Subject:
IPNet Digest: Volume 15, Number 05
From:
"IPNet (Inverse Problems Network)"
Date:
Wed, 14 Oct 2009 10:25:08 -0400
To:
Inverse Problems Network
IPNet Digest Volume 16, Number 05 October 14, 2009
Today's Editor: Patricia K. Lamm, Michigan State University
Today's Topics:
Summer School: Computational Solution of Inverse Problems
Workshop: Nonlinear Physics -- Theory and Experiment
New Book: Nonlinear Least Squares for Inverse Problems
PhD Studentships in Inverse Problems: Tomography (RTT, EIT)
Postdoc: Reconstruction Methods for 3D Tomography (EIT)
Postdoc: Surface Waves, Early Tsunami Detection
Table of Contents: Inverse Problems
Table of Contents: Journal of Inverse and Ill-posed Problems
Table of Contents: Nonlinear Analysis: Modelling and Control
Submissions for IPNet Digest:
Mail to ipnet-digest@math.msu.edu
Information about IPNet:
http://www.math.msu.edu/ipnet
-----------------------------
Subject: Summer school on computational solution of inverse problemsFrom: Samuli Siltanen
Date: Thu, 24 Sep 2009
Summer school for graduate students and postdocs:
"Computational solution of inverse problems" (FICS 2010)
University of Helsinki, Finland
June 28 - July 2, 2010
There will be four minicourses:
Nuutti Hyvönen (Helsinki University of Technology, Finland):
Factorization and source support methods for electrical impedance
tomography
Jari Kaipio (University of Auckland, New Zealand):
Bayesian framework for inverse problems
Barbara Kaltenbacher (University of Graz, Austria):
Iterative solution methods for inverse problems
Kim Knudsen (Technical University of Denmark):
D-bar methods for nonlinear inverse problems.
In addition, participants can give contributed talks.
More information is available at the school website
https://wiki.helsinki.fi/display/mathstatKurssit/FICS+2010
-----------------------------
Subject: Workshop "Nonlinear Physics.Theory and Experiment. VI."
From: Maria Concetta Gerardi
Date: Mon, 5 Oct 2009
NONLINEAR PHYSICS. THEORY AND EXPERIMENT. VI
Gallipoli, June 23-July 3, 2010
FIRST ANNOUNCEMENT
The theory of solitons which began as an investigation of a very
interesting but particular class of nonlinear phenomena in physics now
involves a broad variety of mathematical methods that allow one to study
a wide range of phenomena and problems that arise in physics, technology,
biology and pure and applied mathematics.
The purpose of the Workshop is to bring together qualified
scientists and young researchers who study nonlinear physics,
mathematics or science. A goal of the meeting is to offer researchers
the opportunity to discuss recent developments and achievements, as
well as to discuss future perspectives, in the fascinating natural
environment of Southern Italy.
As stated in the title of the Workshop, emphasis will be
placed on both theory and experiment. An objective is to offer to the
nonlinear scientific community a truly interdisciplinary workshop as a
privileged place for scientific interaction among theoreticians and
experimentalists. The organizers of the Workshop have observed the
increasing relevance of solitons and other nonlinear effects in
laboratory experiments and applications. Applications to nonlinear
optics, molecular dynamics, fluid dynamics, plasma waves,
hydrodynamics, quantum electronics, solid state physics, string
theory, gravity etc. are of interest. Mathematical approaches
including continuous and discrete nonlinear systems, classical and
quantum, will be considered. Specific theoretical topics can cover
inverse scattering, hamiltonian structures, geometrical approaches,
Painlevé property, symmetries... The list is to be considered open,
especially to potentially new mathematical methods and applications.
This Workshop is part of thirty years of active participation
by the University of Lecce (now University of Salento) in developing
international scientific cooperation in Nonlinear Science. A meeting
entitled "Nonlinear Evolution Equations and Dynamical Systems"
(NEEDS for short) was organized in Lecce in 1979. Successively three
other NEEDS Workshops were organized in Gallipoli in 1985, 1991 and
1993, the Workshops entitled "Nonlinear Physics. Theory and
Experiment" in Gallipoli in 1995, 2002, 2004, 2006 and 2008, and a
Workshop entitled "Nonlinearity, Integrability and All That. Twenty
Years After NEEDS'79" in Gallipoli in 1999.
The Workshop will take place from Wednesday June 23 (arrival
day) to Saturday July 3, (departure day), 2010, at the Ecoresort Le
Sirené (Gallipoli Bay) near Lecce, Italy, with all needed facilities
as conference and lecture hall, by a sandy beach in a beautiful
setting.
