The eigSUMR inverter for overlap fermions

Abstract

We discuss the usage and applicability of deflation methods for the overlap lattice Dirac operator, focusing on calculating the eigenvalues using a method similar to the eigCG algorithm used for other Dirac operators. The overlap operator, which contains several theoretical advantages over other formulations of lattice QuantumChromodynamics, ismore… (More)
DOI: 10.1016/j.cpc.2015.10.001

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