NA Digest Tuesday, April 11, 2023 Volume 23 : Issue 11

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: Marlis Hochbruck
Date: April 07, 2023
Wilhelm Niethammer (1933-2023)
Wilhelm Niethammer, professor emeritus at the University of Karlsruhe,
assed away at his home in Karlsruhe on March 17, 2023. Born in
Unterjettingen, a small village close to Stuttgart, he studied
mathematics with minor in physics at the universities of Stuttgart and
Tuebingen, where his mathematical interests were strongly influenced
by the "three K's" (E. Kamke, H. Kneser, K. Knopp). Originally, he
wanted to become a teacher but then changed to academia. He completed
his doctoral thesis under the supervision of Karl Zeller in 1964. In
this dissertation, he applied algorithms and ideas from complex
analysis to the iterative solution of linear systems of algebraic
equations, a topic which he was concerned with throughout his
scientific life.

Wilhelm Niethammer continued this academic career at the University of
Bochum. In 1970, he was appointed professor at the University of of
Mannheim. In 1978, he accepted the call to the professorship
"Numerische Mathematik und Grossrechenanlagen" at the University of
Karlsruhe, where he headed the "Institut fuer Praktische Mathematik"
until his retirement in 2002.

Wilhelm Niethammer was well known for his work in constructive complex
analysis and numerical linear algebra. He supervised 17 PhD
dissertations and several of his students went on to academic
positions. His students and colleagues remember him as a competent,
generous, helpful and always kind person. He served the mathematical
community in many other ways, e.g., he was chair of the Department of
Mathematics in Karlsruhe, he served as "Fachgutachter" for applied
mathematics on behalf of the Deutsche Forschungsgemeinschaft (DFG) and
led the DFG advisory board responsible for mathematics in the
1990's. In addition he was on the editorial board of various
mathematical journals and, together with Richard S. Varga, organised
several conferences at the Oberwolfach Research Institute for
Mathematics. Having been an enthusiastic mountain hiker (he mastered
the Kilimanjaro in his late 50's), these conferences were famous for
their hikes, starting with a steepest ascent right from the conference

Wilhelm Niethammer is survived by this wife and his two children, his
daughter Barbara Niethammer being herself a well-known professor for
Applied Analysis at the Hausdorff Center for Mathematics in Bonn.

Michael Eiermann, Martin Hanke, Marlis Hochbruck, and Gerhard Starke

From: Hans De Sterck
Date: April 09, 2023
Subject: Enhancing reproducibility of research papers in SISC, JSC and JCP

The following will be published as a joint editorial in SISC, JSC and

Reproducibility, that is, the ability to reproduce results obtained by
others, is a core principle of the scientific method. In a concerted
effort to enhance reproducibility in the area of scientific computing
research, three of the leading journals in the scientific computing
field will now invite authors, as part of the article submission
process, to make the code and data publicly available that allow the
results of their paper to be reproduced.

At article submission, the SIAM Journal on Scientific Computing
(SISC), the Journal of Scientific Computing (JSC), and the Journal of
Computational Physics (JCP) encourage authors to provide a link to
their code and data files hosted in either a public git repository
(e.g., on GitHub or Bitbucket), an open repository with DOI
identification such as Zenodo or Mendeley Data, or journal
supplementary materials.

At JCP and JSC, the link pointing to the code and data will be
published prominently together with the paper. At SISC, authors may
request a "SISC Reproducibility Badge: code and data available" which
will be published with the paper as a recognition that the paper
follows reproducibility principles.

While we acknowledge that it is not always possible for authors to
make their code and data available, there are many good reasons to
encourage authors to do so, including enhanced visibility and adoption
of their work by the research community. We hope sincerely that many
authors will take advantage of these new options to enhance and
highlight the reproducibility of their scientific computing

Hans De Sterck, Editor-in-Chief, SIAM Journal on Scientific Computing
Chi-Wang Shu, Editor-in-Chief, Journal of Scientific Computing
Remi Abgrall, Editor-in-Chief, Journal of Computational Physics

From: Mahboub Baccouch
Date: April 07, 2023
Subject: Midwest Numerical Analysis Day, USA, Apr 2023

The Department of Mathematics at Iowa State University (ISU) will be
hosting the Midwest Numerical Analysis Day 2023 on Saturday April 29,
2023. The conference will consist of three plenary talks, parallel
sessions, and a poster session. The primary conference site is Carver
Hall on the ISU Campus. For more information please see the website

Conference registration deadline: Tuesday, April 11, 2023

For more information about the Midwest Numerical Analysis Day
Conference Series, please visit

From: Michael Bader
Date: March 28, 2023
Subject: Supercomputing Spotlights, Karen Willcox, Apr 2023

"Digital Twins: How High-Performance Computing is Personalizing the
Future for Complex Systems"
Presenter: Karen E. Willcox, University of Texas at Austin

