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NA Digest Friday, October 31, 2025 Volume 25 : Issue 44

Today's Editor:

  Alex Townsend
  Cornell University
  townsend@cornell.edu

Today's Topics:

2025 Langtangen Prize
Invitation to an Asia-USA Seminar – Nov. 4 (USA) | Nov. 5 (Asia)
Call for submissions, -NASCA26, Kalamata, Greece 09--12 June 2026
Saint Girons V Conference 29 June - 3 July 2026
GAMM ANLA Annual Workshop, Sept, 2026, Magdeburg (Germany)
PhD position in Numerical Analysis, fully funded, University of Leeds, UK
PhD position at Imperial College London
PhD Position in Robust Bilevel Optimization at UTN, Germany
Research Associate Positions, Michigan State Univ, USA
Postdoctoral Researchers – Collaborative Team (RPI, UMassD, VT) in ROM and SciML for Kinetic Equations
Postdoc position, Oden Institute O'Donnell Postdoctoral Fellowship
Contents, AIMS New Volume: NACO Vol. 16
Contents, AIMS New Volume: IPI Vol. 20
Contents, AIMS New Article: JMD Vol. 21, Art. 14

See this issue of NA Digest on the web at:
  https://na-digest.coecis.cornell.edu/na-digest-html/25/v25n44.html

Submissions, FAQs, and archives:
  https://na-digest.coecis.cornell.edu/

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From: Patrick Farrell patrick.farrell@maths.ox.ac.uk
Date: October 27, 2025
Subject: 2025 Langtangen Prize

The 2025 Langtangen Prize has been awarded to

Marshall Davey, Charles Puelz, Simone Rossi, Margaret Anne Smith,
David R. Wells, Gregory Sturgeon, W. Paul Segars, John P. Vavalle,
Charles S. Peskin, and Boyce E. Griffith
Simulating cardiac fluid dynamics in the human heart
PNAS Nexus
https://doi.org/10.1093/pnasnexus/pgae392
for the development of mathematical models of the heart that reproduce
complex physiological phenomena

and

Brendan Keith and Thomas M. Surowiec
Proximal Galerkin: a structure-preserving finite element method for
pointwise bound constraints
Foundations of Computational Mathematics
https://doi.org/10.1007/s10208-024-09681-8
for the development of a radically new approach to the numerical
solution of variational inequalities.

The Langtangen Prize, named for Hans-Petter Langtangen (1962-2016), is
awarded annually to an outstanding paper or papers on the foundations
of numerical simulation technology published in the previous calendar
year. It is funded by the Ridgway Scott Foundation and the authors of
each paper receive a cash award of $3000.

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From: Yue Yu yuy214@lehigh.edu
Date: October 30, 2025
Subject: Invitation to an Asia-USA Seminar – Nov. 4 (USA) | Nov. 5 (Asia)

Dear Colleagues,

We would like to invite you to the Asia-USA seminar series hosted by the
USACM Technical Thrust Area on Mathematical Methods in Computational
Engineering & Sciences (Math Methods TTA), which will feature one speaker
from Asia and one from the USA. Details of the seminar are as follows:
Time: Tuesday, 11/4, 8–9 PM New York (EST) | Wednesday, 11/5, 9–10 AM Hong Kong (HKT)
Presentation 1: “Physics and modeling of hypersonic wall-bounded turbulent
flows” by Dr. Lin Fu (Hong Kong University of Science and Technology)
Presentation 2: “Differentiable Physics: A physics-constrained and data-driven
paradigm for scientific machine learning” by Dr. Romit Maulik (Pennsylvania
State University)

For further presentation details and upcoming seminars, please check the Math
Methods TTA webpage:
https://www.usacm.org/site_page.cfm?pk_association_webpage_menu=11354&pk_association_webpage=25781

Join via Zoom: (Meeting ID: 895 3995 6799; Passcode: 242578):
https://us06web.zoom.us/j/89539956799?pwd=BTTnLKm6F28rRrcbTvBUkywQGfpgb2.1

Sincerely,
Gianmarco Mengaldo, National University of Singapore (main organizer)
Pablo Seleson, Oak Ridge National Laboratory
Yue Yu, Lehigh University
Guglielmo Scovazzi, Duke University
Aditya Kumar, Georgia Institute of Technology

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From: Jbilou jbilou@univ-littoral.fr
Date: October 27, 2025
Subject: Call for submissions, -NASCA26, Kalamata, Greece 09--12 June 2026

Dear Colleagues,
We are pleased to announce that the International Conference :
« Numerical Analysis and Scientific Computation with Applications » will take
place in Kalamata, Greece from 09–12 June 2026. Full details about the
conference can be found at:

https://nasca26.org

Abstract Submission:
We welcome contributions that cover a broad range of topics related to the
topics of the conference. Submissions will be reviewed by the scientific
committee, and accepted abstracts will be featured in the conference program.

