- Today's Editor:
- Tamara G. Kolda
- Sandia National Labs
- tgkolda@sandia.gov

- George Forsythe photo
- Report on condition number definitions
- Response to " What is the definition of "condition number"?"
- Data-assimilation toolbox OpenDA 1.0 available
- 2009 Best Paper Award--Journal of Complexity
- New book, ODE, Mechanics, and Computation
- New book, E-Book on Algorithmic Science and Engineering
- Image Processing with CUDA Course, San Francisco area, Sep 2010
- Workshop on High-Performance Computing at ETH Zurich, Sept 2010
- Woudschoten Conf on Scientific Computing, the Netherlands, Oct 2010
- Workshop on Model Reduction, TU Berlin, Dec 2010
- Workshop multiscale simulation for materials, Belgium, Jan 2011
- SIAM Workshop, Combinatorial Scientific Computing, Germany, May 2011
- 1 PostDoc and 2 PhD positions at Univ Bergen, Norway
- 3 PhD positions from University of Liverpool, UK
- Contents, Journal of Scientific Computing 44(2) Aug 2010
- Contents, Inverse Problems, volume 26, issue 7, July 2010
- Subscribe, unsubscribe, change address, or for na-digest archives:
- http://www.netlib.org/na-digest-html/faq.html

-------------------------------------------------------

From: Joseph Grcar <jfgrcar@comcast.net>

Date: Sun, 4 Jul 2010 15:50:33 -0700

**Subject: George Forsythe photo**

Dear NA Digest,

I am looking for the source of a photograph of George Forsythe wearing

a business suit and leaning against a tape drive in an old fashioned

computer center with an asbestos tile ceiling. Does anyone know the

photo?

Joseph Grcar

jfgrcar@comcast.net

-------------------------------------------------------

From: Joseph Grcar <jfgrcar@comcast.net>

Date: Sat, 3 Jul 2010 16:36:16 -0700

**Subject: Report on condition number definitions**

Dear NA Digest,

I want to thank everyone who answered my question about condition

numbers.

Some people sent definitions, while others cited the following 12

sources: Trefethen and Bau (5 citations), Wikipedia (3), Dahlquist

and Björck (2), Demmel (2), Deuflhard and Hohmann (2), Atkinson (1),

Chaitin-Chatelin and Fraysse (1), Opfer (1), Quarteroni, Sacco and

Saleri (1), Stoer and Bullisrsch (1), and papers by Rice (1) and

Wozniakowski (1). I personally looked at 8 sources: T&B, W, D&B, D&H,

CC&F, QS&S, S&B, and R.

I was surprised to find two definitions. Both deal with a vector-

vector function f at a point x. The condition number is:

1) the lim sup at x of a ratio: the norm of changes to the function

divided by the norm of changes to the argument.

2) the minimum of coefficients that appear in perturbation bounds of

the form: norm of change to the function at x bounded by a coefficient

times norm of change to x plus an error term of size Landau's little o.

I will not mention the sometimes complicated terminology in the

literature other than to say I have ignored scalings that might be

used to make the condition numbers "normwise relative." It seems to

me that the norms can include the scalings so the statements above

encompass the relative case.

The first definition is usually attributed to Rice (1966) who has an

expression that is equivalent to the definition of the lim sup. The

second definition might as well be attributed to Wilkinson (1973) who

said he would refer to the coefficient in an error bound as a

condition number; it is of course natural to ask for the smallest

coefficient.

I could imagine an epsilon-and-delta proof that these two definitions

are the same except the second definition makes me uneasy by stating

"min" rather than "inf". The textbooks I examined that use either

definition further say the condition number of a continuously

differentiable function is the induced norm of the Jacobian matrix.

These definitions raise the following questions:

a) are 1 and 2 equivalent perhaps with some minor modification?

b) what is the purpose of this level of abstraction? That is, for

what non-differentiable functions are condition numbers need in

scientific or engineering problems?