Wednesday, April 19, 2:00-2:40 pm UTC (30 min talk + 10 min questions)
7 am PDT / 9 am CDT / 10 am EDT / 2 pm UTC / 4 pm CEST / 11 pm JST
Participation is free, but registration is required

Registration link:

Abstract: Could you imagine one day having a dynamically evolving
virtual replica of yourself that your doctor could use to drive
personalized decisions to optimize your health and well-being? In
engineering, these personalized dynamic computational models are known
as digital twins, and are already being used to drive predictive
maintenance decisions for aircraft and aircraft engines. This talk
will discuss the high-performance computing and computational science
that goes into creating a digital twin, and will discuss exciting new
directions for digital twins in engineering, geosciences and medicine.

For further information on our speaker Karen Wilcox and on the
Supercomputing Spotlights webinar series, see

From: Katiuscia Teixeira
Date: March 31, 2023
Subject: REU, Applied and Computational Mathematics, USA, May-Jul 2023

The Department of Mathematics at University of Central Florida (UCF)
will host an NSF Research Experiences for Undergraduates (REU) on
"Applied and Computational Mathematics" in Summer 2023. This is a 10-
week intensive program that actively engages undergraduate students in
research-based theory and applications of mathematical technologies
supporting new solutions to interdisciplinary problems.

The program will be held in-person from May 22 through July 28, 2023.
The application deadline is April 21, 2023. Applications from women
and underrepresented minority students are strongly encouraged.

For more information about the REU-ACM and the application process,
please visit our website

Please share this opportunity with undergraduate students and
colleagues. Thank you very much for your collaboration!

From: Franziska Nestler
Date: April 05, 2023
Subject: Women in Data Science, Germany, May 2023

We are happy to announce the second Women in Data Science (WiDS)
Conference at TU Chemnitz, Germany, to take place on May 4 - 5, 2023.

WiDS Chemnitz is an independent event that is organized by members of
the junior research group SALE
( as part of the annual
WiDS Worldwide conference, the WiDS Datathon, and an estimated 200
WiDS Regional Events worldwide. Everyone(!) is invited to attend all
WiDS conference and WiDS Datathon Workshop events which feature
outstanding women doing outstanding work.

Besides a fantastic list of invited talks
- Theresa Zuger (Alexander von Humboldt Institute for Internet and
Society): "How AI can serve the public interest"
- Kathrin Hatz (Bayer AG, R&D Crop Science):
"Data Science for Crop Science"
- Myra Spiliopoulou (Otto-von-Guericke-University Magdeburg):
"Prediction on Little Data - Treatment Outcome Prediction"
- Anastasiia Platovskikh (GK Artificial Intelligence for Retail AG):
"Algorithms behind Dynamic Pricing"
- Sina Brunsch (Intenta Automotive GmbH):
"Automotive Applications: Labeling and Localization"
we plan to give PostDocs or PhD students the chance to present their
work during poster sessions. We imagine WiDS Chemnitz to be an
easy-going event supporting women in the field of data science and
helping them to gain exposure for their work, and connecting
like-minded researchers across career stages.

More details as well as the registration form can be found on our
website Participation is
free of charge. Registration deadline is April 27, 2023.

From: Shawn Walker
Date: April 06, 2023
Subject: Workshop Honoring R. H. Nochetto's 70th Birthday, USA, May 2023

We are announcing the workshop: "Frontiers of Numerical PDEs:
Fractional Differential Equations, Geometric Evolution, Liquid
Crystals, Optimal Transport, and Adaptivity" which will be held at the
Brin Mathematics Research Center at the University of Maryland (UMD),
College Park, May 16-19, 2023. More information can be found on the

We have a wide range of talks, including the following plenary
speakers: Mark Ainsworth, Brown University; Zhiming Chen, Academy of
Mathematics and Systems Science, Chinese Academy of Sciences; Bernardo
Cockburn, University of Minnesota; Ronald DeVore, Texas A&M
University; Giuseppe Savare, Bocconi University; James Sethian, UC
Berkeley; Jinchao Xu, Pennsylvania State University.

We hope that you can attend, but note that registration is limited.

From: Dmitri Kvasov
Date: March 31, 2023
Subject: Deadline Extension, NUMTA2023, Italy, Jun 2023

The 4th International Triennial Conference and Summer School
'Numerical Computations: Theory and Algorithms' (NUMTA2023: will be held (in hybrid format) from 14 to 20
June 2023 in Calabria, Italy, at the all-inclusive resort "Tui Magic
Life Calabria" on the Tyrrhenian coast and close to the Lamezia Terme
international airport. The Conference is organized by the University
of Calabria, Department of Computer Engineering, Modelling,
Electronics and Systems Science, Italy, in cooperation with the
Society for Industrial and Applied Mathematics (SIAM), USA.

