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Related papers: Higher p invariants

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We study noncommutative eta- and rho-forms for homotopy equivalences. We prove a product formula for them and show that the rho-forms are well-defined on the structure set. We also define an index theoretic map from L-theory to C*-algebraic…

Differential Geometry · Mathematics 2014-02-26 Charlotte Wahl

In this paper, we adapt part of Weinberger, Xie and Yu's breakthrough work, to define additive higher rho invariant for topological structure group by differential geometric version of signature operators, or in other words, unbounded…

Differential Geometry · Mathematics 2019-08-02 Baojie Jiang , Hongzhi Liu

For each orientation-preserving homotopy equivalence between two closed oriented smooth manifolds, there are mainly two different approaches to the higher $\rho$ invariant associated to this homotopy equivalence. In this article, we show…

Algebraic Topology · Mathematics 2024-11-27 Hongzhi Liu , Zhizhang Xie , Guoliang Yu

We define families of invariants for elements of the mapping class group of S, a compact orientable surface. Fix any characteristic subgroup H of pi_1(S) and restrict to J(H), any subgroup of mapping classes that induce the identity modulo…

Geometric Topology · Mathematics 2015-03-13 Tim D. Cochran , Shelly Harvey , Peter Horn

We study the eta-invariant, defined by Atiyah-Patodi-Singer a real valued invariant of an oriented odd-dimensional Riemannian manifold equipped with a unitary representation of its fundamental group. When the representation varies…

dg-ga · Mathematics 2008-02-03 Michael S. Farber , Jerome P. Levine

Higher index of signature operator is a far reaching generalization of signature of a closed oriented manifold. When two closed oriented manifolds are homotopy equivalent, one can define a secondary invariant of the relative signature…

K-Theory and Homology · Mathematics 2019-08-29 Hongzhi Liu , Jinmin Wang

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

If M is a compact oriented manifold-with-boundary whose fundamental group is virtually nilpotent or Gromov-hyperbolic, we show that the higher signatures of M are oriented-homotopy invariants.

Differential Geometry · Mathematics 2007-05-23 Eric Leichtnam , John Lott , Paolo Piazza

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

We define the secondary invariants L^2- eta and -rho forms for families of generalized Dirac operators on normal coverings of fibre bundles. On the covering family we assume transversally smooth spectral projections, and Novikov--Shubin…

Geometric Topology · Mathematics 2011-08-30 Sara Azzali

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 discuss relations among several invariants of 3-manifolds including Meyer's function, the eta-invariant, the von Neumann rho-invariant and the Casson invariant from the viewpoint of the mapping class group of a surface.

Geometric Topology · Mathematics 2008-04-07 Takayuki Morifuji

In this paper, we use localization algebras to study higher rho invariants of closed spin manifolds with positive scalar curvature metrics. The higher rho invariant is a secondary invariant and is closely related to positive scalar…

K-Theory and Homology · Mathematics 2014-05-21 Zhizhang Xie , Guoliang Yu

We define a supercategorification of the $q$-Schur algebra of level two and an odd analogue of $\mathfrak{gl}_2$-foams. Using these constructions, we define a homological invariant of tangles, and show that it coincides with odd Khovanov…

Geometric Topology · Mathematics 2024-03-05 Léo Schelstraete , Pedro Vaz

The equivariant rho-invariants studied in this paper are a version of the classical rho-invariants of Atiyah, Patodi, and Singer in the presence of an isometric involution. We compute these rho-invariants for all involutions on the…

Geometric Topology · Mathematics 2016-09-19 Nima Anvari

We describe the rings of invariants for the finite orthogonal groups of plus type in odd characteristic acting on the defining representations. We also describe the invariants of the corresponding Sylow subgroups in the defining…

Commutative Algebra · Mathematics 2026-03-12 H. E. A. Campbell , R. James Shank , David L. Wehlau

By using the notion of a rigid R-matrix in a monoidal category and the Reshetikhin--Turaev functor on the category of tangles, we review the definition of the associated invariant of long knots. In the framework of the monoidal categories…

Quantum Algebra · Mathematics 2020-01-01 Rinat Kashaev

In this thesis we talk about lipschitz-homotopy invariants for manifolds of bounded geometry. There are three main results: the first one is the definition of a controvariant functor between the category of manifolds of bounded geometry…

Differential Geometry · Mathematics 2021-09-16 Stefano Spessato

In this paper we define a variant of Roe algebras for spaces with cylindrical ends and use this to study questions regarding existence and classification of metrics of positive scalar curvature on such manifolds which are collared on the…

K-Theory and Homology · Mathematics 2021-10-22 Mehran Seyedhosseini

Let $X$ be a closed oriented connected topological manifold of dimension $n\geq 5$. The structure group of $X$ is the abelian group of equivalence classes of all pairs $(f, M)$ such that $M$ is a closed oriented manifold and $f\colon M \to…

K-Theory and Homology · Mathematics 2020-02-25 Shmuel Weinberger , Zhizhang Xie , Guoliang Yu
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