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math.NA2022
Factorized structure of the long-range two-electron integrals tensor and its application in quantum chemistry
Siwar Badreddine, Igor Chollet, Laura Grigori
We introduce two new approximation methods for the numerical evaluation of the long-range Coulomb potential and the approximation of the resulting high dimensional Two-Electron Int…
math.NA2022
A Directional Equispaced interpolation-based Fast Multipole Method for oscillatory kernels
Igor Chollet, Xavier Claeys, Pierre Fortin +1
Fast Multipole Methods (FMMs) based on the oscillatory Helmholtz kernel can reduce the cost of solving N-body problems arising from Boundary Integral Equations (BIEs) in acoustic o…