There are of course other cases to be considered such as componentwise

condition numbers and problems with indeterminate solutions.

Joseph Grcar

jfgrcar@comcast.net

-------------------------------------------------------

From: Garry Tee <tee@math.auckland.ac.nz>

Date: Mon, 28 Jun 2010 18:14:13 +1200

**Subject: Response to " What is the definition of "condition number"?"**

Joseph Grcar asked "What is the general definition of the

"condition number" of a numerical analysis problem?" (NA Digest Vol.

10: Issue 26).

One of the best discussions of condition numbers for

numerical analysis problems is that given by J. H. Wilkinson, in

"Rounding Errors in Algebraic Processes", National Physical

Laboratory Notes on Applied Science No.32, HMSO, London, 1963, on

pages 29, 33, 91-94 and 135-136. He explained that "We have avoided

framing a precise definition of condition numbers so that we may use

the term freely" (p.29). Also, Wilkinson discussed the condition of a

polynomial with respect to zeros (p.38), and the condition of a

matrix with respect to computing eigenvalues (pp.136-138). He

remarked that "The term condition number seems first to have been

used by Turing in his paper on rounding errors in matrix processes

[in 1948], though the term 'ill-condition' had been in common use

among numerical analysts for some considerable time before this" (p.

33). Wilkinson gave many detailed examples in his major treatise on

"The Algebraic Eigenvalue Problem", Oxford University Press, 1965.

A noteworthy early treatment of conditioning was given by Isaac

Newton's young friend Roger Cotes (1682-1716) in his short tract

"Aestimatio Errorum in Mixta Mathesi", published in 1722. Cotes gave

complete perturbation analyses (first-order) for plane triangles and

for spherical triangles, and he explained how to conduct the

measurement of astronomical angles in such a way as to minimize the

uncertainty in the computed result. [Ronald Gowing, "Roger Cotes -

Natural Philosopher", Cambridge University Press, 1983, pp.91-109.

Reviewed in Math. Rev. 87b:01033.]

Garry J. Tee,

Department of Mathematics, University of

Auckland, tee@math.auckland.ac.nz

-------------------------------------------------------

From: Edwin Vollebregt <edwin.vollebregt@vortech.nl>

Date: Mon, 28 Jun 2010 14:00:43 +0200

**Subject: Data-assimilation toolbox OpenDA 1.0 available**

On May 10, the first official version of the free data-assimilation toolbox

OpenDA has been announced. A complete version for both Windows and Linux,

including the source code, is now available through the web site

www.openda.org

and will soon be available on sourceforge.net.

OpenDA is a collection of building blocks and tools that allow rapid

implementation of data-assimilation for arbitrary (large scale) numerical

models. It includes various approximate Kalman filters and parameter

estimation

methods. Software components are available to couple the methods to your

numerical model. Language bindings exist for Fortran, C/C++ and Java.

Tools are available for using models with data-assimilation. These

include a

workbench that allows you to select any of the available data-assimilation

methods and configure its parameters.

The OpenDA software supports high performance computing. The

compute-intensive

data-assimilation methods have been parallellized using MPI. The design of

OpenDA allows it to handle models that have themselves been parallelized

either

with MPI or with OpenMP.

OpenDA has been developed in a joint effort by Delft University of

Technology,

the water management research institute Deltares and the scientific

software

engineering company VORtech. It has been applied in various practical

applications in fields like water management and atmospheric chemistry. A

coupling has been made to the open source wave model SWAN, the flood early

warning system FEWS, the open source atmospheric chemistry model

Chimere, as

well as several closed source applications.

More information can be found at www.openda.org or directly through the

e-mail

address info@openda.org. The OpenDA association is interested in

projects that

will help to spread the use of OpenDA and to develop it further. Please

communicate any initiatives to info@openda.org.

Mark Roest, Arnold Heemink, Martin Verlaan and other contributors.

