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Related papers: Eta-Invariants and Determinant Lines

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We show meromorphic extension and analyze the divisors of a Selberg zeta function of odd type $Z_{\Gamma,\Sigma}^{\rm o}(\lambda)$ associated to the spinor bundle $\Sigma$ on odd dimensional convex co-compact hyperbolic manifolds…

Spectral Theory · Mathematics 2009-01-27 Colin Guillarmou , Sergiu Moroianu , Jinsung Park

We give some remarks on twisted determinant line bundles and Chern-Simons topological invariants associated with real hyperbolic manifolds. Index of a twisted Dirac operator is derived. We discuss briefly application of obtained results in…

High Energy Physics - Theory · Physics 2009-11-07 A. A. Bytsenko , M. C. Falleiros , A. E. Goncalves , Z. G. Kuznetsova

We present a new proof, as well as a ${\bf C/Q}$ extension, of the Riemann-Roch-Grothendieck theorem of Bismut-Lott for flat vector bundles. The main techniques used are the computations of the adiabatic limits of $\eta$-invariants…

Differential Geometry · Mathematics 2007-05-23 Xiaonan Ma , weiping Zhang

In this paper we discuss the refined analytic torsion on an odd dimensional compact oriented Riemannian manifold with boundary under some assumption. For this purpose we introduce two boundary conditions which are complementary to each…

Differential Geometry · Mathematics 2017-09-04 Rung-Tzung Huang , Yoonweon Lee

On complete non-compact manifolds with bounded sectional curvature, we consider a class of self-adjoint Dirac-type operators called Dirac-Schr\"odinger operators. Assuming two Dirac-Schr\"odinger operators coincide at infinity, by previous…

Differential Geometry · Mathematics 2026-04-14 Pengshuai Shi

Using adiabatic limits of Eta invariants, Rho invariants of the total space of a fiber bundle are investigated. One concern is to formulate the aspects of local index theory for families of Dirac operator in terms of the odd signature…

Geometric Topology · Mathematics 2009-07-22 Michael Bohn

We study the geometry of determinant line bundles associated to Dirac operators on compact odd dimensional manifolds. Physically, these arise as (local) vacuum line bundles in quantum gauge theory. We give a simplified derivation of the…

High Energy Physics - Theory · Physics 2007-05-23 Joakim Arnlind , Jouko Mickelsson

We study the dependence of the eta invariant $\eta_D$ on the spin structure, where $D$ is a twisted Dirac operator on a (4k+3)-dimensional spin manifold. The difference between the eta invariants for two spin structures related by a…

Differential Geometry · Mathematics 2011-07-21 Mattias Dahl

Let $G$ be a connected, linear real reductive group and let $X$ be a cocompact $G$-proper manifold without boundary. We define delocalized eta invariants associated to a $L^2$-invertible perturbed Dirac operator $D_X+A$ with $A$ a suitable…

Differential Geometry · Mathematics 2025-04-29 Paolo Piazza , Hessel Posthuma , Yanli Song , Xiang Tang

In this article, we study several closely related invariants associated to Dirac operators on odd-dimensional manifolds with boundary with an action of the compact group $H$ of isometries. In particular, the equality between equivariant…

Differential Geometry · Mathematics 2024-05-21 Johnny Lim , Hang Wang

In previous work, we introduced eta invariants for even dimensional manifolds. It plays the same role as the eta invariant of Atiyah-Patodi-Singer, which is for odd dimensional manifolds. It is associated to $K^1$ representatives on even…

Differential Geometry · Mathematics 2011-10-17 Xianzhe Dai

Given two unitary involutions $\sigma_{1}$ and $\sigma_{2}$ satisfying $G \sigma_{i} = - \sigma_{i} G$ on $ker B$ on a compact manifold with cylindrical end, M. Lesch, K. Wojciechowski ([LW]) and W. M\"uller ([M]) established the formula…

Differential Geometry · Mathematics 2007-05-23 Yoonweon Lee

We consider families of Dirac operators on the unit interval which depend on parameters via boundary conditions. We study the associated eta forms and Maslov cocyles. With this simple example we show how previous results of…

dg-ga · Mathematics 2008-02-03 U. Bunke , H. Koch

In this paper, we define a relative $L^2$-$\rho$-invariant for Dirac operators on odd-dimensional spin manifolds with boundary and show that they are invariants of the bordism classes of positive scalar curvature metrics which are collared…

Geometric Topology · Mathematics 2020-09-30 Simone Cecchini , Mehran Seyedhosseini , Vito Felice Zenobi

We investigate index theory in the context of Dirac operators coupled to superconnections. In particular, we prove a local index theorem for such operators, and for families of such operators. We investigate eta-invariants and prove an…

Differential Geometry · Mathematics 2011-05-03 Alexander Kahle

The odd signature operator is a Dirac operator which acts on the space of differential forms of all degrees and whose square is the usual Laplacian. We extend the result of [15] to prove the gluing formula of the zeta-determinants of…

Differential Geometry · Mathematics 2013-11-19 Rung-Tzung Huang , Yoonweon Lee

We prove two geometric index theorems for a family of first-order elliptic operators over a manifold with boundary by computing eta form representatives for the Chern character classes of the index bundle. The eta forms occur as relative…

Differential Geometry · Mathematics 2007-05-23 S. Scott

Let $\mathcal{A}_0$ and $\mathcal{A}_1$ be two self-adjoint Fredholm Dirac-type operators defined on two non-compact manifolds. If they coincide at infinity so that the relative heat operator is trace-class, one can define their relative…

Differential Geometry · Mathematics 2021-03-01 Pengshuai Shi

We establish existence of the eta-invariant as well as of the Atiyah-Patodi-Singer and the Cheeger-Gromov rho-invariants for a class of Dirac operators on an incomplete edge space. Our analysis applies in particular to the signature, the…

Differential Geometry · Mathematics 2020-03-03 Paolo Piazza , Boris Vertman

We study elliptic theory on manifolds with boundary represented as a covering space. Firstly, we consider boundary value problems, where the boundary conditions are allowed to mix the values of functions in the fibers of the covering. We…

K-Theory and Homology · Mathematics 2007-05-23 A. Savin , B. Sternin