, Volume 247, Issue 2, pp 319-335
Date: 17 Feb 2004

Spin structures and spectra of ℤ2 k -manifolds

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Abstract.

We give necessary and sufficient conditions for the existence of pin± and spin structures on Riemannian manifolds with holonomy group ℤ2 k . For any n≥4 (resp. n≥6) we give examples of pairs of compact manifolds (resp. compact orientable manifolds) M 1 , M 2 , non homeomorphic to each other, that are Laplace isospectral on functions and on p-forms for any p and such that M 1 admits a pin ± (resp. spin) structure whereas M 2 does not.

Mathematics Subject Classification (2000):58J53, 57R15, 20H15
Partially supported by Conicet and grants from SecytUNC, Foncyt and AgCba.