Today's Editor:
Alex Townsend
Cornell University
townsend@cornell.edu
Today's Topics:
Passing of Lloyd Fosdick
More on ODEs with Holder continuous right sides
8th Spring School on Lattice Boltzmann Methods with OpenLB and ProLB Software Lab in Marseille (France)
Call for submissions, 29th International Conference on Domain Decomposition Methods, Jun 2025
EUROPT 2025: 2nd call with opening for new streams
Kansas Women in Math Symposium, April 2025
Workshop on Approximate Computing in NLA, France, Oct 2025
Workshop: Computational Techniques and Imaging Innovations in the Age of AI, UCL, 1-2 April 2025
PhD position in Simulation, Optimization or ML for PDEs
PhD positions at at Chalmers University of Technology and the University of Gothenburg, Sweden
Postdoc Position in Numerical Modeling of Solidification at EPFL
Postdoc position at KU Leuven: Towards a Modular Vehicle Routing Solver framework
Two postdoc positions in NA of high-frequency waves at University of Bath
Contents, AIMS new journal issue: FoDS 7-2
See this issue of NA Digest on the web at:
https://na-digest.coecis.cornell.edu/na-digest-html/25/v25n4.html
Submissions, FAQs, and archives:
https://na-digest.coecis.cornell.edu/
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From: Bobby Schnabel Robert.Schnabel@colorado.edu
Date: January 21, 2025
Subject: Passing of Lloyd Fosdick
Lloyd Fosdick, a pioneer in the early days of computing, the founding
chair of the Department of Computer Science at the University of
Colorado Boulder, and a significant contributor to scientific
computing education and research, passed away recently in Colorado at
age 96. Lloyd enjoyed relatively good health until he passed in the
company of family and long-time friends. He is survived by his son
Aaron, sister Sallie, and granddaughters Leya and Juliette.
Lloyd earned his BS in Mathematics from the University of Chicago in
1949 and his PhD in Physics from Purdue in 1953. From there, he moved
to the University of Illinois’ Control Systems Laboratory where his
work included writing software for the pioneering ILLIAC computer. He
held faculty appointments in Mathematics, Physics, and later Computer
Science at Illinois, before moving to the University of Colorado
Boulder as founding chair of Computer Science in 1970. Lloyd served
as chair from 1970-78 and 1985-90 and played a huge role in building
the department. In 1996, he co-authored Introduction to
High-Performance Scientific Computing with Liz Jessup, Carolyn
Schauble, and Gitta Domik, a textbook supporting the first
undergraduate courses in that field. Lloyd retired in 1993 and in
1995 was awarded a Fulbright fellowship to Turkey where he stayed and
worked until 1999.
Beyond his academic contributions, we will remember Lloyd as a humble,
honorable person, an avid outdoorsman and cyclist, a long-time friend,
and an excellent example of a life well lived.
Richard Byrd, Liz Jessup, and Bobby Schnabel
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From: Tim Kelley ctk@ncsu.edu
Date: January 17, 2025
Subject: More on ODEs with Holder continuous right sides
My original post lacked an important detail. Sorry to have to try again.
My problem is a gradient flow
y' = - grad(y), y(0) = y_0
where grad(y) is Holder continuous with Holder exponent p in (0,1)
In this case I know there is a unique solution y(t) which is global in time and that
lim_{t \to \infty} y(t) = y^* , which is the unique minimizer of f.
I think I'm seeing O(h^p) convergence, but am not clear on how to prove that.
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From: Mathias J Krause mathias.krause@kit.edu
Date: January 18, 2025
Subject: 8th Spring School on Lattice Boltzmann Methods with OpenLB and ProLB Software Lab in Marseille (France)
Registration is now open for the 8th Spring School 2025 on Lattice Boltzmann Methods with OpenLB and ProLB Software Lab that will be held in Marseille/France form 19.05.2025 – 23.05.2025.
The spring school introduces scientists and applicants from industry to the theory of LBM and trains them on practical problems. The first half of the week is dedicated to the theoretical fundamentals of LBM up to ongoing research on selected topics. Followed by mentored training on case studies using OpenLB or ProLB in the second half, where the participants gain deep insights into LBM and its applications. This educational concept is probably unique in the LBM community and offers a comprehensive and personal guided approach to LBM. Participants also benefit from the knowledge exchange during poster session, coffee breaks and the excursion. We look forward to your participation.
