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hep-lat2004★ 1 cited
Improving Inversions of the Overlap Operator
S. Krieg, N. Cundy, J. van den Eshof +3
We present relaxation and preconditioning techniques which accelerate the inversion of the overlap operator by a factor of four on small lattices, with larger gains as the lattice…
hep-lat2003★ 1 cited
Numerical Methods for the QCD Overlap Operator: II. Optimal Krylov Subspace Methods
G. Arnold, N. Cundy, J. van den Eshof +4
We investigate optimal choices for the (outer) iteration method to use when solving linear systems with Neuberger's overlap operator in QCD. Different formulations for this operato…