Main topics: Numerical analysis, computational models, optimization
and machine learning, and emerging computational paradigms.

The deadline for submitting one-page abstracts has been extended to
April 11, 2023.

Confirmed plenary lectures and tutorials: Luigi Brugnano (Florence,
Italy), Lou D'Alotto (New York, USA), Renato De Leone (Camerino,
Italy), Kalyanmoy Deb (Michigan, USA), Hoai An Le Thi (Metz, France),
Francesca Mazzia (Bari, Italy), Panos Pardalos (Florida, USA), Witold
Pedrycz (Edmonton, Canada), Yaroslav Sergeyev (Rende, Italy), Vassili
Toropov (London, UK), Nick Trefethen (Oxford, UK).

Participants regularly registered for NUMTA may also submit their full
papers to the post-conference proceedings that will be published in
the Springer LNCS series. Special issues of prestigious international
journals dedicated to the Conference will be published, among them:
Springer's "Soft Computing" journal.

From: Alexander Heinlein
Date: April 05, 2023
Subject: European Trilinos User Group Meeting, The Netherlands, Jun 2023​

The European Trilinos User Group Meeting 2023 (EuroTUG 2023) meeting
will take place on the campus of the Delft University of Technology,
Delft, The Netherlands on June 28-30, 2023. For more details, please
visit; the website will be updated

The EuroTUG Meeting 2023 welcomes participants on all levels of
expertise who are interested to learn about recent developments in
Trilinos, report on their use cases and experiences with Trilinos,
interact with the Trilinos leadership and core developers, form a
European network of Trilinos users and developers.

The meeting program will encompass Introductory tutorials on Trilinos
and Kokkos; Talks by active Trilinos developers on recent developments
and trends; Presentations by active Trilinos users to showcase various
application scenarios of Trilinos; Group discussions on relevant

In order to participate in the EuroTUG Meeting 2023, please fill the
registration form available on prior to May
19, 2023. Registration is required for speakers as well as attendees
without a contribution. Note that it is also possible to register only
for the introductory Trilinos tutorials on June 28, 2023. The
registration is free of charge.

If you have any questions or trouble with the registration, feel free
to contact us via email at

From: Martin Stynes
Date: March 30, 2023
Subject: Numerical Methods for Fractional-Derivative Problems, China, Jul 2023

The 7th Conference on Numerical Methods for Fractional-Derivative
Problems will be held at Beijing Computational Science Research Center
during 27-29 July. The conference talks each day will be held between
08:30-17:30 approximately. Talks will be given in Chinese or English,
according to the speaker's preference.

For a list of confirmed speakers and full details regarding the
conference, see the conference website

The registration deadline is 14 July. Registration at the conference
website is now open.

A few slots are still open for contributed talks; if you wish to
submit a talk, then email your title and abstract (not more than 1
page) to as soon as possible.

From: Alex Townsend
Date: April 05, 2023
Subject: Extended Registration, Nick Trefethen's Retirement, UK, Aug 2023

Numerical Analysis in the 21st century,
University of Oxford, 14-17 August 2023

In celebration of the retirement of Nick Trefethen from Oxford

Nick Trefethen is a leading figure in numerical analysis for his work
in approximation theory (incl. the Chebfun project), pseudospectra,
numerical linear algebra, and numerical complex analysis. The meeting
will be an opportunity to celebrate his significant research
contributions on the occasion of his retirement from Oxford. The
conference has a broad theme of new developments in all areas of
numerical analysis and computation. The registration deadline for
contributed talks is the 30th April, 2023.

Plenary speakers: Folkmar Bornemann, Coralia Cartis, Toby Driscoll,
Alan Edelman, Mark Embree, Martin Gander, Kathryn Gillow, Abinand
Gopal, Anne Greenbaum, Nick Hale, Nick Higham, Daan Huybrechs, Randy
LeVeque, Gunnar Martinsson, Cleve Moler, Cecile Piret, Steven
Strogatz, Anna-Karin Tornberg, Laurette Tuckerman, Andre Weideman,
Heather Wilber.

30 April 2023: New registration deadline for contributed talks
14-17 August 2023: Conference dates
15 August 2023: Banquet in Balliol College

From: Peter Rashkov
Date: March 27, 2023
Subject: Mathematical Perspectives on Immunobiology, Bulgaria, Sep 2023

The Institute of Mathematics and Informatics at the Bulgarian Academy
of Sciences is organising a Workshop on Mathematical Perspectives on
Immunobiology, scheduled for 11-14 September 2023 in Blagoevgrad,

The workshop's topics include mathematical modeling and computational
analysis of phenomena and processes in the immune system,
host-pathogen interactions, onset and progress in human diseases.

