Alex H. Barnett

57 papers Journal 56Unranked 1

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A fast algorithm for the wave equation using time-windowed Fourier projection. J. Comput. Phys. Nour G. Al Hassanieh, Alex H. Barnett, Leslie Greengard
2026	J	`jnl`	The peak heat flux conjecture for the first Dirichlet eigenmode of convex planar domains. CoRR Zijian Wang, Jeremy G. Hoskins, Manas Rachh, Alex H. Barnett
2025	J	`jnl`	A fast algorithm for the wave equation using time-windowed Fourier projection. CoRR Nour G. Al Hassanieh, Alex H. Barnett, Leslie Greengard
2025	J	`jnl`	A fully adaptive, high-order, fast Poisson solver for complex two-dimensional geometries. CoRR Daniel Fortunato, David B. Stein, Alex H. Barnett
2025	J	`jnl`	A method of fundamental solutions for large-scale 3D elastance and mobility problems. Adv. Comput. Math. Anna Broms, Alex H. Barnett, Anna-Karin Tornberg
2025	J	`jnl`	Accelerating Fast Ewald Summation with Prolates for Molecular Dynamics Simulations. CoRR Jiuyang Liang, Libin Lu, Alex H. Barnett, Leslie Greengard, Shidong Jiang
2025	J	`jnl`	Accurate close interactions of Stokes spheres using lubrication-adapted image systems. J. Comput. Phys. Anna Broms, Alex H. Barnett, Anna-Karin Tornberg
2025	J	`jnl`	Equispaced Fourier Representations for Efficient Gaussian Process Regression from a Billion Data Points. SIAM/ASA J. Uncertain. Quantification Philip Greengard, Manas Rachh, Alex H. Barnett
2025	J	`jnl`	Stabilizing the singularity swap quadrature for near-singular line integrals. CoRR David Krantz, Alex H. Barnett, Anna-Karin Tornberg
2025	J	`jnl`	Superfast Direct Inversion of the Nonuniform Discrete Fourier Transform via Hierarchically Semiseparable Least Squares. SIAM J. Sci. Comput. Heather Wilber, Ethan N. Epperly, Alex H. Barnett
2025	J	`jnl`	Truncated kernel windowed Fourier projection: a fast algorithm for the 3D free-space wave equation. CoRR Nour G. Al Hassanieh, Alex H. Barnett, Leslie Greengard
2024	J	`jnl`	A Method of Fundamental Solutions for Large-Scale 3D Elastance and Mobility Problems. CoRR Anna Broms, Alex H. Barnett, Anna-Karin Tornberg
2024	J	`jnl`	A superfast direct inversion method for the nonuniform discrete Fourier transform. CoRR Heather Wilber, Ethan N. Epperly, Alex H. Barnett
2024	J	`jnl`	Accurate close interactions of Stokes spheres using lubrication-adapted image systems. CoRR Anna Broms, Alex H. Barnett, Anna-Karin Tornberg
2024	J	`jnl`	An Adaptive Spectral Method for Oscillatory Second-Order Linear ODEs with Frequency-Independent Cost. SIAM J. Numer. Anal. Fruzsina Julia Agocs, Alex H. Barnett
2024	J	`jnl`	Trapped acoustic waves and raindrops: High-order accurate integral equation method for localized excitation of a periodic staircase. J. Comput. Phys. Fruzsina Julia Agocs, Alex H. Barnett
2023	J	`jnl`	Trapped acoustic waves and raindrops: high-order accurate integral equation method for localized excitation of a periodic staircase. CoRR Fruzsina Julia Agocs, Alex H. Barnett
2023	J	`jnl`	Uniform approximation of common Gaussian process kernels using equispaced Fourier grids. CoRR Alex H. Barnett, Philip Greengard, Manas Rachh
2023	J	`jnl`	riccati: an adaptive, spectral solver for oscillatory ODEs. J. Open Source Softw. Fruzsina Julia Agocs, Alex H. Barnett
