NA Digest, V. 21, # 10

NA Digest Sunday, March 21, 2021 Volume 21 : Issue 10

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: Michail Todorov
Date: March 20, 2021
Subject: AMiTaNS'21, Bulgaria or ONLNE, Jun 2021

The conference will be scheduled in plenary and keynote lectures
followed by special and contributed sessions. The accents of the
conference will be on Mathematical Physics, Solitons and Transport
Processes, Numerical Methods, Scientific Computing, Continuum
Mechanics, Applied Analysis, Applied Physics, Biomathematics, which
can be complemented by some specific topics in contributed special
sessions. You are welcomed to announce and organize special sessions
that should be within the general topic of the conference. This year
we intend to organize a session in honor of Prof. C.I. Christov
(1951-2012) 70th Birthday.

If you are interested in attending AMiTaNS'21 please prepare a short
abstract within 300 words clearly stating the goal, tools, fill out
the online Application form. The deadline for submissions is March 31,

Tentative speakers (so far): S. Markov (Bulgaria), A. Fedoseyev (USA),
M. Stehlik (Austria, Chile), A. Salupere (Estonia), A. Porubov
(Russia), P. Minev (Canada), R. Xu (China), V. Shaydurov (Russia),
I.C. Christov (USA), E. Charampidis (USA), etc.

Updates about the organization of the event subject of the pandemic
circumstances will be given continuously on the conference website.

From: Ruth Crane
Date: March 19, 2021
Subject: ICERM, Time-Dependent PDE Discretizations, USA, Jan 2022

This workshop aims to spur a holistic approach to the design of time-
dependent PDE discretizations, particularly in terms of developing
time integration techniques that are intertwined with spatial
discretization techniques, focusing on: generalized ImEx methods,
asymptotic- preserving and structure-preserving methods, methods that
exploit low- rank dynamics, analysis of order reduction, parallel in
time methods, and performant, maintainable, extensible software
implementations. This workshop runs from January 10 through January
14, 2022.

From: Martin Stoll
Date: March 15, 2021
Subject: Preconditioning, Germany, Jun 2022

The organizers of the Preconditioning2021 meeting have decided to
shift the meeting into 2022 and we would cordially invite you to mark
your calendars for Preconditioning 2022 in Chemnitz, Germany from June
8th to June 10th. This is the week prior to the Householder XXI in

We are happy to already announce a fantastic list of invite speakers
- Hartwig Anzt (KIT, Germany)
- Erin Carson (Charles University, Czech Republic)
- Eric Cyr (Sandia National Laboratories, USA)
- Selime Gurol (Cerfacs, France)
- John Pearson (University of Edinburgh, Scotland)
- Jennifer Scott ( University of Reading, United Kingdom)
- Rasmus Tamsdorf (Disney Research, USA)
- Yuanzhe Xi (Emory University, USA)

Further information can be found here

If you have any questions, contact Martin Stoll

From: Mingchao Cai
Date: March 18, 2021
Subject: Faculty Positions, Morgan State Univ, USA

Two tenure-track positions are available, one for Stat/Actuarial
Science, one for applied and computational math. If you are interested
in, please apply through

Hopefully, the deadline is Apr 15th. All application material and ref
letters should be submitted through the website. I am not in the
search committee. However, if you have any questions, I would be happy
to answer.

From: Tim Phillips
Date: March 19, 2021
Subject: Lectureship Position, Applied Mathematics, Cardiff Univ, UK

The School of Mathematics invites applications for a Lectureship in
Applied Mathematics. Applicants should have a record of, or potential
to produce, research that reaches the highest standards of excellence
in terms of originality, significance and rigour in Mathematics. The
successful candidate will be expected to deliver high-quality teaching
and to supervise MSc dissertations. They will join the Applied and
Computational Mathematics Research Group which has expertise in areas
including Theoretical and Fluid Dynamics; Mathematics and Mechanics of
Solids; Mathematical Biology; Applied Analysis; Numerical Analysis.

