Alexander Ostermann

Orcid: 0000-0003-0194-2481

According to our database1, Alexander Ostermann authored at least 78 papers between 1977 and 2024.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Accelerating Exponential Integrators to Efficiently Solve Semilinear Advection-Diffusion-Reaction Equations.
SIAM J. Sci. Comput., 2024

The exponential trapezoidal method for semilinear integro-differential equations.
CoRR, 2024

Filtered Lie-Trotter splitting for the "good" Boussinesq equation: low regularity error estimates.
CoRR, 2024

2023
A robust and conservative dynamical low-rank algorithm.
J. Comput. Phys., July, 2023

Explicit Exponential Runge-Kutta Methods for Semilinear Integro-Differential Equations.
SIAM J. Numer. Anal., June, 2023

Low regularity error estimates for high dimensional nonlinear Schrödinger equations.
CoRR, 2023

Low regularity full error estimates for the cubic nonlinear Schrödinger equation.
CoRR, 2023

Accelerating exponential integrators to efficiently solve advection-diffusion-reaction equations.
CoRR, 2023

Low regularity error estimates for the time integration of 2D NLS.
CoRR, 2023

2022
A pseudo-spectral Strang splitting method for linear dispersive problems with transparent boundary conditions.
Numerische Mathematik, 2022

Error estimates at low regularity of splitting schemes for NLS.
Math. Comput., 2022

Exponential Integrators for Second-Order in Time Partial Differential Equations.
J. Sci. Comput., 2022

A Fully Discrete Low-Regularity Integrator for the Nonlinear Schrödinger Equation.
J. Sci. Comput., 2022

A <i>μ</i>-mode integrator for solving evolution equations in Kronecker form.
J. Comput. Phys., 2022

2021
A Preconditioning Technique for an All-at-once System from Volterra Subdiffusion Equations with Graded Time Steps.
J. Sci. Comput., 2021

Fast IIF-WENO Method on Non-uniform Meshes for Nonlinear Space-Fractional Convection-Diffusion-Reaction Equations.
J. Sci. Comput., 2021

A low-rank Lie-Trotter splitting approach for nonlinear fractional complex Ginzburg-Landau equations.
J. Comput. Phys., 2021

An accurate and time-parallel rational exponential integrator for hyperbolic and oscillatory PDEs.
J. Comput. Phys., 2021

A pseudo-spectral splitting method for linear dispersive problems with transparent boundary conditions.
J. Comput. Appl. Math., 2021

Error estimates of a Fourier integrator for the cubic Schrödinger equation at low regularity.
Found. Comput. Math., 2021

An exponential integrator/WENO discretization for sonic-boom simulation on modern computer hardware.
Comput. Phys. Commun., 2021

A second order low-regularity integrator for the nonlinear Schrödinger equation.
CoRR, 2021

A μ-mode integrator for solving evolution equations in Kronecker form.
CoRR, 2021

Fast numerical schemes for nonlinear space-fractional multidelay reaction-diffusion equations by implicit integration factor methods.
Appl. Math. Comput., 2021

2020
On the convergence of Lawson methods for semilinear stiff problems.
Numerische Mathematik, 2020

A low-rank projector-splitting integrator for the Vlasov-Maxwell equations with divergence correction.
J. Comput. Phys., 2020

An efficient second-order energy stable BDF scheme for the space fractional Cahn-Hilliard equation.
CoRR, 2020

A parallel preconditioning technique for an all-at-once system from subdiffusion equations with variable time steps.
CoRR, 2020

Fourier integrator for periodic NLS: low regularity estimates via discrete Bourgain spaces.
CoRR, 2020

2019
Convergence of a Low-Rank Lie-Trotter Splitting for Stiff Matrix Differential Equations.
SIAM J. Numer. Anal., 2019

A Fourier Integrator for the Cubic Nonlinear Schrödinger Equation with Rough Initial Data.
SIAM J. Numer. Anal., 2019

Two exponential-type integrators for the "good" Boussinesq equation.
Numerische Mathematik, 2019

2018
Analysis for Computer Scientists - Foundations, Methods, and Algorithms, Second Edition
Undergraduate Topics in Computer Science, Springer, ISBN: 978-3-319-91154-0, 2018

Numerical low-rank approximation of matrix differential equations.
J. Comput. Appl. Math., 2018

Low Regularity Exponential-Type Integrators for Semilinear Schrödinger Equations.
Found. Comput. Math., 2018

Magnus integrators on multicore CPUs and GPUs.
Comput. Phys. Commun., 2018

A split step Fourier/discontinuous Galerkin scheme for the Kadomtsev-Petviashvili equation.
Appl. Math. Comput., 2018