2022	J	`jnl`	An adaptive spectral method for oscillatory second-order linear ODEs with frequency-independent cost. CoRR Fruzsina Julia Agocs, Alex H. Barnett
2022	J	`jnl`	Automatic, high-order, and adaptive algorithms for Brillouin zone integration. CoRR Jason Kaye, Sophie Beck, Alex H. Barnett, Lorenzo Van Muñoz, Olivier Parcollet
2022	J	`jnl`	Eliminating artificial boundary conditions in time-dependent density functional theory using Fourier contour deformation. CoRR Jason Kaye, Alex H. Barnett, Leslie Greengard, Umberto De Giovannini, Angel Rubio
2022	J	`jnl`	Equispaced Fourier representations for efficient Gaussian process regression from a billion data points. CoRR Philip Greengard, Manas Rachh, Alex H. Barnett
2022	J	`jnl`	How Exponentially Ill-Conditioned Are Contiguous Submatrices of the Fourier Matrix? SIAM Rev. Alex H. Barnett
2022	J	`jnl`	Quadrature by fundamental solutions: kernel-independent layer potential evaluation for large collections of simple objects. Adv. Comput. Math. David B. Stein, Alex H. Barnett
2021	J	`jnl`	An integral equation method for the simulation of doubly-periodic suspensions of rigid bodies in a shearing viscous flow. J. Comput. Phys. Jun Wang, Ehssan Nazockdast, Alex H. Barnett
2021	J	`jnl`	Quadrature by fundamental solutions: kernel-independent layer potential evaluation for large collections of simple objects. CoRR David B. Stein, Alex H. Barnett
2021	J	`jnl`	Recovering Missing Data in Coherent Diffraction Imaging. SIAM J. Imaging Sci. David A. Barmherzig, Alex H. Barnett, Charles L. Epstein, Leslie F. Greengard, Jeremy F. Magland, Manas Rachh
2021	—	`conf`	cuFINUFFT: a load-balanced GPU library for general-purpose nonuniform FFTs. IPDPS Workshops Yu-Hsuan Shih, Garrett Wright, Joakim Andén, Johannes P. Blaschke, Alex H. Barnett
2021	J	`jnl`	cuFINUFFT: a load-balanced GPU library for general-purpose nonuniform FFTs. CoRR Yu-Hsuan Shih, Garrett Wright, Joakim Andén, Johannes P. Blaschke, Alex H. Barnett
2020	J	`jnl`	A high-order integral equation-based solver for the time-dependent Schrodinger equation. CoRR Jason Kaye, Alex H. Barnett, Leslie Greengard
2020	J	`jnl`	Aliasing error of the exp(β√(1-z CoRR Alex H. Barnett
2020	J	`jnl`	Efficient high-order accurate Fresnel diffraction via areal quadrature and the nonuniform FFT. CoRR Alex H. Barnett
2020	J	`jnl`	High-order discretization of a stable time-domain integral equation for 3D acoustic scattering. J. Comput. Phys. Alex H. Barnett, Leslie Greengard, Thomas M. Hagstrom
2020	J	`jnl`	How exponentially ill-conditioned are contiguous submatrices of the Fourier matrix? CoRR Alex H. Barnett
2020	J	`jnl`	Recovering missing data in coherent diffraction imaging. CoRR David Barmherzig, Alex H. Barnett, Charles L. Epstein, Leslie Greengard, Jeremy F. Magland, Manas Rachh
2020	J	`jnl`	Solution of Stokes flow in complex nonsmooth 2D geometries via a linear-scaling high-order adaptive integral equation scheme. J. Comput. Phys. Bowei Wu, Hai Zhu, Alex H. Barnett, Shravan K. Veerapaneni
2019	J	`jnl`	A Parallel Nonuniform Fast Fourier Transform Library Based on an "Exponential of Semicircle" Kernel. SIAM J. Sci. Comput. Alex H. Barnett, Jeremy F. Magland, Ludvig af Klinteberg
2019	J	`jnl`	Accurate quadrature of nearly singular line integrals in two and three dimensions by singularity swapping. CoRR Ludvig af Klinteberg, Alex H. Barnett
