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We establish connections between different approaches to inverse spectral problems: the classical Gelfand--Levitan theory, the Krein method, the Simon theory, the approach proposed by Remling and the Boundary Control method. We show that…

偏微分方程分析 · 数学 2025-05-30 S. A. Avdonin , V. S. Mikhaylov

We consider applications of the Boundary Control (BC) method to generalized spectral estimation problems and to inverse source problems. We derive the equations of the BC method for this problems and show that solvability of this equations…

最优化与控制 · 数学 2025-09-24 S. A. Avdonin , A. S. Mikhaylov , V. S. Mikhaylov

The BC-method is an approach to inverse problems based on their relations to the boundary control theory. The paper provides a simple and physically transparent description of the method in the case of dynamical inverse data given at a…

最优化与控制 · 数学 2017-09-13 M. I. Belishev

We establish relationships between the classical moments problems which are problems of a construction of a measure supported on a real line, on a half-line or on an interval from prescribed set of moments with the Boundary control approach…

谱理论 · 数学 2025-05-13 Alexander Mikhaylov , Victor Mikhaylov

We show that Boundary Control method, a method for hyperbolic inverse problems, is also capable of dealing directly with certain classes of elliptic and parabolic Inverse Boundary Value Problems; thus pointing towards Boundary Control…

综合数学 · 数学 2025-04-10 Dimitra Kyriakopoulou

In this paper we develop numerical algorithm for solving inverse problem for the wave equation using Boundary Control method. The results of numerical experiments are represented.

数学物理 · 物理学 2009-09-30 Leonid Pestov , Victoria Bolgova , Oksana Kazarina

We deal with two dynamical systems associated with a Riemannian manifold with boundary. The first one is a system governed by the scalar wave equation, the second is governed by the Maxwell equations. Both of the systems are controlled from…

数学物理 · 物理学 2015-06-19 M. I. Belishev , M. N. Demchenko

Solving inverse problems by dynamical variant of the BC-method is basically reduced to inverting the connecting operator $C^T$ of the dynamical system, for which the problem is stated. Realizing the method numerically, one needs to invert…

数值分析 · 数学 2021-07-09 M. I. Belishev , N. A. Karazeeva

We formulate the immersed-boundary method (IBM) as an inverse problem. A control variable is introduced on the boundary of a larger domain that encompasses the target domain. The optimal control is the one that minimizes the mismatch…

最优化与控制 · 数学 2019-09-04 Jianfeng Yan , Jason Edward Hicken

In this review, we extend the Boundary Control method\, -- \,an approach to inverse problems based on control theory for dynamical systems \, -- \,to inverse problems for discrete dynamical systems. We apply our results to classical moment…

偏微分方程分析 · 数学 2025-05-09 Alexander Mikhaylov , Victor Mikhaylov

We study the inverse problems for the second order hyperbolic equations of general form with time-dependent coefficients assuming that the boundary data are given on a part of the boundary. The main result of this paper is the determination…

偏微分方程分析 · 数学 2017-07-18 Gregory Eskin

A novel method to solve inverse problems for the wave equation is introduced. The method is a combination of the boundary control method and an iterative time reversal scheme, leading to adaptive imaging of coefficient functions of the wave…

偏微分方程分析 · 数学 2007-05-23 Kenrick Bingham , Yaroslav Kurylev , Matti Lassas , Samuli Siltanen

Comparison of numerical performances of two methods for coefficient inverse problems is described. The first one is the classical Gel'fand-Levitan-Krein equation method, and the second one is the recently developed approximately globally…

This review examines classical and recent results on controllability and inverse problems for hyperbolic and dispersive equations with dynamic boundary conditions. We aim to illustrate the applicability of Carleman estimates to establish…

最优化与控制 · 数学 2025-05-22 S. E. Chorfi , L. Maniar , R. Morales

The Bertrand's theorem can be formulated as the solution of an inverse problem for a classical unidimensional motion. We show that the solutions of these problems, if restricted to a given class, can be obtained by solving a numerical…

数学物理 · 物理学 2016-08-16 Yves Grandati , Alain Bérard , Ferhat Menas

We show that a complete Riemannian manifold, as well as time independent smooth lower order terms appearing in a first order symmetric perturbation of a Riemannian wave operator can be uniquely recovered, up to the natural obstructions,…

偏微分方程分析 · 数学 2025-05-01 Teemu Saksala , Andrew Shedlock

There are two main approaches to solve inverse coefficient determination problems for wave equations: the Boundary Control method and an approach based on geometric optics. These notes focus on the Boundary Control method, but we will have…

偏微分方程分析 · 数学 2026-04-14 Medet Nursultanov , Lauri Oksanen

The discrete Schr\"odinger equation with the Dirichlet boundary condition is considered on a half-line lattice when the potential is real valued and compactly supported. The inverse problem of recovery of the potential from the so-called…

谱理论 · 数学 2018-05-22 Tuncay Aktosun , Vassilis G. Papanicolaou

Inverse problems are inherently ill-posed, suffering from non-uniqueness and instability. Classical regularization methods provide mathematically well-founded solutions, ensuring stability and convergence, but often at the cost of reduced…

数值分析 · 数学 2026-01-21 Markus Haltmeier , Gyeongha Hwang

We present a novel framework for optimal control in both classical and quantum systems. Our approach leverages the Dirac--Bergmann algorithm: a systematic method for formulating and solving constrained dynamical systems. In contrast to the…

量子物理 · 物理学 2025-11-25 Davit Aghamalyan , Aleek Maity , Varun Narasimhachar , V V Sreedhar
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