Minisymposium Proposals:
In addition to individual abstract submissions, we invite proposals for themed
minisymposia. These sessions should bring together experts to explore specific
topics in depth. If you are interested in organizing a minisymposium, we
encourage you to submit a proposal through the conference portal.

Detailed instructions for both abstract submissions and minisymposium
proposals can be found on the conference website.

We are delighted to confirm the following distinguished plenary speakers:

Stefano Serra Capizzano, Italy
Marco Donatelli, Italy
Stelios Georgiou, Australia
Marcos Raydan, Portugal
Lothar Reichel, USA
Yousef Saad, USA
Hassane Sadok, France

We look forward to your participation and contributions to an exciting and
engaging meeting.

With best wishes,
Khalide Jbilou
(on behalf of the Organising Committee)

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From: Iain Duff iain.duff@stfc.ac.uk
Date: October 31, 2025
Subject: Saint Girons V Conference 29 June - 3 July 2026

Saint-Girons Conference V

The fifth conference in the Saint-Girons series will be held in Saint-Girons,
Ariège, France. It will start with a welcome reception in the
evening of Tuesday 29th June and continue until the afternoon of
Friday 3rd July although we anticipate that several participants may wish
to remain in Saint Girons over the weekend to continue enjoying the
ambiance of this beautiful and friendly village.

As in previous meetings, there will be a strong emphasis on numerical linear
and multi-linear algebra and optimisation including HPC and of course sparse
matrices although we welcome talks on emerging topics at the interface
between HPC and AI or quantum computing.

We continue to update the information about the meeting on our website:
www.saintgironsconference.eu. So keep checking this for updates of our
progress.

We will add registration details to the website early next year together with
a call for talks.

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From: Eda Oktay oktay@mpi-magdeburg.mpg.de
Date: October 28, 2025
Subject: GAMM ANLA Annual Workshop, Sept, 2026, Magdeburg (Germany)

SAVE THE DATE:

26th Annual Workshop of the GAMM Activity Group on Applied Numerical
Linear Algebra (ANLA) will be held on September 3-4, 2026 in Magdeburg
Germany.

This workshop focuses on recent advances in numerical linear algebra
methods and their use in applied mathematics, physics, engineering and
data science. We welcome contributions on topics including but not
limited to:

- eigenvalue problems,
- matrix functions,
- linear systems,
- least squares problems,
- tensor methods,
- inverse problems, and
- optimization.

Further information, including plenary speakers, will be available soon:
https://indico3.mpi-magdeburg.mpg.de/event/58/

We highlight that the Workshop on Approximate Computing in (Multi-)
Linear Algebra will also be held in Magdeburg between August 31 and
September 2, 2026. We encourage you to save these dates, consider
joining the activity group, and participate in the meeting.

We hope to see you in Magdeburg!

On behalf of the organizing committee

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From: Massimiliano Fasi m.fasi@leeds.ac.uk
Date: October 26, 2025
Subject: PhD position in Numerical Analysis, fully funded, University of Leeds, UK

The Leeds Mathematical Software and Hardware Lab at the School of
Computer Science of the University of Leeds invites applications for a
fully funded PhD position in numerical analysis. The project aims to
design and analyze mixed-precision algorithms for solving large-scale
linear algebra problems on exascale architectures.

Applicants should have a strong background in numerical analysis,
scientific computing, or related fields. Programming experience in a
scientific context is desirable. The successful applicant will develop
expertise in numerical linear algebra and high-performance computing.

For further details and to apply, please visit:
https://phd.leeds.ac.uk/project/2310-mixed-precision-methods-for-numerical-
linear-algebra-at-exascale

The position is fully funded for eligible candidates, but alternative
funding may be available for others.

For informal inquiries—or if you would like to explore alternative
funding sources—please contact me at the email address above.