Efficient boundary corrected Strang splitting.
Appl. Math. Comput., 2018

2017
A splitting approach for the magnetic Schrödinger equation.
J. Comput. Appl. Math., 2017

Splitting methods for constrained diffusion-reaction systems.
Comput. Math. Appl., 2017

2016
Overcoming Order Reduction in Diffusion-Reaction Splitting. Part 2: Oblique Boundary Conditions.
SIAM J. Sci. Comput., 2016

The Leja Method Revisited: Backward Error Analysis for the Matrix Exponential.
SIAM J. Sci. Comput., 2016

Evaluation of the partitioned global address space (PGAS) model for an inviscid Euler solver.
Parallel Comput., 2016

The error structure of the Douglas-Rachford splitting method for stiff linear problems.
J. Comput. Appl. Math., 2016

Parallel exponential Rosenbrock methods.
Comput. Math. Appl., 2016

2015
Overcoming Order Reduction in Diffusion-Reaction Splitting. Part 1: Dirichlet Boundary Conditions.
SIAM J. Sci. Comput., 2015

A splitting approach for the Kadomtsev-Petviashvili equation.
J. Comput. Phys., 2015

Fast algorithms for morphological operations using run-length encoded binary images.
CoRR, 2015

On the error propagation of semi-Lagrange and Fourier methods for advection problems.
Comput. Math. Appl., 2015

2014
Convergence Analysis of a Discontinuous Galerkin/Strang Splitting Approximation for the Vlasov-Poisson Equations.
SIAM J. Numer. Anal., 2014

Convergence Analysis of Strang Splitting for Vlasov-Type Equations.
SIAM J. Numer. Anal., 2014

A Moment-Matching Arnoldi Iteration for Linear Combinations of φ Functions.
SIAM J. Matrix Anal. Appl., 2014

Reprint of "Explicit exponential Runge-Kutta methods of high order for parabolic problems".
J. Comput. Appl. Math., 2014

Exponential Rosenbrock methods of order five - construction, analysis and numerical comparisons.
J. Comput. Appl. Math., 2014

Explicit exponential Runge-Kutta methods of high order for parabolic problems.
J. Comput. Appl. Math., 2014

An almost symmetric Strang splitting scheme for the construction of high order composition methods.
J. Comput. Appl. Math., 2014

An almost symmetric Strang splitting scheme for nonlinear evolution equations.
Comput. Math. Appl., 2014

2013
Meshfree Exponential Integrators.
SIAM J. Sci. Comput., 2013

Stability of Exponential Operator Splitting Methods for Noncontractive Semigroups.
SIAM J. Numer. Anal., 2013

Exponential B-Series: The Stiff Case.
SIAM J. Numer. Anal., 2013

Exponential Taylor methods: Analysis and implementation.
Comput. Math. Appl., 2013

Exponential integrators on graphic processing units.
Proceedings of the International Conference on High Performance Computing & Simulation, 2013

2012
Stiff Order Conditions for Exponential Runge-Kutta Methods of Order Five.
Proceedings of the Modeling, Simulation and Optimization of Complex Processes, 2012

2011
Analysis for Computer Scientists - Foundations, Methods, and Algorithms.
Undergraduate Topics in Computer Science, Springer, ISBN: 978-0-85729-446-3, 2011

2010
Exponential integrators.
Acta Numer., 2010

2009
Exponential splitting for unbounded operators.
Math. Comput., 2009

A minimisation approach for computing the ground state of Gross-Pitaevskii systems.
J. Comput. Phys., 2009

2008
Exponential Rosenbrock-Type Methods.
SIAM J. Numer. Anal., 2008

Finite Element Runge-Kutta Discretizations of Porous Medium-Type Equations.
SIAM J. Numer. Anal., 2008

Dimension splitting for evolution equations.
Numerische Mathematik, 2008

2005
Explicit Exponential Runge-Kutta Methods for Semilinear Parabolic Problems.
SIAM J. Numer. Anal., 2005

2002
Backward Euler discretization of fully nonlinear parabolic problems.
Math. Comput., 2002

Long-term stability of variable stepsize approximations of semigroups.
Math. Comput., 2002

2000
Shadowing for Nonautonomous Parabolic Problems with Applications to Long-Time Error Bounds.
SIAM J. Numer. Anal., 2000

1998
Hopf bifurcation of reaction-diffusion and Navier-Stokes equations under discretization.
Numerische Mathematik, 1998

1990
Continuous extensions of Rosenbrock-type methods.
Computing, 1990

1986
The solution of a combustion problem with Rosenbrock methods.
ACM Trans. Math. Softw., 1986

1977
Hermitesche Differenzenverfahren zur Approximation der Lösung von Differentialgleichungen der Form<i>u</i><sub><i>xy</i></sub>=<i>f(x, y, u, u</i><sub><i>x</i></sub>, <i>u</i><sub><i>y</i></sub>).
Computing, 1977


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