activity
20142022
most citedAn adaptive interpolation scheme for molecular potential energy surfaces

9 citations · 9 across the 8 of their papers we have counts for

collaborators

8 papers

math.NA2022

Adaptive Partition of Unity Interpolation Method with Moving Patches

Alfa Heryudono, Mehdi Raessi

The adaptive partition of unity interpolation method, introduced by Aiton and Driscoll, using Chebyshev local interpolants, is explored for interpolating functions with sharp gradi…

math.NA2021

Performance Evaluation of Mixed-Precision Runge-Kutta Methods

Ben Burnett, Sigal Gottlieb, Zachary J. Grant +1

Additive Runge-Kutta methods designed for preserving highly accurate solutions in mixed-precision computation were proposed and analyzed in [8]. These specially designed methods us…

math.NA2020

A least squares radial basis function finite difference method with improved stability properties

Igor Tominec, Elisabeth Larsson, Alfa Heryudono

Localized collocation methods based on radial basis functions (RBFs) for elliptic problems appear to be non-robust in the presence of Neumann boundary conditions. In this paper we…

physics.comp-ph2020

Space-Time Collocation Method: Loop Quantum Hamiltonian Constraints

Alec Yonika, Alfa Heryudono, Gaurav Khanna

A space-time collocation method (STCM) using asymptotically-constant basis functions is proposed and applied to the quantum Hamiltonian constraint for a loop-quantized treatment of…

math.NA2017

Radial basis function methods for the Rosenau equation and other higher order PDEs

Ali Safdari-Vaighani, Elisabeth Larsson, Alfa Heryudono

Meshfree methods based on radial basis function (RBF) approximation are of interest for numerical solution of partial differential equations (PDEs) because they are flexible with r…

math.NA2017

A Least Squares Radial Basis Function Partition of Unity Method for Solving PDEs

Elisabeth Larsson, Victor Shcherbakov, Alfa Heryudono

Recently, collocation based radial basis function (RBF) partition of unity methods (PUM) for solving partial differential equations have been formulated and investigated numericall…

physics.chem-ph2016★ 9 cited

An adaptive interpolation scheme for molecular potential energy surfaces

Markus Kowalewski, Elisabeth Larsson, Alfa Heryudono

The calculation of potential energy surfaces for quantum dynamics can be a time consuming task -- especially when a high level of theory for the electronic structure calculation is…

math.NA2014

A Reduced Radial Basis Function Method for Partial Differential Equations on irregular domains

Yanlai Chen, Sigal Gottlieb, Alfa Heryudono +1

We propose and test the first Reduced Radial Basis Function Method (RBFM) for solving parametric partial differential equations on irregular domains. The two major ingredients…