-------------------------------------------------------

From: Joseph Traub <traub@cs.columbia.edu>

Date: Mon, 28 Jun 2010 09:30:19 -0400 (EDT)

**Subject: 2009 Best Paper Award--Journal of Complexity**

Frank Aurzada, Steffen Dereich, Michael Scheutzow, and Christian Vormoor

Win the 2009 Best Paper Award

The Award Committee -- Stephan Dahlke, Universitaet Marburg, Germany and

Josef

Dick, University of New South Wales, Australia - determined that the

following

paper exhibited exceptional merit and therefore awarded the prize to:

Frank Aurzada, Steffen Dereich, Michael Scheutzow, and Christian Vormoor

for

their paper "High resolution quantization and entropy coding of jump

processes", which appeared in April, 2009. Vol. 25, pp 163-188.

The $3000 prize will be divided between the authors. Each author will also

receive a plaque. The award will be presented at a suitable location.

-------------------------------------------------------

From: Bob Palais <palais@math.utah.edu>

Date: Mon, 5 Jul 2010 16:27:07 -0400

**Subject: New book, ODE, Mechanics, and Computation**

Differential Equations, Mechanics, and Computation, by Richard S. Palais

and Robert A. Palais. published by the AMS, Student Mathematical Library

2009; 313 pp; softcover Volume: 51 ISBN-10: 0-8218-2138-5 ISBN-13:

978-0-8218-2138-1 List Price: US$51 Member Price: US$40.80

More information about the book is available in its Web Companion:

http://vmm.math.uci.edu/ODEandCM/

that includes excerpts of each section.

In modern applied mathematics, theory and rigorously analyzed

computation go

hand-in-hand. This calls for a text that discusses both in detail, and

we have

undertaken to provide one. The discussion of numerical methods strives to be

visual and comparative, based on carefully chosen examples of prototypical

methods and model problems.

A more detailed description of the approach to numerical methods, with a

link

to the excerpt of the first 38 pages of the chapter on design and

analysis of

computational methods, as well as several sample figures may be found at:

http://www.math.utah.edu/~palais/ODEMC/ODEMC-Numerical.html

This book also provides a conceptual introduction to the theory of ordinary

differential equations, concentrating on the initial value problem for

equations of evolution and with applications to the calculus of

variations and

classical mechanics, along with a discussion of chaos theory and ecological

models. While the book would be suitable as a textbook for an

undergraduate or

elementary graduate course in ordinary differential equations, the authors

have designed the text also to be useful for motivated students wishing to

learn the material on their own or desiring to supplement an ODE textbook

being used in a course they are taking with a text offering a more

conceptual

approach to the subject.

Readers of NA Digest may also be interested in a page linked from the web

companion that discusses an inconsistency in the literature in the

definition

of the region of absolute stability of a numerical method . Examples from

eight well-known books, half of which give definitions requiring decay of

solutions, and half of which require only boundedness of solutions may be

found here:

http://vmm.math.uci.edu/ODEandCM/StabiltyRegionDefinitions/

StabilityRegionDefinitions2.html

For more information, please visit

http://www.ams.org/bookstore?fn=20&arg1=diffequ&ikey=STML-51

-------------------------------------------------------

From: Larry Nazareth <nazareth@amath.washington.edu>

Date: Wed, 30 Jun 2010 11:59:06 -0700 (PDT)

**Subject: New book, E-Book on Algorithmic Science and Engineering**

I've recently published the following research monograph in

the form of an e-book:

J.L. Nazareth (2010), Algorithmic Science and Engineering within

Scientific Computing: Foundations and Organization, 128 pgs.,

http://www.math.wsu.edu/faculty/nazareth/asebook.pdf

which is available free of charge from the above web address. An

abbreviated table of contents is as follows:

Preface............................................... v

Introduction..........................................xi

Part I: Foundational Models and Paradigms

Chapter 1: Symbol-Based Computing......................1

Chapter 2: Magnitude-Based Computing..................21

Chapter 3: Complex Behavior of Simple Programs........41

Chapter 4: Essentialism versus Population-Thinking....51

Part II: Context and Organization

Chapter 5: A Visual Icon for Sci-En-Math..............69

Chapter 6: The Emerging AS&E Discipline...............75

Chapter 7: Illustrations of AS&E......................87

Bibliography.........................................105

Comments/corrections/feedback on this material sent by e-mail

to nazareth@amath.washington.edu or larry_nazareth@q.com would

be welcome.

