NA Digest, V. 21, # 12

NA Digest Sunday, April 04, 2021 Volume 21 : Issue 12

Today's Editor:

Daniel M. Dunlavy
Sandia National Labs

Today's Topics: Subscribe, unsubscribe, change address, or for na-digest archives:

Submissions for NA Digest:

From: Agnieszka Miedlar
Date: April 02, 2021
Subject: Live Performance, Singular Value Decomposition, Arts at CERN/IARI

It is my great pleasure to invite everyone to this experimental live
performance emerging from a collaboration between Arts at CERN, the
official arts program of the European Organization for Nuclear
Research (CERN) and the Integrated Arts Research Initiative (IARI) at
the Spencer Museum of Art at the University of Kansas (KU) that will
include a live dancer, Vinson Fraley, and musician, Earl Maneein,
layered with video footage from CERN that has been manipulated by
mathematical techniques used in quantum mechanics.

The performance - titled "Singular Value Decomposition" - is grounded
in research by Agnieszka Miedlar, IARI faculty fellow and assistant
professor of mathematics; Daniel Tapia Takaki, associate professor of
physics & astronomy; Clint Hurshman, IARI graduate fellow and student
of philosophy; Olivia Johnson, IARI undergraduate fellow and student
of mathematics and dance; and Janet Biggs, a New York-based video
installation artist. Joey Orr, the Spencer Museum's curator for
research, has guided the collaboration in the production of new work
at the boundaries of science and visual art.

Hope to see many of you joining us!

From: Paul Van Dooren
Date: April 02, 2021
Subject: Call for Nominations, Hans Schneider Prize, Due Sep 2021

The 2022 Hans Schneider Prize in Linear Algebra Committee has been
appointed by the ILAS President upon the advice of the ILAS Executive
Board. It consists of: Rajendra Bhatia, Anne Greenbaum, Leslie Hogben,
Martha Takane, Paul Van Dooren (chair) and Daniel Szyld (ILAS
president - ex-officio member).

It is the responsibility of the committee to solicit nominations and
to make a recommendation to the ILAS Executive Board for this Prize to
be awarded at the ILAS 2022 meeting in Galway.

Nominations of distinguished individuals judged worthy of
consideration for the Prize, are now being invited from members of
ILAS and the linear algebra community in general.
In nominating an individual, the nominator should include:
(1) a brief biographical sketch, and
(2) a statement explaining why the nominee is considered worthy of the
prize, including references to publications or other contributions
of the nominee which are considered most significant in making
this assessment.

The prize guidelines can be found at
and the list of all Hans Schneider Prize winners at

Nominations are open until September 30, 2021 and should be sent by
email to the chair, Paul Van Dooren (
The committee may ask the nominator to supply additional information.

From: Jens Markus Melenk
Date: April 02, 2021
Subject: ICOSAHOM, ONLINE, Jul 2021

ICOSAHOM 2020/2021 will take place as an online conference July
12-16,2021. Deadline for abstract submission is April 30,2021. The
ICOSAHOM conference series brings together researchers and
practitioners with an interest in the theoretical, computational and
applied aspects of high-order and spectral methods for the solution of
differential equations. Please visit for
more information about the conference.

From: Oliver Ernst
Date: April 03, 2021
Subject: Faculty Position, Numerical Methods for PDEs, TU Chemnitz, Germany

The Department of Mathematics at the Technical University of Chemnitz
invites applications for a W3-Professorship (tenured) in Numerical
Methods for Partial Differential Equations

Successful candidates are expected to be internationally visible in an
area of numerical methods for partial differential equations with a
strong focus on applications, preferably related to optimization. Of
special interest are also the areas of inverse problems, stochastic or
random differential equations and scientific machine learning.

The official advertisement in German and English for this search is
found at
and contains additional details.

The closing date is May 2, 2021.