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From: Dimitrios Gourzoulidis d.gourzoulidis@imperial.ac.uk
Date: October 27, 2025
Subject: PhD position at Imperial College London

A fully funded PhD studentship is available in our group
under the 2025 Department of Chemical Engineering PhD
Scholarship scheme. Research will focus on one of two projects:

a) Data-driven modelling and prediction of complex systems.
Use neural ODEs and NNs to learn dynamics and solve
ODEs/PDEs/SDEs/SPDEs.

b) General hydrodynamics of observables.
Derive a generalised fluctuating dynamic density functional
theory (fluctuating DDFT) from first principles using projection
operators and maximum-entropy coarse-graining, recovering
fluctuating DDFT (FDDFT) for colloids and Landau–Lifshitz
fluctuating Navier–Stokes (FNS) equations for simple fluids.

For more info:
https://www.imperial.ac.uk/complex-multiscale-systems/positions/
Apply here:
https://www.imperial.ac.uk/chemical-engineering/courses/postgraduate

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From: Johannes Thürauf johannes.thuerauf@utn.de
Date: October 31, 2025
Subject: PhD Position in Robust Bilevel Optimization at UTN, Germany

PhD Position in Robust Bilevel Optimization at the University of Technology
Nuremberg (UTN) (Johannes Thürauf)

The Discrete Optimization Lab (Prof. Johannes Thürauf) is currently offering a
fully funded doctoral research opportunity (3 years, 100%, TV-L E13) as part of
the interdisciplinary project “Strategic Resilience for Future Energy Systems”.

The successful candidate will conduct research in bilevel and robust
optimization, with a particular focus on the emerging area of robust bilevel
optimization.

Applications will be reviewed on a rolling basis. To receive full consideration,
please apply by 9.12.2025. Applications received after that date may still be
considered.

For more details about the position and the application process, please see the
official advertisement:

Doctoral researcher (Ph.D.) positions at UTN with the topic of Bilevel and
Robust Optimization (m/f/d) under

https://www.utn.de/karriere/angebote-fuer-promovierende/

To learn more about the ongoing research in the lab, please visit my personal
website https://www.johannesthuerauf.com/ and the Discrete Optimization Lab
website
https://www.utn.de/en/departments/department-liberal-arts-and-
sciences/discrete-optimization-lab/

Please feel free to share this announcement with any student who may be
interested. If you have any questions regarding the position, please do not
hesitate to contact me at johannes.thuerauf@utn.de

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From: Guowei Wei weig@msu.edu
Date: October 28, 2025
Subject: Research Associate Positions, Michigan State Univ, USA

The Department of Mathematics at Michigan State University invites
applications for Mathematical AI and Computational Biosciences.

Applicants must submit their application materials for the
posting on Mathjobs.org at https://www.mathjobs.org/jobs/list/26886.

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From: Yanlai Chen yanlai.chen@umassd.edu
Date: October 25, 2025
Subject: Postdoctoral Researchers – Collaborative Team (RPI, UMassD, VT) in ROM and SciML for Kinetic Equations

We are seeking three Postdoctoral Research Associates to form a new,
collaborative research group spanning Rensselaer Polytechnic Institute (RPI),
the University of Massachusetts Dartmouth (UMassD), and Virginia Tech (VT).

This is a unique, team-based opportunity. The three fellows will work together
as a single cohort, focusing on the development and analysis of reduced-order
models (ROMs) and scientific machine learning (SciML) techniques for complex
kinetic equations arising from plasma physics and radiation/neutron transport.
A key feature of this program is its collaborative mentorship. The group will
receive joint supervision from all three principal investigators. While the
postdocs will collaborate weekly as a team, each PI will also serve as the
primary, local mentor at the postdoc's home institution. All positions include an
initial appointment of one year, renewable for one or two additional years
pending satisfactory performance.

Required Qualifications:
A Ph.D. (or expected Ph.D. prior to the start date) in Applied Mathematics,
Mathematics, or a closely related discipline.
A strong background in scientific computing and numerical analysis.
Demonstrated experience in the implementation of numerical methods.

Preferred Qualifications: Preference will be given to candidates with interest
and experience in one or more of the following:
Numerical methods for hyperbolic and/or kinetic equations
Complexity reduction techniques (e.g., ROMs)
Scientific machine learning (SciML)

Positions are open immediately. Evaluation of applications will begin
immediately and be conducted on a rolling basis until all positions are filled.
Inquiries are welcome and should be sent directly to Dr. Fengyan Li
(lif@rpi.edu), Dr. Yanlai Chen (Yanlai.chen@umassd.edu), or Dr. Yingda Cheng
(yingda@vt.edu).

