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

- SPOT - A linear-operator toolbox for Matlab
- Hamiltonian BVMs
- New monograph, Fuzzy Approximation Theory
- Scientific Computing and Applications (ICSCA'10), China, Jun 2010
- Numerical Analysis Summer School, University of Durham, Jul 2010
- 2011 ILAS Linear Algebra Conference, Braunschweig, Germany, Aug 2011
- Chemnitz FEM Symposium, Germany, Sep 2010
- Chair at Durham University
- Two Positions in Computational Mathbiology at Dundee University
- Predoctoral Position in Optimization at Argonne
- Contents, Nonlinearity, volume 23, issue 3, March 2010
- Subscribe, unsubscribe, change address, or for na-digest archives:
- http://www.netlib.org/na-digest-html/faq.html

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

From: Michael Friedlander <mpf@cs.ubc.ca>

Date: Fri, 19 Feb 2010 16:25:55 -0500

**Subject: SPOT - A linear-operator toolbox for Matlab**

We are pleased to announce the release of

SPOT -- A linear-operator toolbox for Matlab, v1.0p

http://www.cs.ubc.ca/labs/scl/spot

The SPOT Toolbox brings the expressiveness of Matlab's built-in matrix

notation to problems for which explicit matrices are not

practical. SPOT operators look and feel like regular Matlab

matrices, but are implicitly defined. SPOT includes a collection of

fast operators that can be stitched together using familiar Matlab

commands to form more complex operators.

The following example builds up a 1000-by-1000 circulant operator

using the discrete Fourier transform:

>> >> n = 1000; x = (1:n)'; % the first column defines this operator

>> >> F = opDFT(n); % instantiate a DFT operator

>> >> s = sqrt(n)*F*x; % eigenvalues of the circulant

operator C

>> >> C = real( F'*opDiag(s)*F ); % the circulant operator C

>> >> w = C*x; % apply C to a vector

>> >> y = C'*w; % apply the adjoint of C to a vector

>> >> z = C(end:-1:1,:)*y; % reverse the rows of C and apply to

a vector

>> >> double( C(1:5,1) )' % extract a few elements of the

first column

ans =

1 2 3 4 5

In this example, no explicit matrices are formed. Compare the memory

footprints of the explicit matrix against the SPOT operator:

>> >> A = gallery('circul',x)';

>> >> whos A C

Name Size Bytes Class Attributes

A 1000x1000 8000000 double

C 1000x1000 70730 opReal

SPOT is available under the GNU Public License. We are glad to hear

from users -- please send your comments and suggestions!

Michael and Ewout

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

From: Luigi Brugnano <luigi.brugnano@unifi.it>

Date: Tue, 16 Feb 2010 14:36:21 +0100

**Subject: Hamiltonian BVMs**

Dear All,

we have collected the basic facts about Hamiltonian BVMs (HBVMs),

a new class of energy preserving methods for polynomial Hamiltonian

systems, at the "HBVMs Homepage":

http://web.math.unifi.it/users/brugnano/HBVM/index.html

together with a number of examples, references, and a Matlab code.

Comments and suggestions are welcome.

Luigi Brugnano, Felice Iavernaro, Donato Trigiante.

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

From: George Anastassiou <ganastss@gmail.com>

Date: Sat, 20 Feb 2010 20:21:55 -0500

**Subject: New monograph, Fuzzy Approximation Theory**

Fuzzy Mathematics: Approximation Theory

George A. Anastassiou

This monograph belongs to the broader area of Fuzzy Mathematics and it

is the

first one in Fuzzy Approximation Theory. Chapters are self-contained

with lots

of applications and several advanced courses can be taught.The topics

covered

are very diverse. An extensive background of Fuzziness and Fuzzy Real

Analysis

is given. The author covers Fuzzy Differentiation and Integration

Theory. It

follows about Fuzzy Ostrowski inequalities. Then are presented

results on

classical algebraic and trigonometric polynomial Fuzzy Approximation.

The author

develops a complete theory of convergence with rates of Fuzzy Positive

linear

operators to Fuzzy unit operator, the so called Fuzzy Korovkin Theory.The

related Fuzzy Global Smoothness is included. Then follows the study of

Fuzzy

Wavelet type operators and their convergence with rates to Fuzzy unit

operator.

Similarly are discussed the Fuzzy Neural Network Operators. It follows

about

Fuzzy Random Korovkin approximation theory and Fuzzy Random Neural Network

approximations.The author continues with Fuzzy Korovkin approximations

in the

sense of Summability. At last are estimated in the fuzzy sense

differences of

Fuzzy Wavelet type operators.