Please save the date and visit the workshop's website for further

Deadline for abstract submission: 23 June 2023

From: Pamela Bye
Date: April 03, 2023
Subject: Mathematics in Defence and Security, UK, Sep 2023

Mathematics Adapting to a Changing World
7th September 2023, Imperial College, London, UK

This conference aims to bring together a wide variety of participants
and topics applying a variety of mathematical methods with defence and
security applications. The programme will include invited speakers,
presentations and poster sessions, as well as refreshment breaks for
informal discussions. It is aimed towards mathematicians, scientists
and engineers from both industry and academia, in addition to
government and military personnel who have an interest in how
mathematics can be applied to defence and security problems.

Invited Speakers: Jason Field, Richard Pinch: Mathematical challenges
in security, Tim Watson, Richard Lane, Rachel Craddock.

Registration is now open via

For further information or to register your interest, please contact
the Conferences Department:

From: Miriam Schulte
Date: April 03, 2023
Subject: Registration Open, SimTech, Germany, Oct 2023

Registration is now open for SimTech 2023
( from October 4 to 6 at the
University of Stuttgart.

Early Bird Fee (until 15 May): 250 EUR
Late Registration (from 16 May): 350 EUR

Poster abstract submission closes April 7, 2023. Please submit your
abstract as a single pdf file to using the latex template
provided at

Notification of acceptance: April 30, Early Registration Deadline May 15.

Feel free to forward this call to interested colleagues! We are
looking forward to welcoming you in Stuttgart.

From: Anand Panangadan
Date: March 29, 2023
Subject: High Performance Computing, Data, and Analytics, India, Dec 2023

30th IEEE International Conference on High Performance Computing,
Data, and Analytics (HiPC)
December 18-21, 2023, Goa, India,

HiPC 2023 will be the 30th edition of the IEEE International
Conference on High Performance Computing, Data, Analytics, and Data
Science. HiPC serves as a forum to present current work by researchers
from around the world as well as highlight activities in Asia in the
areas of high performance computing and data science. The meeting
focuses on all aspects of high performance computing systems, and data
science and analytics, and their scientific, engineering, and
commercial applications. Authors are invited to submit original
unpublished research manuscripts that demonstrate current research in
all areas of high performance computing, and data science and
analytics, covering all traditional areas and emerging topics
including from machine learning, big data analytics.

Abstract Submission: 30 June, 2023
Paper Submission: 7 July, 2023

Please see the following site for details:

From: Karol Mikula
Date: March 31, 2023
Subject: ALGORITMY 2024, Slovakia, Mar 2024

ALGORITMY 2024 conference call for minisymposia and registration is
open. Please visit the webpage:

ALGORITMY 2024 will be held on March 15-20, 2024 in the High Tatra
Mountains (Vysoke Tatry) in Slovakia and is devoted to computational
algorithms, their analysis, efficient implementation and application
to real- world problems arising from natural sciences, engineering,
industrial technologies, medicine and finance. The programme of the
conference will consist of invited plenary lectures, compact two-hours
invited and accepted minisymposia, parallel sessions of contributed
talks and a poster session.

The main topics of the ALGORITMY 2024 conference are computational
fluid dynamics and nonlinear conservation laws, nonlinear diffusion,
heat transfer and porous media flow, free boundary problems and
interface motions, image processing, analysis and classification,
inverse problems, machine and deep learning, numerical linear algebra,
computer vision, computer graphics and visualization, computational
biology and medicine, computational geosciences and remote sensing,
computational finance, high-scale and parallel computing and software
for scientific and industrial computations.

From: Michael Bader
Date: April 04, 2023
Subject: SIAM Parallel Processing for Scientific Computing, USA, Mar 2024

Call for Papers: SIAM Conference on Parallel Processing for Scientific
Computing - SIAM PP24
March 4-8, 2024 - Lord Baltimore Hotel, Baltimore, MD

The SIAM Conference on Parallel Processing for Scientific Computing
(SIAM PP24) and the SIAM Activity Group on Supercomputing (SIAG-SC)
invite research paper submissions (deadline: June 30) on parallel
algorithms, scalable scientific computing, simulation, visualization,
and machine learning. The SIAM PP conference series focuses on the
design of numerical and discrete algorithms in the context of modern
parallel computer architectures, covering both theory and practice.

