Othmar Koch - RankMe

48 papers B 3Misc 2Journal 41Unranked 2

Year	Rank	Type	Title / Venue / Authors
2023	J	`jnl`	Adaptive exponential multi-operator splitting for MHD. CoRR Othmar Koch, Koray Acar, Winfried Auzinger, Friedrich Kupka, Benedikt Moser
2021	J	`jnl`	Efficient Adaptive Computation of the Dynamics of Mott Transistors. CoRR Winfried Auzinger, Lukas Einramhof, Karsten Held, Anna Kauch, Othmar Koch, Clemens Watzenböck, Ewa Weinmüller
2021	J	`jnl`	Efficient Magnus-type integrators for solar energy conversion in Hubbard models. CoRR Winfried Auzinger, Juliette Dubois, Karsten Held, Harald Hofstätter, Tobias Jawecki, Anna Kauch, Othmar Koch, Karolina Kropielnicka, Pranav Singh, Clemens Watzenböck
2019	—	`conf`	Adaptive Exponential Integrators for MCTDHF. LSSC Winfried Auzinger, Alexander Grosz, Harald Hofstätter, Othmar Koch
2019	B	`conf`	An Algorithm for Computing Coefficients of Words in Expressions Involving Exponentials and Its Application to the Construction of Exponential Integrators. CASC Harald Hofstätter, Winfried Auzinger, Othmar Koch
2019	J	`jnl`	An Algorithm for Computing Coefficients of Words in Expressions Involving Exponentials and its Application to the Construction of Exponential Integrators. CoRR Harald Hofstätter, Winfried Auzinger, Othmar Koch
2019	J	`jnl`	Non-existence of generalized splitting methods with positive coefficients of order higher than four. Appl. Math. Lett. Winfried Auzinger, Harald Hofstätter, Othmar Koch
2019	J	`jnl`	Non-satisfiability of a positivity condition for commutator-free exponential integrators of order higher than four. Numerische Mathematik Harald Hofstätter, Othmar Koch
2019	J	`jnl`	Practical splitting methods for the adaptive integration of nonlinear evolution equations. Part II: Comparisons of local error estimation and step-selection strategies for nonlinear Schrödinger and wave equations. Comput. Phys. Commun. Winfried Auzinger, Iva Brezinová, Harald Hofstätter, Othmar Koch, Michael Quell
2019	J	`jnl`	Symmetrized local error estimators for time-reversible one-step methods in nonlinear evolution equations. J. Comput. Appl. Math. Winfried Auzinger, Harald Hofstätter, Othmar Koch
2019	J	`jnl`	Time adaptive Zassenhaus splittings for the Schrödinger equation in the semiclassical regime. Appl. Math. Comput. Winfried Auzinger, Harald Hofstätter, Othmar Koch, Karolina Kropielnicka, Pranav Singh
2018	J	`jnl`	An improved local error estimator for symmetric time-stepping schemes. Appl. Math. Lett. Winfried Auzinger, Othmar Koch
2017	J	`jnl`	Adaptive high-order splitting methods for systems of nonlinear evolution equations with periodic boundary conditions. Numer. Algorithms Winfried Auzinger, Othmar Koch, Michael Quell
2016	J	`jnl`	Adaptive splitting methods for nonlinear Schrödinger equations in the semiclassical regime. Numer. Algorithms Winfried Auzinger, Thomas Kassebacher, Othmar Koch, Mechthild Thalhammer
2016	B	`conf`	Setup of Order Conditions for Splitting Methods. CASC Winfried Auzinger, Wolfgang Herfort, Harald Hofstätter, Othmar Koch
2016	B	`conf`	Symbolic Manipulation of Flows of Nonlinear Evolution Equations, with Application in the Analysis of Split-Step Time Integrators. CASC Winfried Auzinger, Harald Hofstätter, Othmar Koch
2015	J	`jnl`	Defect-based local error estimators for high-order splitting methods involving three linear operators. Numer. Algorithms Winfried Auzinger, Othmar Koch, Mechthild Thalhammer
2015	J	`jnl`	Defect-based local error estimators for splitting methods, with application to Schrödinger equations, Part III: The nonlinear case. J. Comput. Appl. Math. Winfried Auzinger, Harald Hofstätter, Othmar Koch, Mechthild Thalhammer
2014	J	`jnl`	An approximate eigensolver for self-consistent field calculations. Numer. Algorithms Harald Hofstätter, Othmar Koch
2014	J	`jnl`	Asymptotical computations for a model of flow in saturated porous media. Appl. Math. Comput. Pierluigi Amodio, C. J. Budd, Othmar Koch, Giuseppina Settanni, Ewa Weinmüller
2014	J	`jnl`	Convergence analysis of high-order time-splitting pseudo-spectral methods for rotational Gross-Pitaevskii equations. Numerische Mathematik Harald Hofstätter, Othmar Koch, Mechthild Thalhammer
2014	J	`jnl`	Defect-based local error estimators for splitting methods, with application to Schrödinger equations, Part II. Higher-order methods for linear problems. J. Comput. Appl. Math. Winfried Auzinger, Othmar Koch, Mechthild Thalhammer