To apply, please visit the link for the institution you are interested in:
To Apply for the RPI position: www.mathjobs.org/jobs/list/27402
To Apply for the UMassD position: https://careers.umassd.edu/en-
us/job/528645/post-doctoral-research-associate-research-
innovationmathematics
To Apply for the VT position: https://careers.pageuppeople.com/968/cw/en-
us/job/534113/postdoctoral-associate

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From: Kelly Tagle kelly.tagle@oden.utexas.edu
Date: October 27, 2025
Subject: Postdoc position, Oden Institute O'Donnell Postdoctoral Fellowship

Application Deadline: December 1, 2025

Postdoctoral researchers are vital to the Oden Institute's world-renowned work
in interdisciplinary education and research. Each year the Institute seeks
outstanding researchers trained at the interfaces of computer science,
mathematics, statistics, high-performance computing, and applications across
science, engineering, and medicine for the prestigious Peter O’Donnell, Jr.,
Postdoctoral Fellowship.

O’Donnell Fellows perform interdisciplinary research with exceptional faculty in
areas such as computational mechanics and computational oncology, among
many others. They also have the opportunity to participate in external
collaborations and access world-class computational tools at the Texas
Advanced Computing Center, including the fastest supercomputer on a
university campus.

Depending on the particular circumstances (research area, research advisor,
and Oden Institute center/group of affiliation), there may be opportunities for
Peter O'Donnell, Jr. Postdoctoral Fellows to participate in exchange programs
and strategic partnerships with other institutions, including:

- MD Anderson Cancer Center
- The Alan Turing Institute
- Select European universities

Application information and form are here:
https://www.oden.utexas.edu/programs-and-awards/odonnell-jr-postdoc-
fellowship/

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From: Charley Denton cdenton@aimsciences.org
Date: October 28, 2025
Subject: Contents, AIMS New Volume: NACO Vol. 16

Numerical Algebra, Control and Optimization
Volume: 16
March 2026
https://www.aimsciences.org/naco/article/2026/16/0

Preface: Recent advances in polynomial optimization theory and methods
Didier Henrion, Monique Laurent, Victor Magron, Jiawang Nie and Edouard
Pauwels

The Christoffel function: Applications, connections and extensions
Jean B. Lasserre

Moment-SOS hierarchy and exit location of stochastic processes
Didier Henrion, Mauricio Junca and Mauricio Velasco

On the hardness of deciding the finite convergence of Lasserre hierarchies
Luis Felipe Vargas

Nonconvergence of a sum-of-squares hierarchy for global polynomial
optimization based on push-forward measures
Lucas Slot and Manuel Wiedmer

A polynomial optimization framework for polynomial quasi-variational
inequalities with Moment-SOS relaxations
Xindong Tang, Min Zhang and Wenzhi Zhong

Read more articles:
https://www.aimsciences.org/naco/article/2026/16/0

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From: Charley Denton cdenton@aimsciences.org
Date: October 28, 2025
Subject: Contents, AIMS New Volume: IPI Vol. 20

Inverse Problems and Imaging
Volume: 20
February 2026
https://www.aimsciences.org/ipi/article/2026/20/0

Landweber–Kaczmarz method for inverse problems using multiple repeated
measurements
Nan Yu, Yuxin Xia, Zhenwu Fu and Yong Chen

On the optimal choice of the illumination function in photoacoustic tomography
Phuoc-Truong Huynh and Barbara Kaltenbacher

A statistical framework and analysis for perfect radar pulse compression
Neil K. Chada, Petteri Piiroinen and Lassi Roininen

Fast partial Fourier transforms for large-scale ptychography
Ricardo Parada, Samy Wu Fung and Stanley Osher

Asymptotic approaches in inverse problems for depolymerization estimation
Marie Doumic and Philippe Moireau

Efficient algorithms for mixed noise removal via nonlocal low-rank regularization
Ashley Prater-Bennette, Minghao Rostami, Lixin Shen, Erin E. Tripp and Jiangyu Yu

Regularization within two-parameters for identification heat-coefficient in the
parabolic equation
Luis Eduardo Olivar Robayo and Héctor Andrés Granada Díaz

Read more articles:
https://www.aimsciences.org/ipi/article/2026/20/0

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From: Charley Denton cdenton@aimsciences.org
Date: October 30, 2025
Subject: Contents, AIMS New Article: JMD Vol. 21, Art. 14

Journal of Modern Dynamics
Volume: 21, Art. 14
2025
https://www.aimsciences.org/jmd/article/2025/21/0

Mean ergodic theorems in Lr(μ) and Hr(T), 0 < r < 1
El Houcein El Abdalaoui and Michael Lin

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End of Digest
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