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We consider self-adjoint fourth order operators on the unit interval with the Dirichlet type boundary conditions. For such operators we determine few trace formulas, similar to the case of Gelfand--Levitan formulas for second order…

Mathematical Physics · Physics 2014-12-17 Andrey Badanin , Evgeny Korotyaev

A first order trace formula is obtained for a higher-order differential operator on a segment in the case where the perturbation is an operator of multiplication by a finite complex-valued measure. For the operators of even order $n\ge4$ a…

Spectral Theory · Mathematics 2019-05-22 E. D. Galkovskii , A. I. Nazarov

The main result of this paper is a description of the space of functions on the unit circle, for which Krein's trace formula holds for arbitrary pairs of unitary operators with trace class difference. This space coincides with the space of…

Functional Analysis · Mathematics 2016-11-08 Aleksei Aleksandrov , Vladimir Peller

The main result of the paper is a description of the class of functions on the unit circle, for which Krein's trace formula holds for arbitrary pairs of unitary operators with trace class difference. We prove that this class of functions…

Functional Analysis · Mathematics 2016-04-01 Alexei Aleksandrov , Vladimir Peller

We obtain a trace formula for algebraic differential operators which the corresponding analytic results have been proved by M. Engeli and G. Felder

Algebraic Geometry · Mathematics 2012-02-15 Hou-Yi Chen

A first order trace formula is obtained for a regular differential operator perturbed by a finite signed measure multiplication operator.

Spectral Theory · Mathematics 2016-12-08 E. D. Galkovskii , A. I. Nazarov

Koplienko gave a trace formula for perturbations of self-adjoint operators by operators of Hilbert-Schmidt class $\mathcal{B}_2(\mathcal{H})$. Recently Gesztesy, Pushnitski and Simon gave an alternative proof of the trace formula when the…

Functional Analysis · Mathematics 2012-04-03 Arup Chattopadhyay , Kalyan B. Sinha

In this paper we give a trace formula for Hecke operators acting on the cohomology of a Fuchsian group of finite covolume, with coefficients in a module $V$. The proof is based on constructing an operator whose trace on $V$ equals the…

Number Theory · Mathematics 2023-06-21 Alexandru A. Popa

The paper establishes the Krein and Koplienko trace formulas for multivariable operator functions on symmetrically normed ideals of bounded operators. Results are proved for self-adjoint and maximal dissipative operators. They cover both…

Functional Analysis · Mathematics 2026-05-18 Arup Chattopadhyay , Saikat Giri , Chandan Pradhan , Alexandr Usachev

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

We obtain a simple formula for the first-order trace of a regular differential operator on a segment perturbated by a multiplication operator. The main analytic ingredient of the proof is an improvement of the Tamarkin equiconvergence…

Spectral Theory · Mathematics 2016-04-07 Alexander I. Nazarov , Dmitriy M. Stolyarov , Pavel B. Zatitskiy

Our goal is to extend the theory of the spectral shift function to the case where only the difference of some powers of the resolvents of self-adjoint operators belongs to the trace class. As an example, we consider a couple of Dirac…

Spectral Theory · Mathematics 2007-05-23 D. R. Yafaev

We give a new, simple proof of the trace formula for Hecke operators on modular forms for finite index subgroups of the modular group. The proof uses algebraic properties of certain universal Hecke operators acting on period polynomials of…

Number Theory · Mathematics 2017-06-09 Alexandru A. Popa

In this paper, the regularized trace formulas for a diffusion operator which include conformable fractional derivatives of order {\alpha} (0<{\alpha \leq 1}) is obtained.

Spectral Theory · Mathematics 2023-01-03 Yaşar Çakmak

We extend the well-known trace formula for Hill's equation to general one-dimensional Schr\"odinger operators. The new function $\xi$, which we introduce, is used to study absolutely continuous spectrum and inverse problems.

Spectral Theory · Mathematics 2008-02-03 Fritz Gesztesy , Helge Holden , Barry Simon , Zhong Xin Zhao

We obtain a new simple formula for the regularized traces of singular ordinary differential operators.

Spectral Theory · Mathematics 2016-04-07 Alexander I. Nazarov , Dmitriy M. Stolyarov , Pavel B. Zatitskiy

We establish higher order trace formulas for pairs of contractions along a multiplicative path generated by a self-adjoint operator in a Schatten-von Neumann ideal, removing earlier stringent restrictions on the kernel and defect operator…

Functional Analysis · Mathematics 2025-08-05 Arup Chattopadhyay , Chandan Pradhan , Anna Skripka

Trace formula is an important method to study the Langlands program. Arthur obtains the existence of stable trace formula for connected reductive group. In this paper, we will give the explicit coarse trace formula of GL(4). In general…

Representation Theory · Mathematics 2025-09-09 Haoyang Wang , Xinghua Cui , Zhifeng Peng

We prove that the so-called first trace formula holds for all Schr\"odinger operators on the line with real-valued integrable potentials.

Spectral Theory · Mathematics 2020-06-23 Rostyslav Hryniv , Yaroslav Mykytyuk

This paper considers Lieb-Thirring inequalities for higher order differential operators. A result for general fourth-order operators on the half-line is developed, and the trace inequality tr((-Delta)^2 - C^{HR}_{d,2} / (|x|^4) -…

Spectral Theory · Mathematics 2009-01-11 Tomas Ekholm , Andreas Enblom
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