-------------------------------------------------------

From: "Chen Sagiv" <chen@sagivtech.com>

Date: Mon, 28 Jun 2010 08:09:06 +0200

**Subject: Image Processing with CUDA Course, San Francisco area, Sep 2010**

SagivTech plans to offer a 3-days course that deals with Image Processing

with CUDA in the USA this September.

This is an advanced course that is intended for experienced CUDA developers

who look for optimization methods for image processing applications

implemented on Nvidia$B!l(Bs GPUs.

The course will take place in the San Francisco area, between September 27

and September 29, just following the GTC. Course hours are 9-17.

The course focuses on the practical issues involved in the implementation of

image processing algorithms on the GPU and provides several hands on

sessions. Among the topics dealt with in the course are: Bottlenecks

assessment, GPU Memory Access Patterns, Asynchronously and stream

processing, Multiple GPUs, Linear and Non-Linear Filtering, Image

Registration, Mathematical Morphology, Gray level Co-Occurrence Matrices and

Optical Flow. For a detailed syllabus see:

http://www.sagivtech.com/36923.html

Registration is now open, and will be closed on August 15th. Number of

participants is limited. The final confirmation on the course will be given

on September 1st.

For registration email: courses@sagivtech.com

-------------------------------------------------------

From: Peter Arbenz <arbenz@inf.ethz.ch>

Date: Mon, 5 Jul 2010 13:38:34 +0200

**Subject: Workshop on High-Performance Computing at ETH Zurich, Sept 2010**

39th SPEEDUP Workshop on High Performance Computing,

September 6/7, 2010, at ETH Zurich

The intention of this workshop is to present and discuss the

state-of-the-art in high-performance and parallel scientific computing.

Presentations will focus on algorithms, applications, and software

issues related to high-performance parallel computing. The focus of the

workshop on Monday Sept 6 will be on software environments for large

scale simulations and on the issues of fault tolerance in massively

parallel systems.

The scientific program of September 6 consists of seven 45-minute talks

and a poster session. Invited Speakers are Omar Gattas (University of

Texas, Austin), Jedediah Brown (ETH Zurich), Michael Heroux (Sandia

National Laboratories, Albuquerque), Rolf Krause (USI Lugano), Romain

Teyssier (University of Zurich), Christian Engelmann (Oak Ridge National

Laboratory), Georg Hager (University of Erlangen-Nuernberg).

On September 7 we organize a tutorial on hybrid MPI/OpenMP computing.

It will be taught by Timothy Stitt and Neil Stringfellow (both from the

Swiss

National Supercomputing Centre, CSCS).

Details can be found at http://www.speedup.ch/.

Organizing Committee: Andreas Adelmann (PSI Villigen), Peter Arbenz

(ETH Zurich), Olaf Schenk (University of Basel), Vittoria Rezzonico

(EPF Lausanne), Ales Janka (University of Fribourg).

-------------------------------------------------------

From: Margreet Nool <Margreet.Nool@cwi.nl>

Date: Tue, 29 Jun 2010 16:37:31 +0200

**Subject: Woudschoten Conf on Scientific Computing, the Netherlands, Oct **

2010

On 6-8 October 2010 the thirty-fifth Woudschoten Conference will be held

at the Woudschoten Conference Centre, Zeist, The Netherlands.

The web form for electronic registration has been made available.

