Oliver A. Krzysik

25 papers Journal 25

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Parallel-in-iteration optimization using multigrid reduction-in-time. CoRR G. H. M. Araújo, Oliver A. Krzysik, Hans De Sterck
2025	J	`jnl`	Generalized Optimal AMG Convergence Theory for Stokes Equations Using Smooth Aggregation and Vanka Relaxation Strategies. CoRR Ahsan Ali, James J. Brannick, Karsten Kahl, Oliver A. Krzysik, Jacob B. Schroder, Ben S. Southworth, Alexey Voronin
2025	J	`jnl`	Multigrid Reduction-In-Time Convergence for Advection Problems: A Fourier Analysis Perspective. Numer. Linear Algebra Appl. Hans De Sterck, Stephanie Friedhoff, Oliver A. Krzysik, Scott P. MacLachlan
2025	J	`jnl`	Optimal transfer operators in algebraic two-level methods for nonsymmetric and indefinite problems. CoRR Oliver A. Krzysik, Ben S. Southworth, Golo A. Wimmer
2025	J	`jnl`	Overlapping Schwarz methods are not anisotropy-robust multigrid smoothers. CoRR Oliver A. Krzysik, Ben S. Southworth, Bobby Philip
2025	J	`jnl`	Parallel-in-Time Solution of Scalar Nonlinear Conservation Laws. SIAM J. Sci. Comput. Oliver A. Krzysik, Hans De Sterck, Robert D. Falgout, Jacob B. Schroder
2024	J	`jnl`	Anderson Acceleration as a Krylov Method with Application to Convergence Analysis. J. Sci. Comput. Hans De Sterck, Yunhui He, Oliver A. Krzysik
2024	J	`jnl`	Constrained Local Approximate Ideal Restriction for Advection-Diffusion Problems. SIAM J. Sci. Comput. Ahsan Ali, James J. Brannick, Karsten Kahl, Oliver A. Krzysik, Jacob B. Schroder, Ben S. Southworth
2024	J	`jnl`	First-order PDES for Graph Neural Networks: Advection And Burgers Equation Models. CoRR Yifan Qu, Oliver A. Krzysik, Hans De Sterck, Omer Ege Kara
2024	J	`jnl`	Generalized Optimal AMG Convergence Theory for Nonsymmetric and Indefinite Problems. CoRR Ahsan Ali, James J. Brannick, Karsten Kahl, Oliver A. Krzysik, Jacob B. Schroder, Ben S. Southworth
2024	J	`jnl`	Parallel-in-time solution of hyperbolic PDE systems via characteristic-variable block preconditioning. CoRR Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik, Jacob B. Schroder
2024	J	`jnl`	Parallel-in-time solution of scalar nonlinear conservation laws. CoRR Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik, Jacob B. Schroder
2023	J	`jnl`	Constrained Local Approximate Ideal Restriction for Advection-Diffusion Problems. CoRR Ahsan Ali, James J. Brannick, Karsten Kahl, Oliver A. Krzysik, Jacob B. Schroder, Ben S. Southworth
2023	J	`jnl`	Efficient Multigrid Reduction-in-Time for Method-of-Lines Discretizations of Linear Advection. J. Sci. Comput. Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik, Jacob B. Schroder
2023	J	`jnl`	Fast Multigrid Reduction-in-Time for Advection via Modified Semi-Lagrangian Coarse-Grid Operators. SIAM J. Sci. Comput. Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik
2023	J	`jnl`	On the convergence of restarted Anderson acceleration for symmetric linear systems. CoRR Hans De Sterck, Oliver A. Krzysik, Adam Smith
2022	J	`jnl`	Efficient multigrid reduction-in-time for method-of-lines discretizations of linear advection. CoRR Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik, Jacob B. Schroder
2022	J	`jnl`	Fast Solution of Fully Implicit Runge-Kutta and Discontinuous Galerkin in Time for Numerical PDEs, Part I: the Linear Setting. SIAM J. Sci. Comput. Ben S. Southworth, Oliver A. Krzysik, Will Pazner, Hans De Sterck
2022	J	`jnl`	Fast Solution of Fully Implicit Runge-Kutta and Discontinuous Galerkin in Time for Numerical PDEs, Part II: Nonlinearities and DAEs. SIAM J. Sci. Comput. Ben S. Southworth, Oliver A. Krzysik, Will Pazner
2022	J	`jnl`	Fast multigrid reduction-in-time for advection via modified semi-Lagrangian coarse-grid operators. CoRR Hans De Sterck, Robert D. Falgout, Oliver A. Krzysik
2022	J	`jnl`	Multigrid reduction-in-time convergence for advection problems: A Fourier analysis perspective. CoRR Hans De Sterck, Stephanie Friedhoff, Oliver A. Krzysik, Scott P. MacLachlan
2021	J	`jnl`	Fast parallel solution of fully implicit Runge-Kutta and discontinuous Galerkin in time for numerical PDEs, Part I: the linear setting. CoRR Ben S. Southworth, Oliver A. Krzysik, Will Pazner, Hans De Sterck
2021	J	`jnl`	Fast parallel solution of fully implicit Runge-Kutta and discontinuous Galerkin in time for numerical PDEs, Part II: nonlinearities and DAEs. CoRR Ben S. Southworth, Oliver A. Krzysik, Will Pazner
2021	J	`jnl`	Optimizing multigrid reduction-in-time and Parareal coarse-grid operators for linear advection. Numer. Linear Algebra Appl. Hans De Sterck, Robert D. Falgout, Stephanie Friedhoff, Oliver A. Krzysik, Scott P. MacLachlan
2019	J	`jnl`	Optimizing MGRIT and Parareal coarse-grid operators for linear advection. CoRR Hans De Sterck, Robert D. Falgout, Stephanie Friedhoff, Oliver A. Krzysik, Scott P. MacLachlan