2014	J	`jnl`	Optimized strong stability preserving IMEX Runge-Kutta methods. J. Comput. Appl. Math. Inmaculada Higueras, Natalie Happenhofer, Othmar Koch, Friedrich Kupka
2013	J	`jnl`	Convergence of collocation schemes for boundary value problems in nonlinear index 1 DAEs with a singular point. Math. Comput. Alexander Dick, Othmar Koch, Roswitha März, Ewa Weinmüller
2012	J	`jnl`	Defect-based local error estimators for splitting methods, with application to Schrödinger equations, Part I: The linear case. J. Comput. Appl. Math. Winfried Auzinger, Othmar Koch, Mechthild Thalhammer
2012	J	`jnl`	Total-variation-diminishing implicit-explicit Runge-Kutta methods for the simulation of double-diffusive convection in astrophysics. J. Comput. Phys. Friedrich Kupka, Natalie Happenhofer, Inmaculada Higueras, Othmar Koch
2010	J	`jnl`	Collocation methods for index 1 DAEs with a singularity of the first kind. Math. Comput. Othmar Koch, Roswitha März, Dirk Praetorius, Ewa Weinmüller
2010	J	`jnl`	Dynamical Tensor Approximation. SIAM J. Matrix Anal. Appl. Othmar Koch, Christian Lubich
2010	J	`jnl`	Hierarchical Matrices in Computations of Electron Dynamics. J. Sci. Comput. Othmar Koch, Christopher Ede, Gerald Jordan, Armin Scrinzi
2010	J	`jnl`	Iterative diagonalization in augmented plane wave based methods in electronic structure calculations. J. Comput. Phys. Peter Blaha, Harald Hofstätter, Othmar Koch, R. Laskowski, K. Schwarz
2010	J	`jnl`	Numerical solution of singular ODE eigenvalue problems in electronic structure computations. Comput. Phys. Commun. Robert Hammerling, Othmar Koch, Christa Simon, Ewa Weinmüller
2007	J	`jnl`	Dynamical Low-Rank Approximation. SIAM J. Matrix Anal. Appl. Othmar Koch, Christian Lubich
2007	J	`jnl`	Efficient Numerical Solution of the Density Profile Equation in Hydrodynamics. J. Sci. Comput. G. Kitzhofer, Othmar Koch, Pedro Miguel Lima, Ewa Weinmüller
2007	J	`jnl`	Efficient Numerical Solution of the Density Profile Equation in Hydrodynamics. J. Sci. Comput. G. Kitzhofer, Othmar Koch, Pedro Miguel Lima, Ewa Weinmüller
2006	J	`jnl`	Analysis of a defect correction method for geometric integrators. Numer. Algorithms Harald Hofstätter, Othmar Koch
2006	J	`jnl`	Approximation of the time-dependent electronic Schrödinger equation by MCTDHF. Appl. Math. Comput. Othmar Koch, Wolfgang Kreuzer, Armin Scrinzi
2006	J	`jnl`	Computation of Self-similar Solution Profiles for the Nonlinear Schrödinger Equation. Computing C. J. Budd, Othmar Koch, Ewa Weinmüller
2005	J	`jnl`	Analysis of a New Error Estimate for Collocation Methods Applied to Singular Boundary Value Problems. SIAM J. Numer. Anal. Winfried Auzinger, Othmar Koch, Ewa Weinmüller
2005	J	`jnl`	Asymptotically correct error estimation for collocation methods applied to singular boundary value problems. Numerische Mathematik Othmar Koch
2005	J	`jnl`	New a posteriori error estimates for singular boundary value problems. Numer. Algorithms Winfried Auzinger, Othmar Koch, Dirk Praetorius, Ewa Weinmüller
2004	J	`jnl`	Analytical and numerical treatment of a singular initial value problem in avalanche modeling. Appl. Math. Comput. Othmar Koch, Ewa Weinmüller
2003	J	`jnl`	A Collocation Code for Singular Boundary Value Problems in Ordinary Differential Equations. Numer. Algorithms Winfried Auzinger, Günter Kneisl, Othmar Koch, Ewa Weinmüller
2003	—	`conf`	Collocation Methods for Boundary Value Problems with an Essential Singularity. LSSC Winfried Auzinger, Othmar Koch, Ewa Weinmüller
2003	J	`jnl`	The convergence of shooting methods for singular boundary value problems. Math. Comput. Othmar Koch, Ewa Weinmüller
2003	Misc	`conf`	Traffic and road planning simulation: modeling ambulance service of the austrian Red Cross. WSC Othmar Koch, K. Heinz Weigl
2002	J	`jnl`	Efficient Collocation Schemes for Singular Boundary Value Problems. Numer. Algorithms Winfried Auzinger, Othmar Koch, Ewa Weinmüller
2001	J	`jnl`	Iterated Defect Correction for the Solution of Singular Initial Value Problems. SIAM J. Numer. Anal. Othmar Koch, Ewa B. Weinmüller
2001	Misc	`conf`	Theory and Solution Techniques for Singular Boundary Value Problems in Ordinary Differential Equations. PPAM Winfried Auzinger, Othmar Koch, Ewa Weinmüller