Numerical Algorithms Library

This is a library for various numerical algorithms that can work with the VMPS code (https://github.com/TNWorkers/VMPS) or with other codes.

Features

• Lanczos algorithm for the lowest eigenvectors of Hermitian matrices
• Arnoldi algorithm for the lowest eigenvectors of general matrices
• GMRES to solve systems of linear equations on the Krylov space
• Brillouin zone sums
• Gaussian integration with user-defined weight functions
• reverse Cuthill-McKee algorithm to minimize graph bandwidth
• spline interpolation
• linear prediction
• solver for the radial part of the single-particle Schrödinger equation
• finding numerical roots

Dependencies

• C++, Eigen, Boost, GSL

Documentation

Browse doxygen documentation to explore the interface and general documentation.

Contributors

Roman Rausch, Matthias Peschke, Cassian Plorin