Spectral Asymmetry and Index Theory on Manifolds with Generalised Hyperbolic Cusps
نویسندگان
چکیده
We consider a complete Riemannian manifold, which consists of compact interior and one or more $\varphi$-cusps: infinitely long ends type that includes cylindrical hyperbolic cusps. Here $\varphi$ is function the radial coordinate describes shape such an end. Given action by Lie group on we obtain equivariant index theorem for Dirac operators, under conditions $\varphi$. These hold in cases In case ends, cusp contribution equals delocalised $\eta$-invariant, reduces to Donnelly's theory manifolds with boundary. general, find zero if spectrum relevant operator hypersurface symmetric around zero.
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ژورنال
عنوان ژورنال: Symmetry Integrability and Geometry-methods and Applications
سال: 2023
ISSN: ['1815-0659']
DOI: https://doi.org/10.3842/sigma.2023.023