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Solutions of the Ginsparg-Wilson Relation

Ting-Wai Chiu, Sergei V. Zenkin

hep-latarXiv:hep-lat/9806019

Abstract

We analyze general solutions of the Ginsparg-Wilson relation for lattice Dirac operators and formulate a necessary condition for such operators to have non-zero index in the topologically nontrivial background gauge fields.

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