150 citations · 159 across the 2 of their papers we have counts for
2 papers
hep-lat2002★ 150 cited
Numerical Methods for the QCD Overlap Operator: I. Sign-Function and Error Bounds
J. van den Eshof, A. Frommer, Th. Lippert +2
The numerical and computational aspects of the overlap formalism in lattice quantum chromodynamics are extremely demanding due to a matrix-vector product that involves the sign fun…
hep-lat2001★ 9 cited
A comparative study of numerical methods for the overlap Dirac operator--a status report
J. van den Eshof, A. Frommer, Th. Lippert +2
Improvements of various methods to compute the sign function of the hermitian Wilson-Dirac matrix within the overlap operator are presented. An optimal partial fraction expansion (…