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An operator $H=H_{0}+V$ where $H_{0}=i^{-N} \partial^{N}$ ($N$ is arbitrary) and $V$ is a differential operator of order $N-1$ with coefficients decaying sufficiently rapidly at infinity is considered in the space $L^2(\Bbb R)$. The goal of…

谱理论 · 数学 2011-04-29 J. Ostensson , D. R. Yafaev

For a given Lipschitz domain $\Omega$, it is a classical result that the trace space of $W^{1,p}(\Omega)$ is $W^{1-1/p,p}(\partial\Omega)$, namely any $W^{1,p}(\Omega)$ function has a well-defined $W^{1-1/p,p}(\partial\Omega)$ trace on its…

偏微分方程分析 · 数学 2021-07-16 Qiang Du , Xiaochuan Tian , Cory Wright , Yue Yu

On a compact manifold with boundary, consider the realization B of an elliptic, possibly pseudodifferential, boundary value problem having a spectral cut (a ray free of eigenvalues), say R_-. In the first part of the paper we define and…

偏微分方程分析 · 数学 2007-09-05 Anders Gaarde , Gerd Grubb

The aim of this paper is to show that various known characterizations of traces on classical pseudodifferentials operators (PsiDOs) can actually be obtained by very elementary considerations on PsiDOs, using only basic properties of these…

偏微分方程分析 · 数学 2010-09-17 Raphael Ponge

Observing that the logarithm of a product of two elliptic operators differs from the sum of the logarithms by a finite sum of operator brackets, we infer that regularised traces of this difference are local as finite sums of noncommutative…

数学物理 · 物理学 2009-04-27 Marie-Francoise Ouedraogo , Sylvie Paycha

We prove trace identities for commutators of operators, which are used to derive sum rules and sharp universal bounds for the eigenvalues of periodic Schroedinger operators and Schroedinger operators on immersed manifolds. In particular, we…

谱理论 · 数学 2009-03-04 Evans M. Harrell , Joachim Stubbbe

In this note, we derive explicitly the local relative trace formula for the symmetric space F*\SL(2,F) at the level of Lie algebras, where F is a p-adic field of residue characteristic greater than two and F* is the set of invertible…

表示论 · 数学 2008-12-01 Jonathan Sparling

For a Dirac-type operator D with a spectral boundary condition, the associated heat operator trace has an expansion in powers and log-powers of t. Some of the log-coefficients vanish in the Atiyah-Patodi-Singer product case. We here…

偏微分方程分析 · 数学 2007-05-23 Gerd Grubb

We consider Schr\"odinger operators with complex-valued decreasing potentials on the half-line. Such operator has essential spectrum on the half-line plus eigenvalues (counted with algebraic multiplicity) in the complex plane without the…

数学物理 · 物理学 2019-10-02 Evgeny Korotyaev

In this paper we obtain the weak type (1,1) boundedness of Calderon-Zygmund operators acting over operator-valued functions. Our main tools for its solution are a noncommutative form of Calderon-Zygmund decomposition in conjunction with a…

经典分析与常微分方程 · 数学 2007-05-23 Javier Parcet

For $2a$-order strongly elliptic operators $P$ generalizing $(-\Delta )^a$, $0<a<1$, the treatment of the homogeneous Dirichlet problem on a bounded open set $\Omega \subset R^n$ by pseudodifferential methods, has been extended in a recent…

偏微分方程分析 · 数学 2022-12-23 Gerd Grubb

We determine the asymptotic behavior of twisted traces of singular moduli with a power-saving error term in both the discriminant and the order of the pole at $i\infty$. Using this asymptotic formula, we obtain an exact formula for these…

数论 · 数学 2022-06-06 Nickolas Andersen , William Duke

We identify Melrose's suspended algebra of pseudodifferential operators with a subalgebra of the algebra of parametric pseudodifferential operators with parameter space $\R$. For a general algebra of parametric pseudodifferential operators,…

泛函分析 · 数学 2007-05-23 Matthias Lesch , Markus J. Pflaum

Koplienko \cite{Ko} found a trace formula for perturbations of self-adjoint operators by operators of Hilbert-Schmidt class $\mathcal{B}_2(\mathcal{H})$. Later, Neidhardt introduced a similar formula in the case of pair of unitaries…

泛函分析 · 数学 2024-04-04 Arup Chattopadhyay , Soma Das , Chandan Pradhan

On a countable tree $T$, allowing vertices with infinite degree, we consider an arbitrary stochastic irreducible nearest neighbour transition operator $P$. We provide a boundary integral representation for general eigenfunctions of $P$ with…

泛函分析 · 数学 2022-06-10 Massimo A. Picardello , Wolfgang Woess

We prove that the local $\mathbb{A}^1$-degree of a polynomial function at an isolated zero with finite separable residue field is given by the trace of the local $\mathbb{A}^1$-degree over the residue field. This fact was originally…

代数拓扑 · 数学 2021-01-21 Thomas Brazelton , Robert Burklund , Stephen McKean , Michael Montoro , Morgan Opie

We show that the noncommutative residue density, resp. the cut-off regularised integral are the only closed linear, resp. continuous closed linear forms on certain classes of symbols. This leads to alternative proofs of the uniqueness of…

算子代数 · 数学 2007-06-19 Sylvie Paycha

Let $\Sigma\subset\mathbb{R}^d$ be a $C^\infty$-smooth closed compact hypersurface, which splits the Euclidean space $\mathbb{R}^d$ into two domains $\Omega_\pm$. In this note self-adjoint Schr\"odinger operators with $\delta$ and…

谱理论 · 数学 2024-06-17 Jussi Behrndt , Matthias Langer , Vladimir Lotoreichik

We provide sufficient conditions under which the difference of the resolvents of two higher-order operators acting in $\R^N$ belongs to trace classes $\cC^p$. We provide explicit estimates on the norm of the resolvent difference in terms of…

偏微分方程分析 · 数学 2007-05-23 G. Barbatis

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…

算子代数 · 数学 2015-01-27 Sara Azzali , Cyril Lévy , Carolina Neira Jiménez , Sylvie Paycha