Towards Multigrid Methods for Propagators of Staggered Fermions with Improved Averaging and Interpolation Operators

Abstract

A Dirac choice for the averaging kernel $C$ is implemented numerically. This improved kernel will be needed in gauge covariant multigrid computations for propagators of staggered fermions. Results for $C$ and the variational coarse grid operator will be given in 2-$d$ $SU(2)$ gauge fields. C++ is advocated for future algorithm development.

Comments: 3 pages, to appear in the proceedings of LATTICE '93. NOTE: this is a ps-file, should you require the LaTeX source code, contact author by e-mail