Themes of the conference are:

- Parallel numerical linear algebra

Invited talks by:

o Patrick Amestoy, Université de Toulouse, Toulouse, France

o Peter Arbenz, ETH Zürich, Switzerland

o Alex Pothen, Purdue University, West Lafayette, USA

- Immersed boundary methods and Cartesian grids

Invited talks by:

o Gianluca Iaccarino, Stanford University, California, USA

o Petros Koumoutsakos, ETH Zürich, Switzerland

o Rajat Mittal, Johns Hopkins University, Baltimore, USA

Organising committee 2010: Prof. Arthur Veldman (chair), Prof. Rob

Bisseling, Prof. Kees Vuik, Prof. Barry Koren, Drs. Margreet Nool

(secretary)

Information:

http://wsc.project.cwi.nl/woudschoten/2010/conferentieE.php (English)

http://wsc.project.cwi.nl/woudschoten/2010/conferentieN.php (Dutch)

Registration:

http://wsc.project.cwi.nl/woudschoten/2010/registratieE.php (English)

http://wsc.project.cwi.nl/woudschoten/2010/registratieN.php (Dutch)

All participants are invited to present a poster about their current

research.

See the website and registration form for details.

-------------------------------------------------------

From: Tatjana Stykel <stykel@math.tu-berlin.de>

Date: Sat, 3 Jul 2010 18:33:25 -0400

**Subject: Workshop on Model Reduction, TU Berlin, Dec 2010**

Workshop on Model Reduction for Complex Dynamical Systems

December 2-3, 2010

TU Berlin, Germany

Topic:

This workshop of the BMBF research network SyreNe (http://www.syrene.org)

aims to bring together researchers and users of model order reduction

techniques with special emphasis on applications in micro- and

nanoelectronics. Contributions from other areas such as computational

electromagnetics, mechanical systems, computational fluid dynamics and

related disciplines are welcome.

Invited speakers:

* Michel S. Nakhla (Carleton University, Ottawa, Canada)

* Joel R. Phillips (Cadence Research Laboratories, Berkeley, USA)

* Timo Reis (TU Hamburg-Harburg, Germany)

Important dates:

Abstract submission: July 15, 2010 (extended)

Please submit an abstract of your talk (up to 1 page) using

the LaTeX template.

Acceptance notification: September 1, 2010

Registration: November 1, 2010

For further information, please visit

http://www3.math.tu-berlin.de/modred2010

-------------------------------------------------------

From: Giovanni Samaey <Giovanni.Samaey@cs.kuleuven.be>

Date: Mon, 28 Jun 2010 15:47:36 -0400

**Subject: Workshop multiscale simulation for materials, Belgium, Jan 2011**

A workshop on 'Multiscale simulation of heterogeneous materials and

coupling of thermodynamic models' will be held in Leuven, Belgium, on

January 12-14, 2011.

Website: http://www.cs.kuleuven.be/conference/multiscale11/

Since the macroscopic properties of a large class of materials depend

on the heterogeneities on micro- and mesoscopic scales, appropriate

mathematical models are needed to adequately describe the evolution of

the spatial structure and composition variations at each of these

scales. This has lead to a number of modeling approaches that describe

a material’s behavior on different scales ranging from the (sub)atomic

to the continuum level.

In this workshop, the focus will be on two closely connected themes:

computational multiscale methodology and the coupling of thermodynamic

models.

We refer to the website for a list of invited speakers. Contributed

presentations of 20 minutes are welcomed on topics related to the

scope of the workshop. We also encourage each participant to bring a

poster on his/her work, which will be displayed for the whole duration

of the workshop. Please submit your contribution before August 31,

2010 via the website.

This workshop is sponsored by the Scientific Research Networks

'Advanced numerical methods for mathematical models', 'Surface

modification of materials', 'Computational modeling of materials', and

'Structural and chemical characterization of materials at the micro-

and nanoscale', the European COST MP0602 action, as well as by Res

Metallica (consisting of OCAS, Bekaert and Umicore).