2019	J	`jnl`	An integral equation method for the simulation of doubly-periodic suspensions of rigid bodies in a shearing viscous flow. CoRR Jun Wang, Ehssan Nazockdast, Alex H. Barnett
2019	J	`jnl`	Solution of Stokes flow in complex nonsmooth 2D geometries via a linear-scaling high-order adaptive integral equation scheme. CoRR Bowei Wu, Hai Zhu, Alex H. Barnett, Shravan K. Veerapaneni
2018	J	`jnl`	A parallel non-uniform fast Fourier transform library based on an "exponential of semicircle" kernel. CoRR Alex H. Barnett, Jeremy F. Magland, Ludvig af Klinteberg
2017	J	`jnl`	Rapid Solution of the Cryo-EM Reconstruction Problem by Frequency Marching. SIAM J. Imaging Sci. Alex H. Barnett, Leslie Greengard, Andras Pataki, Marina Spivak
2016	J	`jnl`	A Fast Algorithm for Simulating Multiphase Flows Through Periodic Geometries of Arbitrary Shape. SIAM J. Sci. Comput. Gary R. Marple, Alex H. Barnett, Adrianna Gillman, Shravan K. Veerapaneni
2016	J	`jnl`	Efficient numerical solution of acoustic scattering from doubly-periodic arrays of axisymmetric objects. J. Comput. Phys. Yuxiang Liu, Alex H. Barnett
2015	J	`jnl`	A fast and robust solver for the scattering from a layered periodic structure containing multi-particle inclusions. J. Comput. Phys. Jun Lai, Motoki Kobayashi, Alex H. Barnett
2015	J	`jnl`	High-order boundary integral equation solution of high frequency wave scattering from obstacles in an unbounded linearly stratified medium. J. Comput. Phys. Alex H. Barnett, Bradley J. Nelson, J. Matthew Mahoney
2015	J	`jnl`	Robust and Efficient Solution of the Drum Problem via Nyström Approximation of the Fredholm Determinant. SIAM J. Numer. Anal. Lin Zhao, Alex H. Barnett
2015	J	`jnl`	Spectrally Accurate Quadratures for Evaluation of Layer Potentials Close to the Boundary for the 2D Stokes and Laplace Equations. SIAM J. Sci. Comput. Alex H. Barnett, Bowei Wu, Shravan K. Veerapaneni
2015	J	`jnl`	Validation of neural spike sorting algorithms without ground-truth information. CoRR Alex H. Barnett, Jeremy F. Magland, Leslie Greengard
2014	J	`jnl`	Evaluation of Layer Potentials Close to the Boundary for Laplace and Helmholtz Problems on Analytic Planar Domains. SIAM J. Sci. Comput. Alex H. Barnett
2014	J	`jnl`	High-order accurate methods for Nyström discretization of integral equations on smooth curves in the plane. Adv. Comput. Math. Sijia Hao, Alex H. Barnett, Per-Gunnar Martinsson, P. Young
2013	J	`jnl`	A fast direct solver for quasi-periodic scattering problems. J. Comput. Phys. Adrianna Gillman, Alex H. Barnett
2011	J	`jnl`	Boundary Quasi-Orthogonality and Sharp Inclusion Bounds for Large Dirichlet Eigenvalues. SIAM J. Numer. Anal. Alex H. Barnett, Andrew Hassell
2010	J	`jnl`	An Exponentially Convergent Nonpolynomial Finite Element Method for Time-Harmonic Scattering from Polygons. SIAM J. Sci. Comput. Alex H. Barnett, Timo Betcke
2009	J	`jnl`	Perturbative Analysis of the Method of Particular Solutions for Improved Inclusion of High-Lying Dirichlet Eigenvalues. SIAM J. Numer. Anal. Alex H. Barnett
2008	J	`jnl`	Stability and convergence of the method of fundamental solutions for Helmholtz problems on analytic domains. J. Comput. Phys. Alex H. Barnett, Timo Betcke