نتایج جستجو برای: inverse problems

تعداد نتایج: 663063  

1999
George S. Dulikravich Brian H. Dennis

This paper presents a limited survey of methods and multidisciplinary applications of various techniques for the solution of several classes of inverse problems as developed and practiced by our research team. Sketches of solution methods for inverse problems of shape determination, boundary conditions determination, sources determination, and physical properties determination are presented fro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ریاضی 1391

در این پایان نامه مباحثی در مورد نیم گروه های معکوس توپولوژیکی اولیه (مطلقا) h-بسته و فشرده (شمارایی) بدست می آوریم و ساختار نیم گروه های معکوس توپولوژی فشرده شمارایی و نیم گروه های معکوس توپولوژی همنهشت-آزاد را توصیف می کنیم و نشان می دهیم که نیم گروه دو دوری نمی تواند در نیم گروه معکوس توپولوژی فشرده شمارایی نشانده شود. we present some discussions about compact (countably) and (absolutely) h...

2008
Allan Greenleaf Yaroslav Kurylev Matti Lassas Gunther Uhlmann

We describe recent theoretical and experimental progress on making objects invisible. Ideas for devices that would have once seemed fanciful may now be at least approximately realized physically, using a new class of artificially structured materials, metamaterials. The equations that govern a variety of wave phenomena, including electrostatics, electromagnetism, acoustics and quantum mechanics...

2000
STEVEN N. EVANS PHILIP B. STARK

What mathematicians, scientists, engineers, and statisticians mean by \inverse problem" di ers. For a statistician, an inverse problem is an inference or estimation problem. The data are nite in number and contain errors, as they do in classical estimation or inference problems, and the unknown typically is in nite-dimensional, as it is in nonparametric regression. The additional complication i...

Journal: :SIAM Review 1998
Moody T. Chu

A collection of inverse eigenvalue problems are identi ed and classi ed according to their characteristics Current developments in both the theoretic and the algorithmic aspects are summarized and reviewed in this paper This exposition also reveals many open questions that deserves further study An extensive bibliography of pertinent literature is attached

2006
Anestis Antoniadis

In this paper, we fo us on nonparametri estimators in inverse problems for Poisson pro esses involving the use of wavelet de ompositions. Adopting an adaptive wavelet Galerkin dis retization we nd that our method ombines the well know theoreti al advantages of wavelet-vaguelette de ompositions for inverse problems in terms of optimally adapting to the unknown smoothness of the solution, togethe...

2017
Marc Bonnet A. Constantinescu Marc BONNET Andrei CONSTANTINESCU

This article is devoted to some inverse problems arising in the context of linear elasticity, namely the identification of distributions of elastic moduli, model parameters, or buried objects such as cracks. These inverse problems are considered mainly for threedimensional elastic media under equilibrium or dynamical conditions, and also for thin elastic plates. The main goal is to overview som...

2002
Graham C. Goodwin

Many design questions in telecommunications, signal processing and control can be formulated as inverse problems. Moreover, there is a surprising degree of similarity in the solutions to the problems from diverse areas. Here we will outline some basic approaches to solving inverse problems and draw connections between different areas of application. Inverse problems become particularly interest...

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