An all-inclusive fee of Euro 1.150,00 will cover the cost of
registration (Euro 150), meals and lodging during the Workshop (in
double occupancy rooms with private facilities) and the transportation
from Lecce terminal or Brindisi International Airport to Gallipoli and
back (for participants arriving on June 23 and leaving on July 3). The
all-inclusive rate for accompanying persons is Euro 1.000.
Persons interested in participating will receive the second
announcement with additional details and the registration form by
contacting the Workshop Secretary or checking at
http://www.fisica.unisalento.it/nonlinear6/
(to appear in October 2009).
Organizers: Marco Boiti and Flora Pempinelli, and Boris
Konopelchenko, Dipartimento di Fisica, Università del Salento, 73100 Lecce,
marco.boiti@le.infn.it, flora.pempinelli@le.infn.it,
konopel@le.infn.it.
Co-organizers: Luis Martinez-Alonso, Departamento de Fisica
Teorica II, Universidad Complutense, Madrid (Spain), luism@fis.ucm.es
; Andrei K. Pobgrebkov, Steklov Mathematical Institute, Moscow,
pogreb@mi.ras.ru.
Workshop Secretariat: Maria Concetta Gerardi, Dipartimento di Fisica,
Università del Salento, 73100 Lecce, Italy; Phone and FAX +39 0832
297467, also FAX +39 0832 297505,
maria.concetta.gerardi@le.infn.it.
Sponsors: Università del Salento - Consorzio EINSTEIN - INFN
Submitted by: Maria Concetta Gerardi Segretaria Scientifica
Dip. Fisica Phone & Fax +39 0832 297467 e-mail
maria.concetta.gerardi@le.infn.it
http://www.fisica.unisalento.it/Mconcetta
-----------------------------
Subject: New book on inverse problems
From: Guy Chavent
Date: Mon, 12 Oct 2009
NEW BOOK:
Nonlinear Least Squares for Inverse Problems,
Theoretical Foundations and Step-by-Step Guide for Applications
Guy Chavent
with 24 figures.
ISSN 1434-8322
ISBN 978-90-481-2784-9 e-ISBN 978-90-481-2785-6
DOI 10.1007/978-90-481-2785-6
Springer Dordrecht Heidelberg London New York
Library of Congress Control Number: 2009927706
http://www.springer.com/math/book/978-90-481-2784-9
This book provides an introduction into the least squares resolution
of nonlinear inverse problems. The first goal is to develop a
geometrical theory to analyze nonlinear least square (NLS) problems
with respect to their quadratic wellposedness, i.e. both wellposedness
and optimizability. Using the results, the applicability of various
regularization techniques can be checked. The second objective of the
book is to present frequent practical issues when solving NLS
problems. Application oriented readers will find a detailed analysis
of problems on the reduction to finite dimensions, the algebraic
determination of derivatives (sensitivity functions versus adjoint
method), the determination of the number of retrievable parameters,
the choice of parametrization (multiscale, adaptive) and the
optimization step, and the general organization of the inversion
code. Special attention is paid to parasitic local minima, which can
stop the optimizer far from the global minimum: multiscale
parametrization is shown to be an efficient remedy in many cases, and
a new condition is given to check both wellposedness and the absence
of parasitic local minima.
For readers that are interested in projection on non-convex sets, Part
II of this book presents the geometric theory of quasi-convex and
strictly quasi-convex sets. Quasi-convex sets can be recognized by
their finite curvature and limited deflection and possess a
neighborhood where the projection is well-behaved.
Throughout the book, each chapter starts with an overview of the
presented concepts and results.
-----------------------------
Subject: Two PhD studentships
From: Bill Lionheart
Date: Mon, 28 Sep 2009
We have two funded PhD studentships in inverse problems available to
start as soon as possible at the University of Manchester
The first project is to investigate the potential for combining X-ray
scatter information and X-ray tomographic information during
simultaneous data acquisition in Real-Time Tomography (RTT) systems for
the detection of explosive materials. The main purpose is to explore the
potential for combining high speed scatter and transmission tomography
systems for automated explosives detection. The position is in
collaboration with Rapiscan Systems and is open to any suitable
qualified candidate
The second is on reconstruction of Electrical Impedance Tomography lung
images. Monitoring lungs during mechanical ventilation is an important
application of EIT attracting considerable attention from the intensive
care community. This project is funded by an EPSRC CASE studentship with
Philips Research and requires UK residency (see website for details).