Full Call for Papers:

The research papers will be peer-reviewed. We will use a rigorous
academic peer-review process and single-blind reviewing (resembling a
journal-style review process, with a short single revision phase).
Accepted papers will be published in the SIAM Proceedings Series on
Parallel Processing for Scientific Computing, will be DOI indexed, and
will be accessible through the SIAM proceedings web site. Accepted
papers will be presented at SIAM PP24 in special sessions in addition
to the standard conference program (minisymposia, posters, contributed
talks, etc.). Please follow the submission instructions (e.g., 10
pages without references, supplementary material will be allowed)
provided on Submission site:

Papers due: June 30, 2023

From: Simon Shaw
Date: March 30, 2023
Subject: Faculty Positions, Brunel Univ London, UK

Brunel University London are recruiting at Lecturer and Senior
Lecturer level. For further details please follow these links:

The roles would particularly suit those with an interest in teaching
to our Maths for Data Science students at our partner university in

From: Marie Stöbe
Date: March 27, 2023
Subject: Research Associate Position, WIAS, Germany

The Weierstrass Institute for Applied Analysis and Stochastics (WIAS)
is an institute of the Forschungsverbund Berlin e.V. (FVB). The FVB
comprises seven non-university research institutes in Berlin which are
funded by the federal and state governments. The research institutes
belong to the Leibniz Association. WIAS invites applications for a
Research Assistant Position (f/m/d) (Ref. 23/06) in the Research Group
"Numerical Mathematics and Scientific Computing" (Head:
Prof. Dr. Volker John) devoted to the topic "Quantitative
Biomedicine", starting as soon as possible.

The successful candidate will work on the development of mathematical
and numerical methods for problems motivated by the usage of medical
imaging for non-invasive clinical diagnostic. Mathematical research
fields of particular interests are forward and inverse modeling in
computational biomechanics (biological flows and tissues), data
assimilation methods, and (data-driven) reduced-order modeling. Both
analytical research questions and technical implementation aspects of
the resulting algorithms are of central importance. Relevant
application fields include the characterization of tissue diseases and
cancer biomarkers from MRI and MR Elastography images, or the modeling
and assimilation of ultrasound images.

Technical queries should be directed to Dr. Alfonso Caiazzo
( This is a full-time position and
initially limited to three years. The Weierstrass Institute is an
equal opportunity employer. We explicitly encourage female researchers
to apply for the offered position. Among equally qualified applicants,
disabled candidates will be given preference. Please upload complete
application documents including cover letter, curriculum vitae,
photocopies of certificates, and transcripts as soon as possible via
our online job-application facility using the button "Apply
online". See here for more information:

From: Martin Berggren
Date: April 04, 2023
Subject: Postdoc Position, Computational Design Optimization, Sweden

The Department of Computing Science at Umea University, Sweden invites
applications for a postdoctoral fellow in the field of Computational
Design Optimization for Wave Propagation Problems. The employment is
full-time for two years starting 2023-06-01 or by agreement.

The project centers around the development of optimization methods for
the design of devices where wave propagation effects are crucial for
performance. Based on the applicant's background, interest, and
skills, the research can be directed in various ways, involving
acoustic as well as electromagnetic wave propagation. Of current
interest for acoustics is the design of devices in the context of
significant loss effects, for instance so- called acoustic black holes
or small-size acoustic devices such as MEMS microphones and micro
loudspeakers. Of interest for electromagnetics is components to enable
efficient radar technologies for monitoring or imaging targets
embedded in lossy media. Ground penetrating radars (GPRs) and radars
for vital signs monitoring of humans are examples of how such
technologies can be applied.

A major part of the research will involve fundamental methods
development. Thus, considerable focus will be given to the development
of accurate and efficient mathematical models and optimization schemes
as well as to efficient implementation of the methods in appropriate

For more information, check out

From: Carola Kruse
Date: April 06, 2023
Subject: Postdoc Position, Grammar-guided Multigrid, France

A two-year Postdoc position is available at Cerfacs, Toulouse. The
project aims to develop concepts and a toolchain based on artificial
intelligence to automatically generate a performant preconditioner for
a Krylov subspace iterative solver for the solution of linear systems
arising from a discretized Stokes problem. We will focus in particular
on a geometric multigrid preconditioner for the (1,1)-block, here, the
Laplace operator, to ensure the scalability of the solver when passing
to large-scale problems. The solver will be broken down into
components, which are then recombined in an optimal manner for
predefined criteria, using evolutionary algorithm design
techniques. The particular difficulty to develop such a toolchain for
saddle point systems is the large number of possible combinations of
solution techniques, e.g., preconditioned Krylov subspace solvers,
Schur complement approaches, deflation and augmentation techniques, or
also monolithic multigrid solvers on the whole block system. As final
step, we envisage to obtain executable code applying the best guess
solver through automatic code generation.

Required profile: PhD with experience in one or several of the
following domains: applied mathematics, computer science, iterative
solvers, numerical linear algebra, artificial intelligence, high
performance computing.

Further information is available at

From: Javier Principe
Date: April 04, 2023
Subject: Postdoc Position, HPC for MagnetoHydroDynamics, Spain

A postdoctoral position is open at the International Centre for
numerical methods in engineering (CIMNE) located in Barcelona (Spain)
to develop advanced HPC methods for the simulation of
MagnetoHydroDynamic flows with the optimal design of fusion
technologies as target. Details of the position and application are
available at

Deadline for application is April 25 2023. Interested candidates are
encouraged to contact Javier Principe at for
any question or further information.

