functions.
• Reduced Basis Methods for parametric PDEs.
• Numerical methods for Hamilton-Jacobi-Bellman equations.

1. Decay of the Kolmogorov N-width for wave problems, Constantin Greif and Karsten Urban, Appl. Math. Lett., 2019. (arXiv)
2. Linear/Ridge expansions: Enhancing linear approximations by ridge functions, Constantin Greif, Philipp Junk, and Karsten Urban, Advances in Computational Mathematics, 2022. (arXiv)
3. The Kolmogorov N-width for linear transport: Exact representation and the influence of the data, Florian Arbes, Constantin Greif, and Karsten Urban, 2023. (arXiv)