-------------------------------------------------------

From: "Pinar, Ali" <apinar@sandia.gov>

Date: Fri, 2 Jul 2010 15:36:16 -0600

**Subject: SIAM Workshop, Combinatorial Scientific Computing, Germany, May **

2011

Fifth SIAM Workshop on Combinatorial Scientific Computing

May 19-21, 2011, Darmstadt, Germany

http://www.siam.org/meetings/csc11/

With the continuing advances in high-performance computing

(HPC) the role of computational science and engineering (CSE)

has gained significant importance over the last decades.

At the same time scientific simulation faces a number of

challenges. Many of those are combinatorial in nature and

unified by a common set of abstractions, data structures, and

algorithms based on combinatorics, graphs, and hypergraphs.

CSC11 provides a forum for researchers interested in the

interaction of combinatorial mathematics and algorithms

with CSE. The workshop will follow and in part overlap with

the 2011 SIAM Conferenceon Optimization (OP11,

http://www.siam.org/meetings/op11/).

We invite 2-page extended abstracts for 25-minute oral

as well as for poster presentations to be submitted via

http://www.easychair.org/conferences/?conf=csc11.

Confirmed invited presentations:

Thomas F. Coleman (University of Waterloo)

(joint plenary presentation with OP11)

Burkhard Monien (Paderborn University)

Trond Steihaug (Bergen University)

-------------------------------------------------------

From: Petter Bjorstad <Petter.Bjorstad@ii.uib.no>

Date: Sat, 3 Jul 2010 07:26:18 +0200

**Subject: 1 PostDoc and 2 PhD positions at Univ Bergen, Norway**

A postdoctoral position (2-4 years) and 2 PhD positions

(4 years) are available for immediate considerations.

The Postdoc gross salary is approx. 450.000 NOK/year

The PhD gross salary is approx. 350.000 NOK/year

Postdoc candidates should apply via:

http://www.jobbnorge.no/job.aspx?jobid=68220

PhD candidtaes should apply via:

http://www.bccs.uni.no/positions

The research shall be carried out at the

University of Bergen, Norway ( http://www.uib.no/en )

Department of Informatics

For further details contact petter@ii.uib.no or Talal.Rahman@hib.no

-------------------------------------------------------

From: Ke Chen <k.chen@liv.ac.uk>

Date: Mon, 28 Jun 2010 04:23:49 -0400

**Subject: 3 PhD positions from University of Liverpool, UK**

The Department of Mathematical Sciences, The University of Liverpool, UK,

has

3 PhD positions. Please forward to any suitable

candidates.

(1) Graduate TA Posts 1 and 2:

These are funded by the University of Liverpool in partnership with

the

Xi'an Jiaotong-Liverpool

University (XJTLU). Candidates can choose any available projects within

Mathematical Sciences.

Each post is for 4 years, starting from 1 Sep 2010, at the research

council level of £13,590 pa.

There are no residence requirements. The GTAs’ deadline is: 6 July 2010.

See

http://www.liv.ac.uk/maths/Prosp_PG/2010JulyTeachingAssistants.pdf

(2) Post 3: EPSRC INDUSTRIAL CASE studentship

This is funded by the EPSRC following a successful competition for the

general pool, for the project

“Blind Deblurring Techniques for Retinal Imaging”,

in collaboration with the St Pauls Eye Unit of the Royal Liverpool and

Broadgreen University Hospital,

a leading eye hospital that treats around 90000 patients per year from

all over UK and further afield.

Essentially involving variational imaging modelling and advanced

numerical methods, the project will be

supervised by Prof Ke Chen (Math Sciences) and Prof Simon Harding (St

Paul’s unit).

The usual UK EPSRC rules and conditions apply.

See http://www.liv.ac.uk/maths/Prosp_PG/2010JulyCMIT_CaseStudent.pdf

-------------------------------------------------------

From: Chi-Wang Shu <shu@dam.brown.edu>

Date: Mon, 5 Jul 2010 02:34:39 -0400 (EDT)

**Subject: Contents, Journal of Scientific Computing 44(2) Aug 2010**

Journal of Scientific Computing

http://www.springeronline.com/journal/10915

Volume 44, Number 2, August 2010

Boussinesq Systems of Bona-Smith Type on Plane

Domains: Theory and Numerical Analysis

V.A. Dougalis, D.E. Mitsotakis and J.-C. Saut,

pp.109-135.

