A solution to the stability issues with block norm summation by parts operators. - Ken Mattsson; Martin Almquist (J. Comput. Phys., 2013)

High-fidelity numerical solution of the time-dependent Dirac equation. - Martin Almquist; Ken Mattsson; Tomas Edvinsson (J. Comput. Phys., 2014)

Optimal diagonal-norm SBP operators. - Ken Mattsson; Martin Almquist; Mark H. Carpenter (J. Comput. Phys., 2014)

Atmospheric Sound Propagation Over Large-Scale Irregular Terrain. - Martin Almquist; Ilkka Karasalo; Ken Mattsson (J. Sci. Comput., 2014)

A high-order accurate embedded boundary method for first order hyperbolic equations. - Ken Mattsson; Martin Almquist (J. Comput. Phys., 2017)

MultiLevel Local Time-Stepping Methods of Runge-Kutta-type for Wave Equations. - Martin Almquist; Michaela Mehlin (SIAM J. Sci. Comput., 2017)

Boundary optimized diagonal-norm SBP operators. - Ken Mattsson; Martin Almquist; Edwin van der Weide (J. Comput. Phys., 2018)

Non-stiff narrow-stencil finite difference approximations of the Laplacian on curvilinear multiblock grids. - Martin Almquist; Eric M. Dunham (CoRR, 2019)

Order-Preserving Interpolation for Summation-by-Parts Operators at Nonconforming Grid Interfaces. - Martin Almquist; Siyang Wang 003; Jonatan Werpers (SIAM J. Sci. Comput., 2019)

Non-stiff boundary and interface penalties for narrow-stencil finite difference approximations of the Laplacian on curvilinear multiblock grids. - Martin Almquist; Eric M. Dunham (J. Comput. Phys., 2020)

Elastic wave propagation in anisotropic solids using energy-stable finite differences with weakly enforced boundary and interface conditions. - Martin Almquist; Eric M. Dunham (J. Comput. Phys., 2021)

Boundary-optimized summation-by-parts operators for finite difference approximations of second derivatives with variable coefficients. - Vidar Stiernström; Martin Almquist; Ken Mattsson (J. Comput. Phys., 2023)

Simulation of flexural-gravity wave propagation for elastic plates in shallow water using an energy-stable finite difference method with weakly enforced boundary and interface conditions. - Nurbek Tazhimbetov; Martin Almquist; Jonatan Werpers; Eric M. Dunham (J. Comput. Phys., 2023)

Adjoint-based inversion for stress and frictional parameters in earthquake modeling. - Vidar Stiernström; Martin Almquist; Eric M. Dunham (J. Comput. Phys., 2024)

Approximating Moving Point Sources in Hyperbolic Partial Differential Equations. - Ylva Ljungberg Rydin; Martin Almquist (J. Sci. Comput., 2025)