The monograph's approach is quantitative and the main results are

given via

Fuzzy inequalities, involving Fuzzy moduli of continuity, that is Fuzzy

Jackson

type inequalities.

The exposed theory is destined and expected to find applications to

all

aspects of Fuzziness from theoretical to practical in almost all sciences,

technology, finance and industry. Also it has its interest within Pure

Mathematics. So this monograph is suitable for researchers, graduate

students

and seminars of theoretical and applied mathematics, computer science,

statistics and engineering.

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

From: Chongjun Li <chongjun@dlut.edu.cn>

Date: Fri, 19 Feb 2010 22:12:46 -0500

**Subject: Scientific Computing and Applications (ICSCA'10), China, Jun 2010**

7th Int Conf on Scientific Computing and Applications (ICSCA¡¯10), June 2010

Seventh International Conference on Scientific Computing and Applications

(ICSCA¡¯10) will be held in Dalian University of Technology, Dalian, China

during 13-16 June 2010.

The aim of ICSCA'10 is to bring together mathematicians, scientists and

engineers working in the field of scientific computing and its applications

to solve scientific and industrially oriented problems and to provide a

forum for the participants to meet and exchange ideas of common interest in

an informal atmosphere. Papers from all branches of applied and

computational mathematics topics are welcome with accepted papers

recommended for special issues in JCAM and JICS

(Paper submission deadline extended to 15 Mar 2010).

More information is available at

http://www.icsca2010.org/

General Co-Chairs:

Ren-Hong Wang (Dalian, China) and Yau Shu Wong (Alberta, Canada)

Scientific Committee:

Zhong-Ci Shi, Qun Lin, Chi-Wang Shu, Roderick S. C. Wong and Luc Wuytack

Local Organizing Committee:

Wei Wu, Bo Yu, Zhixun Su, Zhongxuan Luo and Xiuping Liu

Secretariat:

Chong-Jun Li <chongjun@dlut.edu.cn> Phone: +86(0411)84708351-8310

and

Chun-Gang Zhu, <cgzhu@dlut.edu.cn> Phone: +86(0411)84708351-8315

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

From: Max Jensen <m.p.j.jensen@durham.ac.uk>

Date: Fri, 19 Feb 2010 13:44:00 -0500

**Subject: Numerical Analysis Summer School, University of Durham, Jul 2010**

The 12th LMS/EPSRC Summer School in Computational Mathematics and Scientific

Computing will take place in the University of Durham, United Kingdom on the

25th-31st July 2010

The speakers and topics will be

Daniele Boffi: Finite Element Approximation of Eigenvalue Problems

Susanne Brenner: Finite Element Methods for Elliptic Boundary Value Problems

Peter Monk: Numerical Methods for the Time Dependent Maxwell System

Paolo Zunino: Finite Element Solution of Problems from Mathematical Biology

The purpose of the Summer Schools has always been the delivery of high

quality

instructional courses at postgraduate level. The intended audience is a wide

one, and will include research students, academics and people from industry.

The lecturers will be encouraged to enable a person with an elementary

knowledge of a subject to attain reasonable competence in it, or with a good

initial knowledge to identify and begin work on unsolved problems.

About thirty five funded places for UK-based post-graduate students will be

supported by LMS-EPSRC. All research students registered at a UK university

will pay a registration fee of £100 (and will not be charged subsistence

costs); UK-based postdocs will be charged a registration fee of £100, plus

half the subsistence costs; all other participants will pay a

registration fee

of £250 plus full subsistence costs.

For further details (including online registration) see the web page

http://maths.dur.ac.uk/nass/

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

From: Heike Fassbender <h.fassbender@tu-braunschweig.de>

Date: Sun, 21 Feb 2010 07:59:24 -0500

**Subject: 2011 ILAS Linear Algebra Conference, Braunschweig, Germany, Aug **

2011

The 2011 ILAS Conference “Pure and Applied Linear Algebra: The New

Generation”

will take place in Braunschweig, Germany at the Technische Universität

Braunschweig from August 22 -- 26, 2011. This conference will have a special

emphasis on young researchers, which will be reflected by predominantly

young

plenary speakers as well as young researchers’ minisymposia. See

www.ilas2011.de for more information.

