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A natural generalization of Krein's theorem to a pair of commuting tuples $\left(H_1^0,H_2^0\right)$ and $\left(H_1,H_2\right)$ of bounded self-adjoint operators in a separable Hilbert space $\mathcal{H}$ with $H_j-H_j^0 = V_j\in…

Functional Analysis · Mathematics 2014-05-07 Arup Chattopadhyay , Kalyan B. Sinha

Higher curvature corrections to the Einstein-Hilbert term may play an important role in probing the strong-field regime of gravity. In this letter, we demonstrate that the local effective action reproducing the trace anomaly can resemble…

General Relativity and Quantum Cosmology · Physics 2025-06-03 Giorgi Tukhashvili

Let F be a number field and $\widetilde{\mathrm{Sp}}(2n)$ be the metaplectic covering of Weil of $\mathrm{Sp}(2n, \mathbb{A}_F)$. We stabilize the elliptic semi-simple terms of the genuine part of trace formula for…

Representation Theory · Mathematics 2015-02-11 Wen-Wei Li

Let $G$ be a second countable, locally compact groupoid with Haar system, and let $\mathcal{A}$ be a bundle of $C^{\ast}$-algebras defined over the unit space of $G$ on which $G$ acts continuously. We determine conditions under which the…

Operator Algebras · Mathematics 2007-05-23 Igor Fulman , Paul S. Muhly , Dana P. Williams

Motivated by a question of L. Robert, asking whether $\rm L(T(A)) = Lsc_{C}(T(A))$ for any separable C*-algebra A, we introduce and initiate the study of \emph{tracially reflexive C*-algebras}. We first prove that commutative C*-algebras…

Operator Algebras · Mathematics 2026-05-22 Laurent Cantier

An exact trace formula for the perturbation of the Laplacian by a Dirac delta potential on a compact hyperbolic Riemann surface is derived. The formula can be considered an analogue of the Selberg trace formula. The difference of perturbed…

Mathematical Physics · Physics 2012-03-12 Henrik Ueberschaer

Let G a be subgroup of SL(2,C), the group of 2x2 matrices of determinant 1 with complex entries. Let h map onto h(G) be a homomorphism. We call h a trace preserving homomorphism if tr(h(g))=tr(g) for all g in G,where tr(g) is the trace of…

Geometric Topology · Mathematics 2016-08-31 N. Purzitsky

Several formulas for computing coarse indices of twisted Dirac type operators are introduced. One type of such formulas is by composition product in $E$-theory. The other type is by module multiplications in $K$-theory, which also yields an…

K-Theory and Homology · Mathematics 2018-01-03 Christopher Wulff

The relative trace formula of Jacquet-Rallis (for unitary groups or general linear groups) is an identity between periods of automorphic representations and geometric distributions. In this paper, we prove the transfer between all geometric…

Representation Theory · Mathematics 2016-11-30 Pierre-Henri Chaudouard , Michał Zydor

In the study of long-time correlations extremely long orbits must be calculated. This may be accomplished much more reliably using fixed-point arithmetic. Use of this arithmetic on the Cray-1 computer is illustrated.

Chaotic Dynamics · Physics 2007-05-23 Charles F. F. Karney

In this article we derive a simple twisted relative trace formula.

Number Theory · Mathematics 2015-07-17 Heekyoung Hahn

Notions of guardedness serve to delineate the admissibility of cycles, e.g. in recursion, corecursion, iteration, or tracing. We introduce an abstract notion of guardedness structure on a symmetric monoidal category, along with a…

Logic in Computer Science · Computer Science 2018-02-27 Sergey Goncharov , Lutz Schröder

In order to design and implement tracers, one must decide what exactly to trace and how to produce this trace. On the one hand, trace designs are too often guided by implementation concerns and are not as useful as they should be. On the…

Software Engineering · Computer Science 2007-05-23 Mireille Ducasse , Ludovic Langevine , Pierre Deransart

A Lie group G is called a trace class group if for every irreducible unitary representation R of G and every C-infinity function f with compact support the operator R(f) is of trace class. In this note we prove that the semidirect product…

Representation Theory · Mathematics 2019-04-29 Gerrit van Dijk

A scheme is presented for accurately propagating the gravitational field constraints in finite difference implementations of numerical relativity. The method is based on similar techniques used in astrophysical magnetohydrodynamics and…

Astrophysics · Physics 2009-11-10 David L. Meier

Let $G$ be a connected reductive group over $\mathbb{Q}$. In this paper, we will stabilize the local trace formula, in particular, we construct the explicit form of the spectral side of stable local trace formula in the Archimedean case,…

Number Theory · Mathematics 2018-06-07 Zhifeng Peng

In this note we study the problem of evaluating the trace of $f(T)-f(R)$, where $T$ and $R$ are contractions on Hilbert space with trace class difference, i.e., $T-R\in\boldsymbol{S}_1$ and $f$ is a function analytic in the unit disk ${\Bbb…

Functional Analysis · Mathematics 2017-05-16 Mark Malamud , Hagen Neidhardt , Vladimir Peller

The length spectra of flat three-dimensional dielectric resonators of circular shape were determined from a microwave experiment. They were compared to a semiclassical trace formula obtained within a two-dimensional model based on the…

Optics · Physics 2012-02-03 S. Bittner , E. Bogomolny , B. Dietz , M. Miski-Oglu , A. Richter

Based on quantum graph theory we establish that the ray-splitting trace formula proposed by Couchman {\it et al.} (Phys. Rev. A {\bf 46}, 6193 (1992)) is exact for a class of one-dimensional ray-splitting systems. Important applications in…

Quantum Physics · Physics 2016-09-08 Y. Dabaghian , R. V. Jensen , R. Blümel

We obtain general trace formulae in the case of perturbation of self-adjoint operators by self-adjoint operators of class $\bS_m$, where $m$ is a positive integer. In \cite{PSS} a trace formula for operator Taylor polynomials was obtained.…

Functional Analysis · Mathematics 2010-08-11 Alexei Aleksandrov , Vladimir Peller