From: Department of Computer Science, Hong Kong Baptist University
Date: April 01, 2021
Subject: Professor Positions, Computer Science, Hong Kong Baptist Univ

The Department of Computer Science at Hong Kong Baptist University,
presently offers BSc, MSc, MPhil, and PhD programmes, and is now
seeking outstanding applicants for the following faculty positions on

Professor / Associate Professor / Assistant Professor (Computer
Science) (2 vacancies) (PR0311/18-19)

The appointees will perform high-impact research, to teach and
supervise students at undergraduate and postgraduate levels, and to
contribute to professional and institutional services. Collaboration
with other faculty members in research and teaching is also
expected. They will be encouraged to collaborate with colleagues
within the Department to contribute to two special thematic
applications including (a) health informatics and (b) secure and
privacy-aware computing, and to pursue new strategic research
initiatives under the Department/Faculty/University. Applicants
should possess a PhD degree in Computer Science, Computer Engineering,
Information Systems, or a related field, and sufficiently demonstrate
abilities to conduct high-quality research in areas including but not
limited to: Internet of things, Cyber-security, High-performance
computing, Big data analytics, and Financial technologies.

Review of applications is on-going until the position is filled.


From: Gabriela Michalek
Date: March 29, 2021
Subject: Junior Professorship Position, Numerical Optimal Control, Germany

The Department of Mathematics and Statistics of the University of
Konstanz seeks to fill the position of Junior Professorship in
Numerical Optimal Control (f/m/d, full-time, German salary level W1)
by October 1, 2021. The junior professorship is non-tenured. The
application deadline is 25th of April 2021.

The call for applications incl. exact requirements and link to the
online application portal can be found here:

The University of Konstanz is committed to ensuring an environment
that provides equal opportunities and promotes diversity as well as a
good balance between university and family life. As an equal
opportunity employer, we strive to increase the number of women
working in research and teaching. We also support working couples
through our dual career programme. Persons with disabilities are
explicitly encouraged to apply. They will be given preference if
appropriately qualified.

From: Konstantinos Zygalakis
Date: April 02, 2021
Subject: Research Associate Positions, Edinburgh

Two postdoctoral positions are now available at the University of
Edinburgh and Heriot-Watt University. The aim of the project is to
develop a new mathematical and computational framework to solve
challenging inverse problems related to low-photon imaging, with
special attention to new quantum-enhanced imaging technologies that
exploit the quantum nature of light in order to dramatically advance
imaging sciences. The framework will be rooted in the Bayesian
statistical paradigm and combine modern ideas from applied analysis,
high-dimensional computational statistics, and machine learning. The
project will be developed in partnership with the Heriot-Watt
Institute for Sensors, Signals, and Systems, and in close
collaboration with the UK Quantum Technology Hub in Quantum Enhanced
Imaging, ENS Paris Saclay, the University of Illinois, and the
industrial partner Leonardo UK. The project is funded by UKRI EPSRC
(EP/V006134/1 and EP/V006177/1).

This is a highly multidisciplinary project. We are looking to hire
Postdoctoral Research Associates with either:
1. A strong mathematical profile to lead the theoretical and
methodological aspects of the project, with experience in the
analysis of stochastic optimization or sampling algorithms.
2. A strong computational imaging profile to lead the computational,
algorithmic, imaging, and application-specific aspects of the

Both positions are 36-month fixed-term contracts. One will be employed
by the School of Mathematics at the University of Edinburgh, and the
other one by the School of Mathematical and Computer Sciences at
Heriot-Watt University.

In order to apply please follow the instruction on

Candidates can make informal enquiries about this position to Dr
Konstantinos Zygalakis (, and Dr Marcelo Pereyra

From: Zheng Zhang
Date: March 31, 2021
Subject: Postdoc Position, Low-precision High-dimensional AI

Prof. Zheng Zhang at UCSB is looking for a postdoc candidate to work
on low-precision/mixed-precision numerical methods for training high-
dimensional machine learning models on energy-efficient edge computing
platforms. Candidates with strong background in low-precision or
mixed- precision numerical methods (or numerical optimization) will be
highly preferred. Previous experience in machine learning training
algorithms (e.g., SGD-type algorithms) will be a plus but is not
required. We will collaborate closely with our industrial partners
from Facebook AI and Intel Research Labs.

Interested applicants please directly send your CV, representative
publications and contact for referees to Prof. Zheng Zhang by email:

Details of the PI's group can be found here:

From: Des Higham
Date: April 01, 2021
Subject: Postdoc Position, Mathematics of Adversarial Attacks

Mathematics of Adversarial Attacks: this project will use tools from
numerical analysis to study algorithms that are designed to fool AI

18 month post doc position with Des Higham in the School of
Mathematics at the University of Edinburgh, UK. Funded by the
Engineering and Physical Sciences Research Council.

