Sivaram Ambikasaran

27 papers Journal 27

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	A Hybrid Interpolation ACA Accelerated Method for Parabolic Boundary Integral Operators. SIAM J. Sci. Comput. Sivaram Ambikasaran, Ritesh Khan, Johannes Tausch, Sihao Wang
2025	J	`jnl`	Rank of Matrices Arising out of Singular Kernel Functions. CoRR Sumit Singh, Sivaram Ambikasaran
2024	J	`jnl`	A hybrid interpolation ACA accelerated method for parabolic boundary integral operators. CoRR Sivaram Ambikasaran, Ritesh Khan, Johannes Tausch, Sihao Wang
2024	J	`jnl`	Algebraic Inverse Fast Multipole Method: A fast direct solver that is better than HODLR based fast direct solver. J. Comput. Phys. Vaishnavi Gujjula, Sivaram Ambikasaran
2024	J	`jnl`	HODLR J. Comput. Phys. Ritesh Khan, V. A. Kandappan, Sivaram Ambikasaran
2024	J	`jnl`	HODLR3D: hierarchical matrices for N-body problems in three dimensions. Numer. Algorithms V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
2023	J	`jnl`	Algebraic Inverse Fast Multipole Method: A fast direct solver that is better than HODLR based fast direct solver. CoRR Vaishnavi Gujjula, Sivaram Ambikasaran
2023	J	`jnl`	HODLR2D: A New Class of Hierarchical Matrices. SIAM J. Sci. Comput. V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
2023	J	`jnl`	HODLR3D: Hierarchical matrices for N-body problems in three dimensions. CoRR V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
2023	J	`jnl`	New algebraic fast algorithms for N-body problems in two and three dimensions. CoRR Ritesh Khan, Sivaram Ambikasaran
2022	J	`jnl`	A new Directional Algebraic Fast Multipole Method based iterative solver for the Lippmann-Schwinger equation accelerated with HODLR preconditioner. CoRR Vaishnavi Gujjula, Sivaram Ambikasaran
2022	J	`jnl`	A new Nested Cross Approximation. CoRR Vaishnavi Gujjula, Sivaram Ambikasaran
2022	J	`jnl`	HODLR2D: A new class of Hierarchical matrices. CoRR V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
2022	J	`jnl`	Numerical rank of singular kernel functions. CoRR Ritesh Khan, V. A. Kandappan, Sivaram Ambikasaran
2019	J	`jnl`	HODLRlib: A Library for Hierarchical Matrices. J. Open Source Softw. Sivaram Ambikasaran, Karan Singh, Shyam Sankaran
2016	J	`jnl`	A fast block low-rank dense solver with applications to finite-element matrices. J. Comput. Phys. Amirhossein Aminfar, Sivaram Ambikasaran, Eric Darve
2016	J	`jnl`	Fast Direct Methods for Gaussian Processes. IEEE Trans. Pattern Anal. Mach. Intell. Sivaram Ambikasaran, Daniel Foreman-Mackey, Leslie Greengard, David W. Hogg, Michael O'Neil
2016	J	`jnl`	Fast, Adaptive, High-Order Accurate Discretization of the Lippmann-Schwinger Equation in Two Dimensions. SIAM J. Sci. Comput. Sivaram Ambikasaran, Carlos Borges, Lise-Marie Imbert-Gérard, Leslie Greengard
2015	J	`jnl`	Generalized Rybicki Press algorithm. Numer. Linear Algebra Appl. Sivaram Ambikasaran
2014	J	`jnl`	A Fast Block Low-Rank Dense Solver with Applications to Finite-Element Matrices. CoRR Amirhossein Aminfar, Sivaram Ambikasaran, Eric Darve
2014	J	`jnl`	A Fast Direct Solver for High Frequency Scattering from a Large Cavity in Two Dimensions. SIAM J. Sci. Comput. Jun Lai, Sivaram Ambikasaran, Leslie Greengard
2014	J	`jnl`	A Kalman filter powered by H CoRR Judith Y. Li, Sivaram Ambikasaran, Eric Darve, Peter K. Kitanidis
2014	J	`jnl`	A fast direct solver for high frequency scattering from a large cavity in two dimensions. CoRR Jun Lai, Sivaram Ambikasaran, Leslie Greengard
2014	J	`jnl`	Fast symmetric factorization of hierarchical matrices with applications. CoRR Sivaram Ambikasaran, Michael O'Neil
2014	J	`jnl`	Generalized Rybicki Press algorithm. CoRR Sivaram Ambikasaran
2014	J	`jnl`	The Inverse Fast Multipole Method. CoRR Sivaram Ambikasaran, Eric Darve
2013	J	`jnl`	An O (N log N) Fast Direct Solver for Partial Hierarchically Semi-Separable Matrices - With Application to Radial Basis Function Interpolation. J. Sci. Comput. Sivaram Ambikasaran, Eric Darve