From: Laurent Pfeiffer
Date: April 03, 2023
Subject: Postdoc Position, Optimal Control, CentraleSupelec, France

We are offering a two-year post-doc position to work around the
approximation, the simulation and the optimal control of the Chemical
Master Equation. The post-doc will take place within a collaborative
project between Laurent Pfeiffer, Frederic Bonnans, and Jakob Ruess,
funded by the French National Agency for Research.

The successful candidate will be hosted at the Laboratory of Signals
and Systems, which is part of CentraleSupelec (Gif-sur-Yvette,
France). He/she will also be a member of the DISCO research group of

Please consult the full announcement on the hiring platform of Inria :

From: Shubin Fu
Date: April 07, 2023
Subject: Postdoc Position, Scientific Computing, China

I am looking to fill a postdoc position on scientific computing at
Eastern Institute for Advanced Study located in Ningbo, China. The
duration of this position is two years, the salary is 58,000-87000 USD
per year. He/she is expected to conduct research in the field of
numerical partial differential equations. Good programming skills are
necessary for the position and skills in C++ /Fortran and
high-performance computing technologies (such as MPI, OpenMP, CUDA,
...) are welcome.

Potential applications are encouraged to directly contact Shubin Fu

From: Zhaojun Bai
Date: April 05, 2023
Subject: Postdoc Position, Scientific Computing, USA

The Department of Computer Science, University of California, Davis
invites applicants for a postdoctoral position in scientific
computing. The position is funded by a project with the Department of
Water Resources, State of California on numerical algorithms for
solving large and complex nonlinear systems of equations arising in
integrated hydrologic models. The project will involve the design of
numerical algorithms and mathematical software. The candidate should
be a recent or soon-to-be- completed PhD in numerical analysis and
scientific computing or related fields, has experience in numerical
methods and development of mathematical software, and is interested in
contributing to interdisciplinary collaboration.

The initial appointment period is 1 year, with possibility of
extension. The start date can be as early as July 1, 2023, although
this is negotiable. The first round of reviews will start shortly
after May 1, 2023. The position will remain open until filled.

Applicants should apply by sending (as a single pdf file): a cover
letter and a CV (including the lists of publications and reference
letter writers) to:

From: Alireza Doostan
Date: April 03, 2023
Subject: Postdoc Positions, Aerospace Engineering, CU Boulder, USA

Department at the University of Colorado, Boulder.

The appointees will conduct fundamental research in broad areas of
data- driven modeling, uncertainty quantification, and machine
learning, with a particular focus on multi-fidelity modeling,
generative modeling, transfer learning, deep neural networks, and
inverse problems. Applicants must have a Ph.D. in areas related to
computational sciences or engineering and at least one of the
aforementioned areas.

The positions are for the duration of two year with the possibility of
extension to three years. The appointee will be working with
Prof. Alireza Doostan and a team of experts (from CU Boulder and
Stanford) on large- scale, multi-physics modeling of complex systems
and their HPC implementations.

The interested candidates should submit a CV, a brief (max one page)
statement of research interests, and contact information of two
references to Prof. Doostan ( Questions may be
directed to Prof. Doostan.

From: Svajunas Sajavicius
Date: April 08, 2023
Subject: PhD Position, CAGD, Kaunas Univ of Technology, Lithuania

A fully funded PhD position in Computer Science is being announced by
Kaunas University of Technology (KTU) in Lithuania. The project
focuses on computer-aided geometric design (CAGD) and aims to develop
innovative algorithms and techniques for surface fitting.

Ideal candidates should have a strong academic background in computer
science, mathematics, or engineering, and an interest in geometric

At KTU, we offer a supportive and collaborative research environment
that fosters innovation and creativity. We provide access to
state-of-the-art research facilities, resources, and expertise, as
well as opportunities to collaborate with experts in the field.

Starting date: September 1, 2023
Admission procedure and deadlines:
Project description and entry requirements:

Enquiries about the project and position can be directed to
Dr. Svajunas Sajavicius (

From: Andreas Frommer
Date: April 06, 2023
Subject: PhD Position, Numerical Analysis, Wuppertal Univ

University of Wuppertal offers a 3 years Ph.D. position within a
European project on methods for trace computation of matrix functions
with application in Theoretical Physics. The successful candidate will
be part of the lively and exciting European network AQTIVATE; see
early stage researchers project 2 on We
are looking for a person which will have obtained a Master's degree in
autumn 2023, where the position is supposed to start (early 2024 at
the very latest). A stronger background in numerical linear algebra
would be ideal, some background in physics is helpful. Please send
e-mail to for details about the application

From: Christian Engwer
Date: March 30, 2023
Subject: PhD Position, Scientific Computing, Univ of Munster

At the institute for Analysis and Numerics at University of Munster
(Germany) we are seeking to fill a PhD or Post-doc position in the DFG
funded project "BlockXT - Block methods to transparently accelerate
and vectorise time dependent simulations", starting as soon as
possible. The deadline for application is April 16, 2023.