Details at

From: Chen Greif
Date: April 01, 2021
Subject: Postdoc Position, Univ of British Columbia

A postdoctoral position is now open in a multidisciplinary project
involving research groups of Dr. Chen Greif from the Department of
Computer Science and Drs. Mark Thachuk and Alex Wang from the
Department of Chemistry at the University of British Columbia
(Vancouver, Canada).

Work of the successful candidate will revolve around the numerical
solution of nonlinear eigenvalue problems and fast computation of
multivariate integrals arising from applications in chemistry, and
will involve the development of numerical software.

A PhD in mathematics, computer science, or a related discipline with
expertise in scientific computing is required. Knowledge of
computational chemistry is an advantage, though not a requirement.

Please submit (i) a cover letter describing your research experience
and qualifications, (ii) a curriculum vitae, and (iii) contact
information of three references to Chen Greif , with the subject line

For full consideration, please apply by Monday, April 19,
2021. Applications will be considered until the position is
filled. The intended start date is September 1, 2021. An earlier or
later start date may be considered.

From: Karol Mikula
Date: March 31, 2021
Subject: PhD Position, INFLANET EU Project, Bratislava

There is an open call for PhD student position in the framework of
European project INFLANET at the Slovak University of Technology in
Bratislava. The PhD position is devoted to application of nonlinear
partial differential equations and numerical methods in image analysis
of biology and medical data and to the mathematical and computational
modelling of acquired biology and medical processes. Our PhD student
will closely cooperate with biologists from various European
laboratories included in the network and the main goal will be to
study mathematically the immune system response to inflammation caused
by viruses, bacteria or injuries. The gross salary will be about 2350
euro and university can offer accommodation in a reasonable price.

The planned beginning of this position is September 2021 and we plan
to close the candidates selection in the beginning of May,
2021. Further information on the project and recruitment for the
position is available at:

The interested candidate, please, contact Prof. Karol Mikula
( and/or apply directly through the electronic

From: Volker Mehrmann
Date: April 02, 2021
Subject: PhD Positions, Research Training Group Daedalus

Within the research training group

DAEDALUS: Differential Equation and Data-driven Models in Life
Sciences and Fluid dynamics

several PhD positions are available.

The advertisement and project descriptions can be found on the
DAEDALUS websites:

The application deadline is April 30, 2021.

From: Matthias Gobbert
Date: March 30, 2021
Subject: REU Site on Big Data with HPC, ONLINE, Jun-Jul 2021

Please forward this information to undergraduate students who might be
interested in our online REU (Research Experiences for Undergraduates)
Site program Online Interdisciplinary Big Data Analytics in Science
and Engineering. It is a purely online program open to students from
the entire nation. The 8-week program will include training in
fundamentals of HPC software (MPI) and productivity tools (like SLURM)
on large distributed-memory clusters with CPUs and GPUs as well as Big
Data Analytics applications like Tensorflow, Keras, Horovod.

Each student will receive a stipend of $5,000 for participation and
provided with opportunities to present their work at conferences. We
are looking for students from all STEM disciplines and particularly
also for students from the mathematical sciences who are interested in
gaining both HPC and application experience.

More information on the program and the application material can be
found at The tentative application
deadline is 04/15/2021. The two project topics planned for summer 2021
are (i) Big Data and Machine Learning Techniques for Sea Ice
Prediction and (ii) Big Data and Machine Learning Techniques for
Medical Image Classification. Please distribute this opportunity to
undergraduate students and additional colleagues/communities you see
fit. Thank you very much! And do not hesitate to contact us with
questions: Matthias Gobbert ( and Jianwu Wang

From: Computational methods in applied mathematics
Date: March 29, 2021
Subject: Contents, Computational Methods in Applied Mathematics, 2021 (2)

Computational methods in applied mathematics (2021), No 2

Special issue on reliable methods of mathematicsl modeling

Reliable Methods of Mathematical Modeling, Dirk Praetorius, Sergey
Repin, Stefan A. Sauter

Optimal Convergence Rates for Goal-Oriented FEM with Quadratic Goal
Functional, Roland Becker, Michael Innerberger, Dirk Praetorius