The School of Mathematics is a research-led School in Cardiff
University, one of the UK's leading universities, with a reputation
for internationally excellent research and high-quality teaching. In
the last Research Excellence Framework (REF) 2014, Cardiff University
was ranked 5th in the UK in terms of the grade point average (GPA) of
its overall quality profile and 2nd for Impact. This position is a full-time
position, 35 hours per week and is open ended. Salary range: 33,797 -
40,322 GBP per annum (Grade 6) The post is available from 1 May 2021
or a mutually agreed date thereafter. We particularly welcome
applications from females as they are under- represented with Cardiff
University in this field. Informal enquiries may be made to Professor
Tim Phillips ( or Dr Angela Mihai

Cardiff University is committed to supporting and promoting equality
and diversity and to creating an inclusive working environment. We
believe this can be achieved through attracting, developing, and
retaining a diverse range of staff from many different backgrounds who
have the ambition to create a University which seeks to fulfil our
social, cultural and economic obligation to Cardiff, Wales, and the
world. In supporting our employees to achieve a balance between their
work and their personal lives, we will also consider proposals for
flexible working or job share arrangements.

Closing date: Wednesday, 14 April 2021

Further details:

From: Steffen B=C3=B6rm
Date: March 17, 2021
Subject: Research Position, High-Performance Computing, Kiel Univ

The Department of Mathematics of Kiel University offers a full-time
permanent position (pay grade TV-L E14) for research and teaching in
the field of High-Performance Computing. Requirements for employment
are a Ph.D. degree in Mathematics or a closely related field,
experience in the administration of servers for high-performance
computing, particularly running Linux and standard packages like BLAS,
LAPACK, OpenCL/CUDA, and a strong background in numerical mathematics
and scientific computing, including having successfully taught courses
on these subjects, preferably in German.

Details can be found at

From: Michal Benes
Date: March 16, 2021
Subject: Postdoc Position, Czech Technical Univ in Prague

Postdoc position at Czech Technical University in Prague,
Faculty of Nuclear Sciences and Physical Engineering,
Department of Mathematics

Mathematical Modelling and Numerical Simulation of Flow, Transport and
Phase Transitions

Brief description:
Maximal duration: until December 31 2022
Beginning: upon personal preference
Funding: Ministry of Education of Czech Republic
Suitable for postdoc or early-career researchers

Contents: joint research work on mathematical and numerical modelling
of complex multiphysics phenomena with the Mathematical Modelling
Group of the Department of Mathematics

Any inquiries should be addressed to:
Professor Michal Benes:

This information is posted on:

From: Mathias J Krause
Date: March 15, 2021
Subject: PhD/Postdoc Postion, Simulation and Visualization, KIT

Research assistant wanted for our team Lattice Boltzmann Research
Group at KIT: Within the scope of a research project on simulation and
visualization (especially VR/AR and Apps) of flows, a full-time
position is to be filled temporarily. After familiarisation,
remuneration is paid according to TV-L, E 13. There is the possibility
of a doctorate.

Besides enjoying scientific problem analysis as well as mathematical
and/or process engineering problems and/or computer science, we expect
you to have good programming skills, initiative, imagination and good
communication skills in written and spoken English AND German. Great
importance is attached to working in a team.

Please send applications with the usual documents in a pdf file to .

From: Mengwu Guo
Date: March 18, 2021
Subject: PhD Position, Physics-Informed Machine Learning, Univ of Twente

We are calling for applications for a PhD position in the Applied
Analysis (AA) group at University of Twente (UT)'s Department of
Applied Mathematics to work in the area of physics-informed machine
learning. Research activities of this PhD position focus on the
synergistic integration of modern numerical methods for PDEs and
recent machine learning techniques, especially based on artificial
neural networks and Gaussian processes. The successful candidate will
develop physics- informed machine learning methods towards real-world
engineering and/or medical applications. Such research initiatives
address the drawbacks of conventional numerical methods and seek to
enable data- enhanced predictive modeling through model order
reduction, multi- fidelity data fusion, and machine learning.

