English
Related papers

Related papers: Eta and rho invariants on manifolds with edges

200 papers

We construct eta- and rho-invariants for Dirac operators, on the universal covering of a closed manifold, that are invariant under the projective action associated to a 2-cocycle of the fundamental group. We prove an Atiyah-Patodi-Singer…

Differential Geometry · Mathematics 2015-04-16 Sara Azzali , Charlotte Wahl

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

We show that the R/Z part of the analytically defined eta invariant of Atiyah-Patodi-Singer for a Dirac operator on an odd dimensional closed spin manifold can be expressed purely geometrically through a stable Chern-Simons current on a…

Differential Geometry · Mathematics 2007-05-23 Weiping Zhang

Several proofs have been published of the Mod Z gluing formula for the eta-invariant of a Dirac operator. However, so far the integer contribution to the gluing formula for the eta-invariant is left obscure in the literature. In this…

Differential Geometry · Mathematics 2007-05-23 Paul Kirk , Matthias Lesch

This article is a follow up of the previous article of the authors on the analytic surgery of eta- and rho-invariants. We investigate in detail the (Atiyah-Patodi-Singer)-rho-invariant for manifolds with boundary. First we generalize the…

Differential Geometry · Mathematics 2014-10-01 Paul Kirk , Matthias Lesch

Let G be a finitely generated discrete group. In this paper we establish vanishing results for rho-invariants associated to (i) the spin-Dirac operator of a spin manifold with positive scalar curvature (ii) the signature operator of the…

K-Theory and Homology · Mathematics 2018-11-28 Paolo Piazza , Thomas Schick

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

We derive a formula for the index of a Dirac operator on a compact, even-dimensional incomplete edge space satisfying a "geometric Witt condition". We accomplish this by cutting off to a smooth manifold with boundary, applying the…

Differential Geometry · Mathematics 2016-09-09 Pierre Albin , Jesse Gell-Redman

We present the details of our embedding proof of the Atiyah-Patodi-Singer index theorem for Dirac operators on manifolds with boundary.

Differential Geometry · Mathematics 2007-05-23 Xianzhe Dai , Weiping Zhang

We study the index of the APS boundary value problem for a strongly Callias-type operator D on a complete Riemannian manifold $M$. We show that this index is equal to an index on a simpler manifold whose boundary is a disjoint union of two…

Differential Geometry · Mathematics 2019-12-03 Maxim Braverman , Pengshuai Shi

We extend the Atiyah, Patodi, and Singer index theorem for first order differential operators from the context of manifolds with cylindrical ends to manifolds with periodic ends. This theorem provides a natural complement to Taubes'…

Differential Geometry · Mathematics 2019-02-20 Tomasz Mrowka , Daniel Ruberman , Nikolai Saveliev

Motivated by the work of Vishik on the analytic torsion we introduce a new class of generalized Atiyah-Patodi-Singer boundary value problems. We are able to derive a full heat expansion for this class of operators generalizing earlier work…

dg-ga · Mathematics 2008-02-03 Jochen Brüning , Matthias Lesch

We study primary and secondary invariants of leafwise Dirac operators on foliated bundles. Given such an operator, we begin by considering the associated regular self-adjoint operator $D_m$ on the maximal Connes-Skandalis Hilbert module and…

Differential Geometry · Mathematics 2008-09-15 Moulay-Tahar Benameur , Paolo Piazza

In this paper, we introduce several new secondary invariants for Dirac operators on a complete Riemannian manifold with a uniform positive scalar curvature metric outside a compact set and use these secondary invariants to establish a…

K-Theory and Homology · Mathematics 2021-09-02 Xiaoman Chen , Hongzhi Liu , Hang Wang , Guoliang Yu

In this paper we establish a formula, expressing the generalized Atiyah-Patodi-Singer index in terms of eta invariants of domain-wall massive Dirac operators, without assuming that the Dirac operator on the boundary is invertible. Compared…

Differential Geometry · Mathematics 2023-06-30 Jialin Zhu

The eta invariant appears regularly in index theorems but is known to be directly computable from the spectrum only in certain examples of locally symmetric spaces of compact type. In this work, we derive some general formulas useful for…

Differential Geometry · Mathematics 2024-05-17 Ruth Gornet , Ken Richardson

For a closed, oriented, odd dimensional manifold $X$, we define the rho invariant $\rho(X,E,H)$ for the twisted odd signature operator valued in a flat hermitian vector bundle $E$, where $H = \sum i^{j+1} H_{2j+1}$ is an odd-degree closed…

Differential Geometry · Mathematics 2019-02-20 Moulay Tahar Benameur , Varghese Mathai

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

We compute the eta function $\eta(s)$ and its corresponding $\eta$-invariant for the Atiyah-Patodi-Singer operator $\mathcal{D}$ acting on an orientable compact flat manifold of dimension $n =4h-1$, $h\ge 1$, and holonomy group $F\simeq…

Differential Geometry · Mathematics 2017-02-24 Ricardo A. Podestá

This is a survey of recent results on zeta- and eta-function poles and values for realizations of Laplace- and Dirac-type operators defined by pseudodifferential projection boundary conditions (including the Atiyah-Patodi-Singer operator…

Analysis of PDEs · Mathematics 2007-05-23 Gerd Grubb
‹ Prev 1 2 3 10 Next ›