Scientific Organising Committee:

Ravi Bapat (Indian Statistical Institute, New Delhi, India)

Albrecht Böttcher (TU Chemnitz, Germany)

Angelika Bunse-Gerstner (Universität Bremen, Germany)

Tobias Damm (TU Kaiserslautern, Germany)

Froilan Dopico (Universidad Carlos III de Madrid, Spain)

Shaun Fallat (University of Regina, Saskatchewan, Canada)

Heike Faßbender (TU Braunschweig, Germany, Chair)

Steve Kirkland (Hamilton Institute, Natl Univ of Ireland, Ireland)

Raphael Loewy (Technion - Israel Institute of Technology, Haifa, Israel)

Nil Mackey (Western Michigan University, Kalamazoo, USA)

Bryan Shader (University of Wyoming, Laramie, USA)

Michael Tsatsomeros (Washington State University, Pullman, USA)

Local Organising Committee:

Heike Faßbender (TU Braunschweig, Germany)

Matthias Bollhöfer (TU Braunschweig, Germany)

Peter Benner (TU Chemnitz, Germany)

Young Researchers’ Minisymposia:

Like an ordinary minisymposium, a young researchers' minisymposium will

focus

on a specific, timely research subject. It will last two hours with four to

six talks. Two organisers from two different institutions will apply for a

young researchers' minisymposium. As all other speakers they should hold

a PhD

for no longer than 6 years and not yet hold a tenured professor's position.

>From the applications received, the programme committee will select up

to five

young researchers' minisymposia. More information on the application process

will be available soon on www.ilas2011.de.

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

From: Frank Schmidt <frank.schmidt@mathematik.tu-chemnitz.de>

Date: Mon, 15 Feb 2010 11:34:35 -0500

**Subject: Chemnitz FEM Symposium, Germany, Sep 2010**

We would like to invite you and your colleagues to the

23nd Chemnitz FEM Symposium

September 27 - 29, 2010

Scientific Topics: Finite Elements, including (but not limited to)

adaptive methods, parallel implementations, high order methods.

This year special emphasis is on:

* Adaptive Methods

* Eigenvalue Approximation for Differential Operators

* Singularly Perturbed Problems

Invited Speakers:

* Kunibert Siebert (Universität Duisburg-Essen)

* Klaus Neymeyr (Universität Rostock)

* Martin Stynes (University College Cork)

* Anders Logg (University of Oslo)

Deadlines, Registration and further Information:

http://www.tu-chemnitz.de/mathematik/fem-symposium/

Contact: fem10@tu-chemnitz.de

With best regards,

Arnd Meyer

on behalf of the organising committee

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

From: James Blowey <j.f.blowey@durham.ac.uk>

Date: Mon, 15 Feb 2010 13:16:16 +0000

**Subject: Chair at Durham University**

Durham University, UK

Department of Mathematical Sciences

Chair in Applied Mathematics

Salary: Negotiable within professorial range

Closing date: 19th April 2010

The successful candidate will be world leading and will have an

outstanding research record in an area of Applied Mathematics other

than theoretical particle physics or general relativity. Preference may

be given to candidates with research interests which mesh with existing

ones in the department: continuum mechanics, computational applied

mathematics, partial differential equations, mathematical

biology/medicine, applied dynamical systems. He or she will be expected

to undertake and publish original research of the highest level, to

contribute to the research activities of the Applied Mathematics unit

and of the department as a whole, and to undertake teaching and

administrative duties as assigned by the Head of Department of

Mathematical Sciences.

For the job description and further particulars see

https://jobs.dur.ac.uk/jobdtls.asp?Session_in=&Uid=&vref=3665

For informal enquiries contact Professor Brian Straughan

<brian.straughan@durham.ac.uk>

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

From: Mark Chaplain <chaplain@maths.dundee.ac.uk>

Date: Thu, 18 Feb 2010 05:38:08 -0500

**Subject: Two Positions in Computational Mathbiology at Dundee University**

Lecturer/Senior Lecturer/Reader

The Division of Mathematics, University of Dundee, seeks to appoint

two suitably qualified outstanding candidates to positions in

Computational Mathematical Biology. The Division has a long-standing

history of research excellence in the areas of Mathematical Biology

and Numerical Analysis (particularly in the area of differential

equations) which it seeks to maintain and develop through these

appointments. The successful candidates will take their places in a

dynamic interdisciplinary environment and a growing Computational

Mathematical Biology group, following substantial University

investment in this area which has recently seen the addition of a new

chair and a lecturer in mathematical biology. The candidates will be

involved in the running of the new MSc degree in Computational

Mathematical Biology, commencing September 2010. There is also a

commitment to interact with colleagues in the School of Life Sciences

and develop interdisciplinary collaborative research projects in the

area of computational biology. The successful candidates should

therefore have an international research reputation in Mathematical

Biology, Computational Mathematics or Numerical Analysis of

Differential Equations and show an enthusiasm for inter-disciplinary

research.