A Priori and a Posteriori Error Analysis of the Crouzeix-Raviart and
Morley FEM with Original and Modified Right-Hand Sides, Carsten
Carstensen, Neela Nataraj

A Space-Time Adaptive Algorithm to Illustrate the Lack of Collision of
a Rigid Disk Falling in an Incompressible Fluid, Samuel Dubuis, Marco
Picasso, Peter Wittwer

On the Energy Stable Approximation of Hamiltonian and Gradient
Systems, Herbert Egger, Oliver Habrich, Vsevolod Shashkov

Reliability and Efficiency of DWR-Type A Posteriori Error Estimates
with Smart Sensitivity Weight Recovering, Bernhard Endtmayer, Ulrich
Langer, Thomas Wick

A Locking-Free DPG Scheme for Timoshenko Beams, Thomas Fuhrer, Carlos
Garcia Vera, Norbert Heuer

Smoothed-Adaptive Perturbed Inverse Iteration for Elliptic Eigenvalue
Problems, Stefano Giani, Luka Grubisic, Luca Heltai, Ornela Mulita

Energy Contraction and Optimal Convergence of Adaptive Iterative
Linearized Finite Element Methods, Pascal Heid, Dirk Praetorius,
Thomas P. Wihler

Quasi-Optimal and Pressure Robust Discretizations of the Stokes
Equations by Moment- and Divergence-Preserving Operators Christian
Kreuzer, Rudiger Verfurth, Pietro Zanotti

Contractive Local Adaptive Smoothing Based on Dorfler's Marking in
A-Posteriori-Steered p-Robust Multigrid Solvers, Ani Miraci, Jan
Papez, Martin Vohralik

Uniform Preconditioners of Linear Complexity for Problems of Negative
Order, Rob Stevenson, Raymond van Venetie

An Exact Realization of a Modified Hilbert Transformation for
Space-Time Methods for Parabolic Evolution Equations, Marco Zank

From: Ali R. Soheili
Date: April 03, 2021
Subject: Contents, Iranian J of Numerical Analysis and Optimization, 11 (1)

Iranian Journal of Numerical Analysis and Optimization Volume 11,
Issue 1 - Serial Number 19, Winter and Spring 2021, Pages 1-233


1) Solving fuzzy multiobjective linear bilevel programming problems
based on the extension principle, A. Abbasi Molai

2) The time-dependent diffusion equation: An inverse diffusivity
problem, S.H. Tabasi; H.D. Mazraeh; A.A. Irani; R. Pourgholi;
A. Esfahani

3) An approximate solution for a system of fractional
integro-differential equations by Muntz Legendre wavelet,
Y. Barazandeh

4) Monotonicity-preserving splitting schemes for solving balance laws,
F. Khodadosti; J. Farzi; M.M. Khalsaraei

5) Toeplitz-like preconditioner for linear systems from spatial
fractional diffusion equations, N. Akhoundi

6) A high-order algorithm for solving nonlinear algebraic equations,
A. Ghorbani; M. Gachpazan

7) Computation of eigenvalues of fractional Sturm-Liouville problems,
E.M. Maralani; F.D. Saei; A.A.J. Akbarfam; K. Ghanbari

8) Using approximate endpoint property on existing solutions for two
inclusion problems of the fractional q-differential, G.K. Ranjbar;
M.E. Samei

9) Hopf bifurcation analysis in a delayed model of tumor therapy with
oncolytic viruses, N. Akbari; R. Asheghi

10) ADI method of credit spread option pricing based on jump-diffusion
model, R. Mohamadinejad; A. Neisy; J. Biazar

11) An adaptive descent extension of the Polak-Rebiire-Polyak
conjugate gradient method based on the concept of maximum
magnification, Z. Aminifard; S. Babaie-Kafaki

12) Some applications of Sigmoid functions, M. A. Jafari; A. Aminataei

The Iranian Journal of Numerical Analysis and Optimization (IJNAO)
publishes original papers of high scientific value in all areas of
numerical analysis and optimization. IJNAO is an open-access journal
and all contributions to IJNAO are published free of charge and there
is no article submission charge. The Iranian Journal of Numerical
Analysis and Optimization is indexed in Scopus, zbMATH, DOAJ, and COPE
For more information, please visit:

End of Digest