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We prove a local index theorem of Atiyah-Singer type for Dirac operators on manifolds with a Lie structure at infinity (Lie manifolds for short). With the help of a renormalized supertrace, defined on a suitable class of regularizing…

Operator Algebras · Mathematics 2017-04-14 Karsten Bohlen , Elmar Schrohe

For small perturbations of Minkowski space, we show that the square of the Lorentzian Dirac operator $P= -D^2$ has real spectrum apart from possible poles in a horizontal strip. Furthermore, for $\varepsilon>0$ we relate the poles of the…

Analysis of PDEs · Mathematics 2024-12-18 Nguyen Viet Dang , András Vasy , Michał Wrochna

We show that the residue density of the logarithm of a generalised Laplacian on a closed manifold defines an invariant polynomial valued differential form. We express it in terms of a finite sum of residues of classical pseudodifferential…

Differential Geometry · Mathematics 2010-08-19 Jouko Mickelsson , Sylvie Paycha

Let $G$ be an arbitrary compact Lie group. In this work we apply the method of the analytic continuation of traces in order to compute the Wodzicki residue for a classical pseudo-differential operator on $G$ in terms of its matrix-valued…

Differential Geometry · Mathematics 2022-02-02 Duván Cardona

The canonical trace and the Wodzicki residue on classical pseudodifferential operators on a closed manifold are characterised by their locality and shown to be preserved under lifting to the universal covering as a result of their local…

Differential Geometry · Mathematics 2020-07-14 Sara Azzali , Sylvie Paycha

We study general conditions under which the computations of the index of a perturbed Dirac operator $D_{s}=D+sZ$ localize to the singular set of the bundle endomorphism $Z$ in the semi-classical limit $s\to \infty $. We show how to use…

Differential Geometry · Mathematics 2015-06-26 Igor Prokhorenkov , Ken Richardson

We study Dirac operators acting on sections of a Clifford module ${\cal E}$\ over a Riemannian manifold $M$. We prove the intrinsic decomposition formula for their square, which is the generalisation of the well-known formula due to…

High Energy Physics - Theory · Physics 2007-05-23 T. Ackermann , J. Tolksdorf

We study equivariant families of Dirac operators on the source fibers of a Lie groupoid with a closed space of units and equipped with an action of an auxiliary compact Lie group. We use the Getzler rescaling method to derive a fixed-point…

Differential Geometry · Mathematics 2024-07-23 Ahmad Reza Haj Saeedi Sadegh , Shiqi Liu , Yiannis Loizides , Jesus Sanchez

We present a unified approach to study properties of Toeplitz localization operators based on the Calder\'on and Gabor reproducing formula. We show that these operators with functional symbols on a plane domain may be viewed as certain…

Functional Analysis · Mathematics 2012-07-12 Ondrej Hutník , Mária Hutníková

In this paper, the weighted estimates for multilinear pseudo-differential operators were systematically studied in rearrangement invariant Banach and quasi-Banach spaces. These spaces contain the Lebesgue space, the classical Lorentz space…

Classical Analysis and ODEs · Mathematics 2023-12-21 Jiawei Tan , Qingying Xue

Let $P$ be a non-negative self-adjoint Laplace type operator acting on sections of a hermitian vector bundle over a closed Riemannian manifold. In this paper we review the close relations between various $P$-related coefficients such as the…

Spectral Theory · Mathematics 2016-04-20 Liangpan Li , Alexander Strohmaier

For a finite rank projective bundle over a compact manifold, so associated to a torsion, Dixmier-Douady, 3-class, w, on the manifold, we define the ring of differential operators `acting on sections of the projective bundle' in a formal…

Differential Geometry · Mathematics 2019-10-25 V. Mathai , R. B. Melrose , I. M. Singer

We define a dynamical residue which generalizes the Guillemin-Wodzicki residue density of pseudo-differential operators. More precisely, given a Schwartz kernel, the definition refers to Pollicott-Ruelle resonances for the dynamics of…

Analysis of PDEs · Mathematics 2024-12-05 Nguyen Viet Dang , Michał Wrochna

Under certain hypothesis on the underlying classical Hamiltonian flow, we produce local scaling asymptotics in the semiclassical regime for a Berezin-T\"oplitz version of the Gutzwiller trace formula on a quantizable compact K\"ahler…

Symplectic Geometry · Mathematics 2016-01-25 Roberto Paoletti

The classical Getzler rescaling theorem is extended to the transverse geometry of foliations. More precisely, a Getzler rescaling calculus, as well as a Block-Fox calculus of asymptotic operators, is constructed for all transversely spin…

Geometric Topology · Mathematics 2016-07-28 Moulay Tahar Benameur , L. James Heitsch

We investigate spectral functionals associated with Dirac and Laplace-type differential operators on manifolds, defined via the Wodzicki residue, extending classical results for Dirac operators derived from the Levi-Civita connection to…

Mathematical Physics · Physics 2026-04-15 Arkadiusz Bochniak , Ludwik Dąbrowski , Andrzej Sitarz , Paweł Zalecki

Because of the nonlocal properties of fractional operators, higher order schemes play more important role in discretizing fractional derivatives than classical ones. The striking feature is that higher order schemes of fractional…

Numerical Analysis · Mathematics 2014-06-17 Minghua Chen , Weihua Deng

\begin{abstract} By following the paradigm of the global quantisation, instead of the analysis under changes of coordinates, in this work we establish a global analysis for the explicit computation of the Dixmier trace and the Wodzicki…

Differential Geometry · Mathematics 2021-06-01 Duván Cardona , Julio Delgado , Michael Ruzhansky

We revisit traces of holomorphic families of pseudodifferential operators on a closed manifold in view of geometric applications. We then transpose the corresponding analytic constructions to two different geometric frameworks; the…

Operator Algebras · Mathematics 2015-01-27 Sara Azzali , Cyril Lévy , Carolina Neira Jiménez , Sylvie Paycha

In this paper we give formulae for the Dixmier trace and the noncommutative residue (also called Wodzicki's residue) of pseudo-differential operators by using the notion of global symbol. We consider both cases, compact manifolds with or…

Differential Geometry · Mathematics 2018-08-06 Duván Cardona , César Del Corral
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