About

I am a Chu Assistant Professor of Applied Mathematics at Columbia University.

Previously, I was a PhD student at the University of Washington, advised by Randall J. LeVeque and Gunther Uhlmann.

[CV, updated 2019/01/20].

Research Interests

My interests are in the numerical analysis of partial differential equations (PDEs) and inverse problems

• Model reduction of parametrized nonlinear hyperbolic systems of conservation laws
• Uncertainty quantification (UQ) and inverse problems involving nonlinear hyperbolic PDEs
• Approximate discrete Radon transform (ADRT) and its applications
• Applications in geophysics and medical imaging: probabilistic tsunami hazard assessment, storm surge prediction, coupled-physics imaging

Publications, Preprints and Numerical Software

Model reduction of a parametrized scalar hyperbolic conservation law using displacement interpolation
D. Rim and K.T Mandli
Preprint (2018) [arXiv] [github]

Dimensional splitting of hyperbolic partial differential equations using the Radon transform
D. Rim
SIAM J. Sci. Comput. (2018) 40 (6), A4184–A4207. [doi][arXiv]

Displacement interpolation using monotone rearrangement
D. Rim and K.T Mandli
SIAM/ASA J. Uncertainty Quantification (2018) 6 (4), 1503-1531 [doi][arXiv] [github]

Imaging of isotropic and anisotropic conductivities from power densities in three dimensions
F. Monard and D. Rim
Inverse Probl. (2018) 34 (7), 075005 [doi][arXiv] [github]

Transport reversal for model reduction of hyperbolic partial differential equations
D. Rim, S. Moe, and R. J. LeVeque
SIAM/ASA J. Uncertainty Quantification (2018) 6 (1), 118-150 [doi][arXiv]

An elementary proof that symplectic matrices have determinant one
D. Rim
Adv. Dyn. Syst. Appl. (2017) 12 (1), 15-20 [arXiv]

Generating random earthquake events for probabilistic tsunami hazard assessment (PTHA)
R. J. LeVeque, K. Waagan, F. I. Gonzalez, D. Rim, and G. Lin
Pure Appl. Geophys. (2016) 173: 3671 [doi][arXiv]

Explicit error estimates for Courant, Crouzeix-Raviart and Raviart-Thomas finite element methods
C. Carstensen, J. Gedicke, and D. Rim
J. Comput. Math. 30 (2012) no. 4, 337-353 [doi] [Preprint]

More Numerical Software

For a full list of relevant numerical softwares, please visit my github page.
See also: Top ten reasons to not share your code (and why you should anyway).

Contact

_{500 W. 120th St 200 S.W. Mudd
Mail Code: 4701
Applied Physics and Applied Mathematics
Columbia University
New York, NY, USA, 10027-6623
Email: dr2965@columbia.edu}