Jeffrey Galkowski

28 papers Journal 28

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Convergence Theory for Two-Level Hybrid Schwarz Preconditioners for High-Frequency Helmholtz Problems. SIAM J. Numer. Anal. Jeffrey Galkowski, Euan A. Spence
2025	J	`jnl`	Convergence theory for two-level hybrid Schwarz preconditioners for high-frequency Helmholtz problems. CoRR Jeffrey Galkowski, Euan A. Spence
2025	J	`jnl`	Helmholtz boundary integral methods and the pollution effect. CoRR Jeffrey Galkowski, Manas Rachh, Euan A. Spence
2025	J	`jnl`	Lower bounds for piecewise polynomial approximations of oscillatory functions. J. Approx. Theory Jeffrey Galkowski
2025	J	`jnl`	Non-uniform finite-element meshes defined by ray dynamics for Helmholtz problems. CoRR Martin Averseng, Jeffrey Galkowski, Euan A. Spence
2025	J	`jnl`	Numerical analysis of the high-frequency Helmholtz equation using semiclassical analysis. CoRR Jeffrey Galkowski, Euan A. Spence
2025	J	`jnl`	Sharp Preasymptotic Error Bounds for the Helmholtz \(\boldsymbol{h}\)-FEM. SIAM J. Numer. Anal. Jeffrey Galkowski, Euan A. Spence
2024	J	`jnl`	Convergence of overlapping domain decomposition methods with PML transmission conditions applied to nontrapping Helmholtz problems. CoRR Jeffrey Galkowski, Shihua Gong, Ivan G. Graham, David Lafontaine, Euan A. Spence
2024	J	`jnl`	Helmholtz FEM solutions are locally quasi-optimal modulo low frequencies. Adv. Comput. Math. Martin Averseng, Jeffrey Galkowski, Euan A. Spence
2024	J	`jnl`	Schwarz methods with PMLs for Helmholtz problems: fast convergence at high frequency. CoRR Jeffrey Galkowski, Shihua Gong, Ivan G. Graham, David Lafontaine, Euan A. Spence
2024	J	`jnl`	Sharp error bounds for edge-element discretisations of the high-frequency Maxwell equations. CoRR Théophile Chaumont-Frelet, Jeffrey Galkowski, Euan A. Spence
2024	J	`jnl`	The Scattering Phase: Seen at Last. SIAM J. Appl. Math. Jeffrey Galkowski, Pierre Marchand, Jian Wang, Maciej Zworski
2023	J	`jnl`	Decompositions of High-Frequency Helmholtz Solutions via Functional Calculus, and Application to the Finite Element Method. SIAM J. Math. Anal. Jeffrey Galkowski, David Lafontaine, Euan A. Spence, Jared Wunsch
2023	J	`jnl`	Does the Helmholtz Boundary Element Method Suffer from the Pollution Effect? SIAM Rev. Jeffrey Galkowski, Euan A. Spence
2023	J	`jnl`	Helmholtz FEM solutions are locally quasi-optimal modulo low frequencies. CoRR Martin Averseng, Euan A. Spence, Jeffrey Galkowski
2023	J	`jnl`	Perfectly-Matched-Layer Truncation is Exponentially Accurate at High Frequency. SIAM J. Math. Anal. Jeffrey Galkowski, David Lafontaine, Euan A. Spence
2023	J	`jnl`	Sharp preasymptotic error bounds for the Helmholtz h-FEM. CoRR Jeffrey Galkowski, Euan A. Spence
2022	J	`jnl`	Applying GMRES to the Helmholtz equation with strong trapping: how does the number of iterations depend on the frequency? Adv. Comput. Math. Pierre Marchand, Jeffrey Galkowski, Euan A. Spence, Alastair Spence
2022	J	`jnl`	Lower bounds for piecewise polynomial approximations of oscillatory functions. CoRR Jeffrey Galkowski
2022	J	`jnl`	The Helmholtz boundary element method does not suffer from the pollution effect. CoRR Jeffrey Galkowski, Euan A. Spence
2022	J	`jnl`	The hp-FEM applied to the Helmholtz equation with PML truncation does not suffer from the pollution effect. CoRR Jeffrey Galkowski, David Lafontaine, Euan A. Spence, Jared Wunsch
2021	J	`jnl`	Applying GMRES to the Helmholtz equation with strong trapping: how does the number of iterations depend on the frequency? CoRR Pierre Marchand, Jeffrey Galkowski, Alastair Spence, Euan A. Spence
2021	J	`jnl`	Eigenvalues of the Truncated Helmholtz Solution Operator under Strong Trapping. SIAM J. Math. Anal. Jeffrey Galkowski, Pierre Marchand, Euan A. Spence
2021	J	`jnl`	Eigenvalues of the truncated Helmholtz solution operator under strong trapping. CoRR Jeffrey Galkowski, Pierre Marchand, Euan A. Spence
2021	J	`jnl`	High-frequency estimates on boundary integral operators for the Helmholtz exterior Neumann problem. CoRR Jeffrey Galkowski, Pierre Marchand, Euan A. Spence
2021	J	`jnl`	Local absorbing boundary conditions on fixed domains give order-one errors for high-frequency waves. CoRR Jeffrey Galkowski, David Lafontaine, Euan A. Spence
2021	J	`jnl`	Perfectly-matched-layer truncation is exponentially accurate at high frequency. CoRR Jeffrey Galkowski, David Lafontaine, Euan A. Spence
2019	J	`jnl`	Wavenumber-explicit analysis for the Helmholtz Numerische Mathematik Jeffrey Galkowski, Eike Hermann Müller, Euan A. Spence