For details, see
or contact Prof. Christian Engwer.

From: Felix Lucka
Date: April 04, 2023
Subject: PhD Positions, Computational Imaging, CONcISE Project

CONcISE (COmputatioNal Imaging as training Network for Smart
biomedical dEvices) is a new project funded by the European Union's
Marie SkBodowska-Curie Actions (MSCA) of the Horizon Europe programme
that aims to revolutionise biomedical optical imaging techniques. It
brings together eight beneficiaries and four associated partners from
8 European countries to create a training network for 11 PhD
students. The recruiting just started and three of the positions are
of particular interest for students with an interest in computational
imaging and inverse problems:
- "Photon transport modelling and image reconstruction algorithms for
multispectral DOT" will be hosted by the Computational Physics and
Inverse Problems Research Group at the University of Eastern Finland
(Kuopio, Finland) and supervised by Tanja Tarvainen.
- "Adaptive compressed sensing using deep learning in non-linear
microscopy", will be hosted by the Computational Imaging Group at
the Centrum Wiskunde & Informatica (Amsterdam, NL) and supervised by
Felix Lucka and Tristan van Leeuwen.
- "Learned adaptive encoder-decoder architecture for advanced
fluorescence imaging", hosted by the Center for Medical Image
Computing at the University College London (London, UK) and
supervised by Simon Arridge.

All information can be found under

From: Bartosz Protas
Date: March 28, 2023
Subject: MSc/PhD Position, Theoretical Fluid Mechanics, McMaster Univ

An opening for a graduate student (Master's or Ph.D.) is available in
Dr. Protas' research group at McMaster University. The focus of this
position is fundamental investigations of extreme behavior, such as
potential singularity formation, in fluid flow models using a
combination of mathematical analysis and large-scale
computations. Expected background involves (ideally, a combination of)
theoretical fluid mechanics, large-scale scientific computing
(including numerical optimization) and PDE analysis. Details
concerning application procedures are available at the web address

The application deadline is April 30, 2023. Interested candidates may
also contact

Dr. Bartosz Protas
Department of Mathematics & Statistics, McMaster University

for additional information.

From: Lasiecka
Date: March 27, 2023
Subject: Contents, EECT Evolution Equations and Control Theory, 12 (4)

EECT-Evolution Equations and Control Theoty. The Content of volume
12, nr 4 , August 2023.

1.Decay estimates for a perturbed two-terms space-time fractional
diffusive problem
Marcello D'Abbicco and Giovanni Girardi
2023, 12(4): 1056-1082. doi: 10.3934/eect.2022060

2. Partial approximate controllability results for fractional order
stochastic evolution equations using approximation method
Renu Chaudhary
2023, 12(4): 1083-1101. doi: 10.3934/eect.2023001

3.Final state observability in Banach spaces with applicatiEECT-Evolution Equations and Control Theoty. The Content of volume 12,
nr 4 , August 2023.

1.Decay estimates for a perturbed two-terms space-time fractional
diffusive problem, Marcello D'Abbicco and Giovanni Girardi

2. Partial approximate controllability results for fractional order
stochastic evolution equations using approximation method, Renu

3.Final state observability in Banach spaces with applications to
subordination and semigroups induced by Levy processes, Dennis
Gallaun, Jan Meichsner and Christian Seifert

4.A new class of small initial data which may shift the critical power
and lifespan estimates for the classical damped wave equations,
Kazumasa Fujiwara and Vladimir Georgiev

5.Boundedness in a flux-limited chemotaxis-haptotaxis model with
nonlinear diffusion, Hui Wang, Pan Zheng and Runlin Hu

6.A coupled problem described by time-dependent subdifferential
operator and non-convex perturbed sweeping process, Soumia Saidi and
Aya Bouabsa

7.Cone-bounded feedback laws for linear second order
systems,Abdellaziz Binid, Ahmat Mahamat Taboye and Mohamed Laabissi

Approximate controllability for a class of instantaneous and non-
instantaneous impulsive semilinear system with finite time delay,
Yunhao Chu and Yansheng Liu

Passivity, port-hamiltonian formulation and solution estimates for a
coupled magneto-quasistatic system, Timo Reis and Tatjana Stykel

On Bochner's almost-periodicity criterion, Philippe Cieutat
ons to
subordination and semigroups induced by Lévy processes
Dennis Gallaun, Jan Meichsner and Christian Seifert
2023, 12(4): 1102-1121. doi: 10.3934/eect.2023002