Details of these opportunities are can be seen on
http://www.maths.manchester.ac.uk/postgraduate/pgadmission/funding.html
Submitted by: Bill Lionheart, University of Manchester
http://www.maths.manchester.ac.uk/~bl
-----------------------------
Subject: Postdoc in Reconstruction Methods for 3D Electrical
Impedance Tomography
From: Per Christian Hansen
Date: Wed, 2 Sep 2009
Postdoc in Reconstruction Methods for 3D Electrical Impedance Tomography
A PostDoc position in Reconstruction Methods for 3D Electical Impedance
Tomography is available from January 1, 2010, with a duration of 1 year
and a possible extension to 2 years. The project is a collaboration
between DTU Informatics and DTU Mathematics at the Technical University
of Denmark. A full description is available at:
http://www.dtu.dk/English/About_DTU/vacancies.aspx?guid=896df604-37f7-4c
25-8c0f-c84f11d2b6e1
The aim of this project is to develop, implement, and investigate fast
algorithms for 3D Electrical Impedance Tomography (EIT). The underlying
non-linear mathematical problem is severely ill-posed, and hence a
useful reconstruction algorithm must incorporate prior information and
regularization. In this project we will develop both the necessary
mathematical theory for a robust reconstruction algorithm and an
efficient numerical implementation.
The research will involve:
- Development of theory for efficient numerical computations for EIT in
3D.
- Numerical implementations of reconstruction algorithms.
- Test of numerical algorithms on collected data.
The candidate should have a background in applied mathematics,
electrical engineering, or scientific computing and a PhD degree (or
equivalent), and should demonstrate qualifications or interests in the
following:
- Mathematical theory for inverse problems.
- Numerical methods for large-scale inverse problems.
- Reconstruction methods for EIT.
- Cross-disciplinary research work.
Further information may be obtained from
- Professor Per Christian Hansen, phone: +45 45253097, pch@imm.dtu.dk
- Associate Professor Kim Knudsen, phone: +45 45253026,
k.knudsen@mat.dtu.dk.
You can read more about the two departments at www.imm.dtu.dk and
www.mat.dtu.dk.
The application should be submitted on-line at the homepage no later
than October 15, 2009. Please open the link "apply for this job
online" at the bottom of the page, and fill in the application form
and attach your application and CV. Material that should be given
consideration in the assessment must also be attached.
All interested candidates irrespective of age, gender, race, religion,
or ethnic background are encouraged to apply.
Submitted by: Professor Per Christian Hansen
Section for Scientific Computing
DTU Informatics, Technical University of Denmark
Tel +45 45.25.30.97, Fax +45 45.88.26.73
http://www.imm.dtu.dk/~pch
-----------------------------
Subject: Pos Doc in Surface Waves, Early Tsunami Detection
From: yehuda
Date: Mon, 7 Sep 2009
Post-doctoral Scholarship sponsored by
Technion-Israel Institute of Technology
Department of Civil and Environmental Engineering
Post Doc - Surface Waves in a Compressible Ocean with an Application
to Early Tsunami Detection
Prof. Michael Stiassnie is seeking a suitable qualified student to
undertake a Post-Doctoral study in developing theoretical techniques
to study surface waves in a compressible ocean, under his
supervision.
About Technion:
For more than eight decades, the Technion-Israel Institute of
Technology, which is located in Haifa, has been Israel's primary
technological university and the largest center of applied
research. It is ranked among the leading technological universities in
the world. The Department of Civil and Environmental Engineering has
60 senior faculty members active in research and education, and they
currently supervise the education of ~900 undergraduate students, ~240
master degree students, ~85 doctor students, and ~10 post-doctoral
students.
Project Abstract:
The overwhelming majority of ocean-waves studies ignore the minute
compressibility of the water, which is expected to have, and in most
cases has, negligible effects on the main physical processes. However,
a rather straightforward analysis of the linearized problem in
constant water depth reveals that for any wave period smaller than 4
times the water depth to the speed of sound ratio; accounting for
compressibility gives rise to at least one additional propagating
mode. This is rather different from the situation in an incompressible
ocean, for which only one propagating mode exists. A disturbance at
the ocean floor, such as caused by a submarine earthquake, produces
many different modes. Most of this modes are non-propagating
(evanescent), and of local importance only. However, the
Gravity-Acoustic mode, and the leading Acoustic-Gravity mode propagate
away from the earthquake site, and travel to a great distance. The
Acoustic-Gravity wave travels significantly faster than the
Gravity-Acoustic wave, and thus, is a possible candidate for an early
warning about the approach of the Gravity-Acoustic wave which evolves
into a tsunami when it hits the coast. The main goals of this research
are:
(1) provide a ground-breaking theoretical study of the physics of
surface-waves on a compressible fluid. The relatively small amount of
published material on this topic seems to have left a "vast-territory"
which awaits its ground to be broken; and (2) to investigate the
application of utilizing the Acoustic-Gravity waves for early
detection of tsunami (the Gravity-Acoustic wave). This is of a certain
risk, since it is not clear that, in case of realistic scenarios and
geometries, the free surface-elevation, the flow velocities, or the
pressure of the Acoustic-Gravity waves will be strong enough, compared
to the background noise, to enable their measurement. If however, they
will be found measurable by existing instruments, and enable early
detection of tsunamis, then the high-gain is self evident.
