Abstract
On a spin manifold with conformal cusps, we prove under an invertibility condition at infinity that the eta function of the twisted Dirac operator has at most simple poles and is regular at the origin. For hyperbolic manifolds of finite volume, the eta function of the Dirac operator twisted by any homogeneous vector bundle is shown to be entire.
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SM was partially supported by grant PN-II-ID-PCE 1188 265/2009. PL was partially supported by NSF grant 0757795.
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Loya, P., Moroianu, S. & Park, J. Regularity of the eta function on manifolds with cusps. Math. Z. 269, 955–975 (2011). https://doi.org/10.1007/s00209-010-0769-3
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DOI: https://doi.org/10.1007/s00209-010-0769-3