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This paper introduces a statistical treatment of inverse problems constrained by models with stochastic terms. The solution of the forward problem is given by a distribution represented numerically by an ensemble of simulations. The goal is…

最优化与控制 · 数学 2019-04-17 Emil M. Constantinescu , Noemi Petra , Julie Bessac , Cosmin G. Petra

The classical Calder\'on problem with partial data is known to be log-log stable in some special cases, but even the uniqueness problem is open in general. We study the partial data stability of an analogous inverse fractional conductivity…

偏微分方程分析 · 数学 2025-05-27 Giovanni Covi , Antti Kujanpää , Jesse Railo

The recent demonstration of resonant tunneling transport in nitride semiconductors has led to an invigorated effort to harness this quantum transport regime for practical applications. In polar semiconductors, however, the interplay between…

应用物理 · 物理学 2023-03-16 Jimy Encomendero , Vladimir Protasenko , Farhan Rana , Debdeep Jena , Huili Grace Xing

This work investigates both direct and inverse problems of the variable-exponent sub-diffusion model, which attracts increasing attentions in both practical applications and theoretical aspects. Based on the perturbation method, which…

数值分析 · 数学 2025-01-31 Zhiyuan Li , Chunlong Sun , Xiangcheng Zheng

The electrochemical doping transformation in organic semiconductor devices is studied in application to light-emitting cells. It is shown that the device performance can be significantly improved by utilizing new fundamental properties of…

材料科学 · 物理学 2012-09-14 V. Bychkov , P. Matyba , V. Akkerman , M. Modestov , D. Valiev , G. Brodin , C. K. Law , M. Marklund , L. Edman

In this work, methods to determine more accurate doping profiles in semiconductors is explored where trap-induced artifacts such as hysteresis and doping artifacts are observed. Specifically in CIGS, it is shown that this fast…

仪器与探测器 · 物理学 2017-07-17 P. K. Paul , J. Bailey , G. Zapalac , A. R. Arehart

In this paper, one dimentional conformable fractional Dirac-type integro differential system is considered. The asymptotic formulae for the solutions, eigenvalues and nodal points are obtained. We investigate the inverse nodal problem and…

数学物理 · 物理学 2019-11-20 Baki Keskin

Doping and disorder are inseparable in the superconducting cuprates. Assuming the simplest possible disordered doping, we construct a semiphenomenological model and analyze its experimental consequences. Among the affected experimental…

超导电性 · 物理学 2009-10-31 Ivar Martin , Alexander V. Balatsky

Inverse problems arise in situations where data is available, but the underlying model is not. It can therefore be necessary to infer the parameters of the latter starting from the former. Statistical mechanics offers a toolbox of…

统计力学 · 物理学 2025-07-04 Stefano Bae , Dario Bocchi , Luca Maria Del Bono , Luca Leuzzi

Doping asymmetry is a notable phenomenon with semiconductors and a particularly longstanding challenge limiting the applications of most wide-band-gap semiconductors, which are inherent of spontaneous heavy n- or p-type doping because of…

材料科学 · 物理学 2023-07-14 Kai Liu , Zhibin Yi , Guangfu Luo

In recent years we have witnessed a growth in mathematics for deep learning, which has been used to solve inverse problems of partial differential equations (PDEs). However, most deep learning-based inversion methods either require paired…

数值分析 · 数学 2024-04-23 Enze Jiang , Jishen Peng , Zheng Ma , Xiong-Bin Yan

In this paper, we consider the inverse problem of determining some coefficients within a coupled nonlinear parabolic system, through boundary observation of its non-negative solutions. In the physical setup, the non-negative solutions…

偏微分方程分析 · 数学 2024-04-23 Hongyu Liu , Catharine W. K. Lo

The work is devoted to the study of the inverse problem of determining the right-hand side of a nonlinear subdiffusion equation with a Caputo derivative with respect to time. Nonlinearity of the equation means that the right-hand side of…

偏微分方程分析 · 数学 2025-06-16 R. R. Ashurov , O. T. Mukhiddinova

Parameter identification problems for partial differential equations are an important subclass of inverse problems. The parameter-to-state map, which maps the parameter of interest to the respective solution of the PDE or state of the…

数值分析 · 数学 2020-02-13 Heiko Hoffmann , Anne Wald

For parameter identification problems the Fr\'echet-derivative of the parameter-to-state map is of particular interest. In many applications, e.g. in seismic tomography, the unknown quantity is modeled as a coefficient in a linear…

偏微分方程分析 · 数学 2019-01-30 Thies Gerken , Simon Grützner

We consider the inverse problem of reconstructing the optical parameters of the radiative transfer equation (RTE) from boundary measurements in the diffusion limit. In the diffusive regime (the Knudsen number $\mathsf{Kn}\ll 1$), the…

偏微分方程分析 · 数学 2018-08-08 Ru-Yu Lai , Qin Li , Gunther Uhlmann

We consider the inverse problem of finding matrix valued edge or nodal quantities in a graph from measurements made at a few boundary nodes. This is a generalization of the problem of finding resistors in a resistor network from voltage and…

We discuss the inverse problem of determining the, possibly anisotropic, conductivity of a body $\Omega\subset\mathbb{R}^{n}$ when the so--called Dirichlet-to-Neumann map is locally given on a non empty portion $\Gamma$ of the boundary…

偏微分方程分析 · 数学 2012-02-27 Giovanni Alessandrini , Romina Gaburro

This article is devoted to forward and inverse problems associated with time-independent semilinear nonlocal wave equations. We first establish comprehensive well-posedness results for some semilinear nonlocal wave equations. The main…

偏微分方程分析 · 数学 2024-02-09 Yi-Hsuan Lin , Teemu Tyni , Philipp Zimmermann

In this paper, we use the theory of symmetric Dirichlet forms to give a probabilistic interpretation of Calder\'{o}n's inverse conductivity problem in terms of reflecting diffusion processes and their corresponding boundary trace processes.

偏微分方程分析 · 数学 2015-03-27 Petteri Piiroinen , Martin Simon