Selection Criteria
1. Ph.D. degree related to fluid-mechanics, obtained not earlier
than 31.12.2007 (essential)
2. Strong analytical and mathematical skills (essential)
3. A good working knowledge of programming (desirable)
4. A good knowledge of English (desirable)
5. Experience in water-waves related research (advantage)
Commencement Date: January 2010 or earlier
Scholarship: Between US$ 18,000 to US$ 30,000 (depending on
qualifications and background) per annum, tax exempt.
Duration: two or three years
Application and Contact
Professor Michael Stiassnie
Department of Civil and Environmental Engineering
Division of Environmental, Water and Agricultural Engineering
Technion-Israel Institute of Technology
Haifa 32000, Israel
Tel: +972-4-8293361 ; Fax: +972-4-8228898
e-mail: miky@tx.technion.ac.il
http://www.technion.ac.il/~cee/stiassnie
-----------------------------
Subject: Inverse Problems, Vol. 25, September & October 2009
From: Emma Avery
Date: Thu, 13 Aug 2009
Inverse Problems September 2009 Volume 25, Issue 9
Table of Contents
Analytical inversion of the Compton transform using the full set of
available projections Voichita Maxim, Mirela Frandes and Remy Prost
Solvability of a problem of integral geometry via an inverse problem
for a transport-like equation and a numerical method
Arif Amirov, Mustafa Yildiz and Zekeriya Ustaoglu
Experimental design and estimation of growth rate distributions in
size-structured shrimp populations H T Banks, Jimena L Davis,
Stacey L Ernstberger, Shuhua Hu, Elena Artimovich and Arun K Dhar
Iteration methods on sideways parabolic equations
Youjun Deng and Zhenhai Liu
Regularization parameter selection methods for ill-posed Poisson
maximum likelihood estimation Johnathan M Bardsley and John Goldes
Efficient solution of a three-dimensional inverse heat conduction
problem in pool boiling
Herbert Egger, Yi Heng, Wolfgang Marquardt and Adel Mhamdi
Numerical studies of the inverse Born series for diffuse waves
Shari Moskow and John C Schotland
Explicit isospectral flows for the AKNS operator on the unit interval
L Amour
Sensitivity computation of the $\ell_{1}$ minimization problem and its
application to dictionary design of ill-posed problems
L Horesh and E Haber
On time reversal mirrors
Albert C Fannjiang
On the Marchenko inverse scattering procedure with partial information
on the potential Alexei Rybkin
Some Ambarzumyan-type theorems for Dirac operators
Chuan-Fu Yang and Xiao-Ping Yang
SVD-tail: a new linear-sampling reconstruction method for inverse
scattering problems
M'Barek Fares, Serge Gratton and Philippe L Toint
CONFERENCE ANNOUNCEMENT
International Conference on Inverse Problems
******************
Inverse Problems October 2009 Volume 25, Issue 10
Table of Contents
Moment inversion problem for piecewise D-finite functions
Dmitry Batenkov
Direct and inverse problems related to MEMS
Daniele Cassani, Barbara Kaltenbacher and Alfredo Lorenzi
A unified approach to Darboux transformations
Tuncay Aktosun and Cornelis van der Mee
Iterative total variation schemes for nonlinear inverse problems
Markus Bachmayr and Martin Burger
Extracting the support function of a cavity in an isotropic elastic
body from a single set of boundary data
Masaru Ikehata and Hiromichi Itou
The hard pulse approximation for the AKNS (2 x 2)-system
Charles L Epstein and Jeremy Magland
Stability and global-in-time results for an inverse problem related to
a nuclear reactor model Fabrizio Colombo
Inverse problems for Sturm--Liouville operators on bush-type graphs
V Yurko
A discrete spherical x-ray transform of orientation distribution
functions using bounding cubes
I G Kazantsev, S Schmidt and H F Poulsen
The inverse scattering transform and squared eigenfunctions for a
degenerate 3 x 3 operator D J Kaup and Jianke Yang
On revealing graph cycles via boundary measurements
M I Belishev and N Wada
Improvements on a predictor--corrector strategy for parameter
estimation with several data types
Tao Feng and Trond Mannseth
Individual articles are free for 30 days following their publication
on the web. This issue is available at:
http://www.iop.org/EJ/toc/0266-5611/25/10
Submitted by: Emma Avery, Senior Production Editor, Inverse Problems,
IOP Publishing.