Informal approaches concerning this appointment may be made to:

Professor MAJ Chaplain, FRSE,

Division of Mathematics,

University of Dundee,

Dundee DD1 4HN

Tel: 01382 385369

Fax: 01382 385516

email: chaplain@maths.dundee.ac.uk

Full details at:

http://www.jobs.dundee.ac.uk/vacancies/20100325_00002-x.html

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

From: "Jorge More'" <more@mcs.anl.gov>

Date: Tue, 16 Feb 2010 17:19:15 -0500

**Subject: Predoctoral Position in Optimization at Argonne**

Predoctoral Researcher

Derivative-Free Optimization of Complex Systems

The Mathematics and Computer Science (MCS) Division at Argonne

National Laboratory invites outstanding candidates to apply for a

predoctoral position focusing on research in optimization algorithms

and software for complex scientific simulations.

The successful applicant will be working with a multidisciplinary

group on basic research on algorithms and software for applications

that typically run on high-performance architectures such as Argonne's

26-teraflop Fusion cluster or the 557-teraflop IBM Blue Gene/P system.

Applicants must have recently received a B.S. or M.S. in mathematics,

computer science or a related discipline. Candidates should have a

strong background in scientific computing and numerical analysis, and

considerable experience programming with MATLAB and C/C++ or Fortran.

Experience in parallel programming (MPI) is highly desirable.

The appointment will be in the MCS Division (www.mcs.anl.gov), which

has strong programs in computational mathematics, scientific computing

and software tools. Argonne is located in the southwestern Chicago

suburbs, offering the advantages of affordable housing, good schools,

and easy access to the cultural attractions of the city.

Applications must include a curriculum vitae with a description of the

candidate's qualifications for the position, and the names of at least

two references who can attest to the candidate's ability. Send

applications to Jorge More' (more@mcs.anl.gov) or Stefan Wild

(wild@mcs.anl.gov).

A U.S. Department of Energy laboratory managed by UChicago Argonne,

LLC, Argonne is an equal opportunity employer, and we value diversity

in our workforce.

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

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

Date: Tue, 16 Feb 2010 16:42:25 +0000

**Subject: Contents, Nonlinearity, volume 23, issue 3, March 2010**

NONLINEARITY

Volume 23, Issue 3, March 2010

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

web. This issue is available at: URL:

http://stacks.iop.org/0951-7715/23/i=3

Pages: 465--766

PAPERS

465

Baby Skyrmion chains

David Foster

475

Study of the noise-induced transition and the exploration of the phase

space for the Kuramoto--Sivashinsky equation using the minimum action

method

X Wan, X Zhou and W E

495

Multiscale self-affine Sierpinski carpets

Yongxin Gui and Wenxia Li

513

On the approximation of Lyapunov exponents and a question suggested by

Anatole Katok

Xiongping Dai

529

Multiple solutions for nonlinear Neumann problems with the $p$-Laplacian

and a nonsmooth crossing potential

N S Papageorgiou and G Smyrlis

549

Global regularity for the critical dispersive dissipative surface

quasi-geostrophic equation

Alexander Kiselev and Fedor Nazarov

555

Quasi-periodic solutions and stability of the equilibrium for

quasi-periodically forced planar reversible and Hamiltonian systems under

the Bruno condition

Heinz Han\ssmann and Jianguo Si

579

Self-similar solutions with algebraic decay for a non-local coagulation

equation

Shangbing Ai

589

On 3-manifolds that support partially hyperbolic diffeomorphisms

Kamlesh Parwani

607

Preservation of support and positivity for solutions of degenerate

evolution equations

David M Ambrose and J Douglas Wright

621

Resonance bifurcations from robust homoclinic cycles

Claire M Postlethwaite and Jonathan H P Dawes

643

Which hole is leaking the most: a topological approach to study open

systems

V S Afraimovich and L A Bunimovich

657

Non-self-similar dead-core rate for the fast diffusion equation with strong

absorption

Jong-Shenq Guo, Chia-Tung Ling and Philippe Souplet

675

On the determination of the nonlinearity from localized measurements in a

reaction--diffusion equation

Lionel Roques and Michel Cristofol

687

Non-hyperbolic ergodic measures with large support

Christian Bonatti, Lorenzo J D\' \i az and Anton Gorodetski

707

Trajectory and smooth attractors for Cahn--Hilliard equations with inertial

term

Maurizio Grasselli, Giulio Schimperna and Sergey Zelik

739

Numerical continuation of canard orbits in slow--fast dynamical systems

M Desroches, B Krauskopf and H M Osinga

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

End of NA Digest

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