We look for an enthusiastic individual who is driven by curiosity and
has: (i) or will shortly acquire, a master's degree in applied
Mathematics, computational science or engineering; (ii) knowledge in
machine learning and/or uncertainty quantification; (iii) experience
with numerical methods for solving PDEs; (iv) demonstrated programming
skills; and (v) good communication skills in a collaborative working
environment. In addition, knowledge in applied mechanics would be an
advantage. Working language at the University of Twente is
English. The successful candidate will be appointed on a full-time PhD
position for four years (a qualifier in the first year) with a
competitive salary and a full status of UT employee. Interested to be
part of our team? Your application should include: (i) an
application/motivation letter, emphasizing your specific interest,
qualifications and motivation to apply for this position; (ii) an
updated CV including a list of relevant courses during your master's
studies, research activities in which you have participated, and a
short description of your master's thesis; and (iii) contact
information (addresses and emails) of two referees. Please find more
details of this vacancy and submit your application at:!/2021-296/phd-position-

This open position is expected to be filled as soon as possible. You
are welcome to contact Dr. Mengwu Guo ( for further
information. We accept applications until May 21, 2021. Evaluation
will begin in early May and continue until the position is filled.

From: Hayato Ushijima-Mwesigwa
Date: March 18, 2021
Subject: Research Internship Position, Fujitsu Labs of America

Fujitsu Laboratories of America (FLA) has an internship opening for a
graduate-level student. The research will mainly involve large-scale
optimization problems, specifically on solving Vehicle Routing
Problems with constraints on special-purpose hardware.

FLA is the U.S. R&D arm of Fujitsu, the global information and
communications technologies leader headquartered in Japan.

A qualified candidate would possess, Research-level experience in at
least one of the following: Integer and Linear Programming;
Combinatorial Algorithm design; Linear Algebra, and familiarity with
different methods of solving large-scale VRP problems.

Students in M.S. and Ph.D. programs with relevant coursework or
research experience are invited to apply, and we are open to advanced
undergraduates who can demonstrate relevant experience.

If this sounds like something you'd be good at, please send a recent
CV to

From: Jichun Li
Date: March 20, 2021
Subject: CPF, RINAM Special Issue, Comp Methods for PDEs and Applications

The Guest Editors of Results in Applied Mathematics - RINAM are now
inviting original articles that reflect the recent advances in
numerical methods developed for solving various partial differential
equations (PDEs) and their applications in various areas of science
and engineering. Possible topics of interest include (but not limited
to): finite element methods, meshless methods, deep learning and
neural networks for PDEs, numerical analysis, optimal control of PDEs,
modeling of complex fluids, wave propagation in complex media,
interface problems, uncertainty quantification, etc.

RINAM is a gold open access journal and the Article Publishing Charge
(APC) will be waived for this special issue. Manuscripts should be
submitted online by registering and logging in to the Editorial
Manager site:

The deadline for submission for this special issue is July 31, 2021.

Important: When you submit your paper, please choose "RINAM Special"
from the dropdown menu to distinguish from other submissions
(otherwise it may end up in a regular issue and an APC fee charged).

All submitted papers will go through the normal review process. We
hope to be done with all reviews by Oct. 31, 2021. The special issue
is expected to be published in Nov. 2021 (to be confirmed later).

From: Yonghui Yu
Date: March 16, 2021
Subject: Contents, J Computational Mathematics, 39 (2)

Journal of Computational Mathematics, Volume 39 (2021), Issue 2


A New Adaptive Subspace Minimization Three-term Conjugate Gradient
Algorithm for Unconstrained Optimization, Keke Zhang, Hongwei Liu and
Zexian Liu

Can A Cubic Spline Curve Be G3, Wujie Liu and Xin Li

Stability Analysis of the Split-step Theta Method for Nonlinear
Regime- switching Jump Systems, Guangjie Li and Qigui Yang

Siege Accelerated Optimization with Orthogonality Constraints,
Jonathan W.

Quadrature Methods for Highly Oscillatory Singular Integrals, Jing
Gao, Marissa Condon, Arieh Iserles, Benjamin Gilvey and Jon Trevelyan

Local Gaussian collocation Scheme to Approximate the Solution of
Nonlinear Fractional Differential Equations Using Volterra Integral
Equations, Pouria Assari, Fatemeh Asadi-Mehregan and Mehdi Dehghan

Uniform Stability and Error Analysis for Some Discontinuous Galerkin
Methods, Qingguo Hong and Jinchao Xu

End of Digest