-----------------------------
Subject: Journal of Inverse and Ill-posed Problems, issues 5-6 (2009)
From: "Simon.Albroscheit@degruyter.com"
Date: Wed, 19 Aug 2009
Journal of Inverse & Ill-posed Problems 2009 Volume 17, Issue 5
Table of Contents
Numerical methods for solving inverse problems for time fractional
diffusion equation with variable coefficient
A. N. Bondarenko, D. S. Ivaschenko
On inverse scattering at high energies for the multidimensional
nonrelativistic Newton equation in electromagnetic field
A. Jollivet
Representation formulae for solutions to direct and inverse degenerate
in time first-order Cauchy problems in Banach spaces
A. Lorenzi
Recover implied volatility of underlying asset from European option
price Lu Lu, Lei Yi
Modeling and optimization of a propeller by means of inverse problems
H. Telib, A. Iollo, L. Zannetti
******************
Journal of Inverse & Ill-posed Problems 2009 Volume 17, Issue 6
Table of Contents
Identification of a source for parabolic and hyperbolic equations with
a parameter N. L. Abasheeva
A sensitivity matrix based methodology for inverse problem formulation
A. Cintrón-Arias, H. T. Banks, A. Capaldi, A. L. Lloyd
Well-posedness of an inverse problem of Navier-Stokes equations with
the final overdetermination J. Fan, G. Nakamura
Modified Landweber iterations in a multilevel algorithm applied to
inverse problems in piezoelectricity T. Lahmer
A variational approach to the Cauchy problem for nonlinear elliptic
differential equations I. Ly, N. Tarkhanov
A new robust algorithm for solution of pressure/rate deconvolution problem
E. A. Pimonov, M. Onur, F. J. Kuchuk
International Conference and Young Scientists School Theory and
Computational Methods for Inverse and Ill-posed Problems
5th International Conference Inverse Problems: Modeling and Simulation
All issues are hosted on www.reference-global.com -- de Gruyter's
integrated platform for eBooks, eJournals, databases.
Submitted by: Robert Plato
Publishing Editor, Mathematics/Physics, Walter de Gruyter
Genthiner Str. 13, 10785 Berlin, Germany
Tel: +49 30 26005-101 E-mail: robert.plato@degruyter.com
Fax: +49 30 26005-352 www.degruyter.com
-----------------------------
Subject: Table of Contents, Nonlinear Analysis: Modelling and Control
From: Romas Baronas
Date: Sun, 13 Sep 2009
Nonlinear Analysis: Modelling & Control 2009 Vol. 14, No. 3
Table of Contents
Pseudo Almost Periodic Sequence Solutions of Discrete Time Cellular
Neural Networks S. Abbas
Effects of Viscous and Joules Dissipation on MHD Flow, Heat and Mass
Transfer past a Stretching Porous Surface Embedded in a Porous Medium
S.P. Anjali Devi, B. Ganga
Estimation of a Distribution Function under Sampling on Two Occasions
V. Chadysas
Local Hopf Bifurcation and Stability of Limit Cycle in a Delayed
Kaldor-Kalecki Model A. Kaddar, H. Talibi Alaoui
MHD Flow past a Semi-Infinite Vertical Plate with Mass Transfer
G. Palani, U. Srikanth
Saddlestrapping Sarjinder Singh
On the Sojourn Time of the Brownian Process in a Multidimensional
Spherek S. Steisunas
Unsteady Oscillatory Flow and Heat Transfer in a Horizontal Composite
Porous Medium Channel
J.C. Umavathi, A.J. Chamkha, A. Mateen, A. Al-Mudhaf
For a paper submission, please refer to http://www.lana.lt/journal
Dr. Romas Baronas, Journal Secretary,
Nonlinear Analysis: Modelling and Control
A free on-line edition is available at:
http://www.lana.lt/journal/issues.php
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