On the Quadrature and Weak Form Choices in

Collocation Type Discontinuous Galerkin Spectral

Element Methods

David A. Kopriva and Gregor Gassner, pp.136-155.

A Unified Analysis of Several Mixed Methods for

Elasticity with Weak Stress Symmetry

J. Guzman, pp.156-169.

Modeling the Early Ionization of Dielectrics by

Ultrashort Laser Pulses

Antoine Bourgeade, Candice Mezel and Olivier

Saut, pp.170-190.

Two-step Runge-Kutta Methods with Quadratic

Stability Functions

D. Conte, R. D'Ambrosio and Z. Jackiewicz,

pp.191-218.

-------------------------------------------------------

From: Emma Avery <Emma.Avery@iop.org>

Date: Fri, 2 Jul 2010 16:48:51 +0100

**Subject: Contents, Inverse Problems, volume 26, issue 7, July 2010**

INVERSE PROBLEMS

Volume 26, Issue 7, July 2010

Article numbers: 070201--071016

Individual articles are free for 30 days following their publication on the

web. This issue is available at: http://iopscience.iop.org/0266-5611/26/7

SPECIAL ISSUE ON ELECTROMAGNETIC INVERSE PROBLEMS: EMERGING METHODS AND

NOVEL APPLICATIONS

EDITORIAL

070201

Introduction to the special issue on electromagnetic inverse problems:

emerging methods and novel applications

O Dorn and D Lesselier (Guest Editors)

PAPERS

074001

Resolution analysis for imaging with noise

Josselin Garnier and George Papanicolaou

074002

Conformal mapping and impedance tomography

Houssem Haddar and Rainer Kress

074003

Electromagnetic passive localization and tracking of moving targets in a

WSN-infrastructured environment

F Viani, P Rocca, M Benedetti, G Oliveri and A Massa

074004

The inverse electromagnetic scattering problem for anisotropic media

Fioralba Cakoni, David Colton, Peter Monk and Jiguang Sun

074005

Increasing stability of the continuation for the Maxwell system

Deepak Aralumallige Subbarayappa and Victor Isakov

074006

Adjoint-based sampling methods for electromagnetic scattering

H Egger, M Hanke, C Schneider, J Sch\"oberl and S Zaglmayr

074007

Subspace-based optimization method for inverse scattering problems with an

inhomogeneous background medium

Xudong Chen

074008

On the imaging of thin dielectric inclusions buried within a half-space

Won-Kwang Park

074009

Contrast-enhanced microwave imaging of breast tumors: a computational study

using 3D realistic numerical phantoms

J D Shea, P Kosmas, B D Van Veen and S C Hagness

074010

Reduced-order estimation of nonstationary flows with electrical impedance

tomography

A Lipponen, A Sepp\"anen and J P Kaipio

074011

Acceleration techniques for regularized Newton methods applied to

electromagnetic inverse medium scattering problems

Thorsten Hohage and Stefan Langer

074012

Kriging-based generation of optimal databases as forward and inverse

surrogate models

S Bilicz, M Lambert and Sz Gyim\'othy

074013

Application of a two-and-a-half dimensional model-based algorithm to

crosswell electromagnetic data inversion

Maokun Li, Aria Abubakar and Tarek M Habashy

074014

Numerical solution of an inverse medium scattering problem with a

stochastic source

Gang Bao, Shui-Nee Chow, Peijun Li and Haomin Zhou

074015

A study on orthogonality sampling

Roland Potthast

074016

Recent developments of a monotonicity imaging method for magnetic induction

tomography in the small skin-depth regime

A Tamburrino, S Ventre and G Rubinacci

------------------------------

End of NA Digest

**************************

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