74 citations · 156 across the 28 of their papers we have counts for
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hep-lat2011★ 1 cited
Error Bounds for the Sign Function
Andreas Frommer, Karsten Kahl, Thomas Lippert +1
The Overlap operator fulfills the Ginsparg-Wilson relation exactly and therefore represents an optimal discretization of the QCD Dirac operator with respect to chiral symmetry. Whe…
math.NA2011★ 3 cited
An algebraic distances measure of AMG strength of connection
Achi Brandt, James Brannick, Karsten Kahl +1
Algebraic multigrid is an iterative method that is often optimal for solving the matrix equations that arise in a wide variety of applications, including discretized partial differ…