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On the index of Dirac operators on arithmetic quotients

Published online by Cambridge University Press:  17 April 2009

Anton Deitmar
Affiliation:
Mathematisches InstitutUniversitat HeidelbergIm Neuenheimer Feld 288D-69120 HeidelbergGermany
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Abstract

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The aim of this note is to show how the trace formula of Arthur-Selberg can be used to derive index theorems for noncompact arithmetic manifolds. Of special interest is the question, under which circumstances there is an index formula without error term, that is, of the same shape as in the compact case. We shall thus present evidence for the hypothesis that the error term for the Euler operator vanishes in the case that the rational rank is smaller than the real rank.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1997

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