Sivaram Ambikasaran

Publication Activity (10 Years)

Years Active: 2013-2024
Publications (10 Years): 15

Top Topics

Top Venues

J. Comput. Phys.

SIAM J. Sci. Comput.

IEEE Trans. Pattern Anal. Mach. Intell.

Publications

Ritesh Khan, V. A. Kandappan, Sivaram Ambikasaran
-dimensions with guaranteed error bounds: Applications to integral equations and support vector machines. J. Comput. Phys. 501 (2024)
Vaishnavi Gujjula, Sivaram Ambikasaran
Algebraic Inverse Fast Multipole Method: A fast direct solver that is better than HODLR based fast direct solver. J. Comput. Phys. 497 (2024)
Ritesh Khan, Sivaram Ambikasaran
New algebraic fast algorithms for N-body problems in two and three dimensions. CoRR (2023)
Vaishnavi Gujjula, Sivaram Ambikasaran
Algebraic Inverse Fast Multipole Method: A fast direct solver that is better than HODLR based fast direct solver. CoRR (2023)
V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
HODLR3D: Hierarchical matrices for N-body problems in three dimensions. CoRR (2023)
V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
HODLR2D: A New Class of Hierarchical Matrices. SIAM J. Sci. Comput. 45 (5) (2023)
Vaishnavi Gujjula, Sivaram Ambikasaran
A new Directional Algebraic Fast Multipole Method based iterative solver for the Lippmann-Schwinger equation accelerated with HODLR preconditioner. CoRR (2022)
Ritesh Khan, V. A. Kandappan, Sivaram Ambikasaran
Numerical rank of singular kernel functions. CoRR (2022)
V. A. Kandappan, Vaishnavi Gujjula, Sivaram Ambikasaran
HODLR2D: A new class of Hierarchical matrices. CoRR (2022)
Vaishnavi Gujjula, Sivaram Ambikasaran
A new Nested Cross Approximation. CoRR (2022)
Sivaram Ambikasaran, Karan Singh, Shyam Sankaran
HODLRlib: A Library for Hierarchical Matrices. J. Open Source Softw. 4 (34) (2019)
Sivaram Ambikasaran, Daniel Foreman-Mackey, Leslie Greengard, David W. Hogg, Michael O'Neil
Fast Direct Methods for Gaussian Processes. IEEE Trans. Pattern Anal. Mach. Intell. 38 (2) (2016)
Amirhossein Aminfar, Sivaram Ambikasaran, Eric Darve
A fast block low-rank dense solver with applications to finite-element matrices. J. Comput. Phys. 304 (2016)
Sivaram Ambikasaran, Carlos Borges, Lise-Marie Imbert-Gérard, Leslie Greengard
Fast, Adaptive, High-Order Accurate Discretization of the Lippmann-Schwinger Equation in Two Dimensions. SIAM J. Sci. Comput. 38 (3) (2016)
Sivaram Ambikasaran
Generalized Rybicki Press algorithm. Numer. Linear Algebra Appl. 22 (6) (2015)
Amirhossein Aminfar, Sivaram Ambikasaran, Eric Darve
A Fast Block Low-Rank Dense Solver with Applications to Finite-Element Matrices. CoRR (2014)
Judith Y. Li, Sivaram Ambikasaran, Eric Darve, Peter K. Kitanidis
-matrices for quasi-continuous data assimilation problems. CoRR (2014)
Jun Lai, Sivaram Ambikasaran, Leslie Greengard
A Fast Direct Solver for High Frequency Scattering from a Large Cavity in Two Dimensions. SIAM J. Sci. Comput. 36 (6) (2014)
Sivaram Ambikasaran, Michael O'Neil
Fast symmetric factorization of hierarchical matrices with applications. CoRR (2014)
Sivaram Ambikasaran, Eric Darve
The Inverse Fast Multipole Method. CoRR (2014)
Jun Lai, Sivaram Ambikasaran, Leslie Greengard
A fast direct solver for high frequency scattering from a large cavity in two dimensions. CoRR (2014)
Sivaram Ambikasaran
Generalized Rybicki Press algorithm. CoRR (2014)
Sivaram Ambikasaran, Eric Darve
An O (N log N) Fast Direct Solver for Partial Hierarchically Semi-Separable Matrices - With Application to Radial Basis Function Interpolation. J. Sci. Comput. 57 (3) (2013)