4.A new class of small initial data which may shift the critical power and
lifespan estimates for the classical damped wave equations
Kazumasa Fujiwara and Vladimir Georgiev
2023, 12(4): 1122-1132. doi: 10.3934/eect.2023003

5.Boundedness in a flux-limited chemotaxis-haptotaxis model with
nonlinear diffusion
Hui Wang, Pan Zheng and Runlin Hu
2023, 12(4): 1133-1144. doi: 10.3934/eect.2023004

6.A coupled problem described by time-dependent subdifferential
operator and non-convex perturbed sweeping process
Soumia Saïdi and Aya Bouabsa
2023, 12(4): 1145-1173. doi: 10.3934/eect.2023005

7.Cone-bounded feedback laws for linear second order systems
Abdellaziz Binid, Ahmat Mahamat Taboye and Mohamed Laabissi
2023, 12(4): 1174-1192. doi: 10.3934/eect.2023006

Approximate controllability for a class of instantaneous and non-
instantaneous impulsive semilinear system with finite time delay
Yunhao Chu and Yansheng Liu
2023, 12(4): 1193-1207. doi: 10.3934/eect.2023007

Passivity, port-hamiltonian formulation and solution estimates for a
coupled magneto-quasistatic system
Timo Reis and Tatjana Stykel
2023, 12(4): 1208-1232. doi: 10.3934/eect.2023008

On Bochner's almost-periodicity criterion
Philippe Cieutat
2023, 12(4): 1233-1246. doi: 10.3934/eect.2023009

From: Badih Ghusayni
Date: April 01, 2023
Subject: Contents, Intl J Mathematics and Computer Science, , 18 (3)

The papers below can be downloaded freely by clicking on

Apisit Pakapongpun, Bunthita Chattae, Co-cobalancing numbers and
Balancing numbers

Hassan Rashed Yassein, Huda Abdulateef Ali, SQNTRU: New Public Key

Monchaya Chiangpradit, Chawalit Boonpok, Properties of (Lambda,p)
-submaximal spaces

Butsakorn Kong-ied, Chawalit Boonpok, Characterizations of (Lambda,p)
-extremally disconnected spaces

Rasha Khudhur Abbas, Jehad Ramadan Kider, The a-fuzzy normed algebra
and its basic properties

Rizky Rosjanuardi, Ideal Structure of Kumjian-Pask Algebras

Saithip Limtrakul, Jeerayut Wetweerapong, Artificial neural network
optimization using differential evolution algorithm with adaptive
weight bound adjustment for pattern classification

Maha Ammar Mustafa, Lemya Abd Alameer Hadi, Asma Abdulelah
Abdulrahman, New algorithm based on deep learning for number

Ruqaya Shaker Mahmood, Iden Hasan Hussein, Manal Naji Al-Harere,
Estimation of the fuzzy parameters for Exponential-Rayleigh
Distribution by using a nonlinear Ranking function

Nurul Amiera Sakinah Abdul Jamal, Muhammad Rezal Kamel Ariffin,
Kamilah Abdullah, Novel Forgery Mechanisms in Multivariate Signature

Dlal Bashir, Hailiza Kamarulhaili, Olayiwola Babarinsa, Some New
Results on Hourglass Matrices

Jose Maria L. Escaner IV, Jemar E. Laag, Daryl Allen B. Saddi, Matrix
Representation of Martingale Measures with Quantized Marginals

William S. Gayo, Jr., Jerico B. Bacani, On the Solutions of Some
Mersenne Prime-Involved Diophantine Equations

Mamika Ujianita Romdhini, Athirah Nawawi, Degree Subtraction Energy of
Commuting and Non-Commuting Graphs for Dihedral Groups

Mark Anthony C. Tolentino, Gerone Russel J. Eugenio, The set chromatic
numbers of the middle graph of tree families

Nongluk Viriyapong, Chokchai Viriyapong, On the Diophantine equation

Chokchai Viriyapong, Nongluk Viriyapong, On the Diophantine equation
a^x+(a+2)^y=z^2 , where a is equivalent to 5 mod 21

Sudarat Nidsunkid, Peang-or Yeesa, The Performance of Multivariate
Exponentially Weighted Moving Average Control Chart Based on
Regression Adjustment when the Multivariate Normality Assumption is

Pronsuda Kongkam, Kanint Teerapaolarn, A non-uniform bound on Poisson
approximation for a sum of independent non-negative integer-valued
random variables at transfer in the magnetohydrodynamic

Edwin Zarrazola, Raul Alejandro Moran-Vasquez, Daya K. Nagar,
Percentage Points For Testing Two-Sample Compound Symmetry

Luay A. Alswidi, Hayder Kadhim Zghair, Dheargham Ali Abdulsada,
Irresolvability Ideal Module

End of Digest