For more details and registration, visit https://www.openlb.net/spring-school-2025/.
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From: Michele Botti michele.botti@polimi.it
Date: January 22, 2025
Subject: Call for submissions, 29th International Conference on Domain Decomposition Methods, Jun 2025
Dear colleagues,
The 29th edition of the International Conference on Domain Decomposition
Methods will be held in Milano, hosted by Politecnico di Milano on June 22-27,
2025, see https://www.dd29.polimi.it/.
The purpose of the conference is to discuss recent developments in domain
decomposition methods, bringing together mathematicians, computational
scientists, and engineers working on numerical analysis, high-performance
computing, and machine learning with industrial and societal applications.
The following Plenary Speakers have now been confirmed:
Santiago Badia, Monash University
Erin Carson, Charles University
Stéphanie Chaillat, CNRS – Laboratoire POems
Björn Engquist, University of Texas Austin
Patrick Farrell, University of Oxford
Marlis Hochbruck, Karlsruhe Institute of Technology
Pierre Jolivet, Sorbonne Université, CNRS, LIP6
Alena Kopanicakova, University of Toulouse
Jan Mandel, University of Colorado
Ilario Mazzieri, Politecnico di Milano
Nicole Spillane, CNRS – Ecole polytechnique
Xiaowen Xu, Beijing Institute Applied Physics and Computational Mathematics
We invite you to contribute to the DD29 conference by submitting a proposal to
organize a minisymposium (deadline 31-03-2025), submitting a contributed
talk (deadline 30-04-2025), or a poster presentation (deadline 30-04-2025)
https://www.dd29.polimi.it/submissions/.
Guidelines for the registration to the conference as well as further information
on DD29 may be found on the congress website. Should you require more
information, please do not hesitate to contact the conference secretariat at
dd29-dmat@polimi.it.
Best regards,
The local organizing committee
P.F. Antonietti, L. Beirao da Veiga, S. Bertoluzza, M. Botti, C. Canuto, G.
Ciaramella, P. Gervasio, L. Pavarino, A. Quarteroni, S. Scacchi, C. Vergara
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From: Giancarlo Bigi giancarlo.bigi@unipi.it
Date: January 22, 2025
Subject: EUROPT 2025: 2nd call with opening for new streams
Dear Colleagues,
EUROPT 2025 - the 22nd EUROPT Conference on Advances in Continuous
Optimization
taking place in Southampton, UK, from 29th June to 2nd July (the 5th EUROPT
Summer School will be held at the same location, just before the conference:
27th and 28th of June).
The streams confirmed so far can be found on the the conference website:
https://europt2025.org/
If you wish to contribute an invited session (3 to 4 talks on a specific topic) or
an individual talk to any of the streams, please do not hesitate to contact the
stream organisers.
You are also welcome to organize a new stream on a topic complementary to
the current list. For new streams, please contact the conference team directly
at europt2025@soton.ac.uk.
Best wishes,
EUROPT 2025 Co-chairs
Selin Ahipasaoglu, Alain Zemkoho, Giancarlo Bigi
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From: Yuan Liu yuan.liu@wichita.edu
Date: January 17, 2025
Subject: Kansas Women in Math Symposium, April 2025
I am happy to announce that together with Mai Dao, Yueh-Ju Lin, and Catherine
Searle, we are organizing the Kansas Women in Math Symposium 2025. It will
be held at Wichita State University on April 26-27, 2025.
The symposium will feature two keynote talks, 10 invited talks in two parallel
sessions - one in Pure Math and one in Applied Math/Statistics, a panel
discussion, and a poster session.
Detailed information can be found below. Please feel free to forward this email
to anyone who might be interested in this event.
KEYNOTE SPEAKERS:
Irina Mitrea (Temple University)
Xuemin Tu (University of Kansas)
INVITED SPEAKERS:
Ariel Barton (University of Arkansas)
Isabel Beach (University of Toronto)
Aleyah Dawkins (Carnegie Mellon)
Huijing Du (University of Nebraska-Lincoln)
Cristina Garcia-Cardona (Los Alamos National Lab)
Neda Mohammadi Jouzdani (North Carolina A&T State University)
Jingru Mu (Kansas State University)
Oanh Nguyen (Brown University)
Kaitlin Tademy (Harvey Mudd College)
Angela Wu (Bucknell University)
WEBSITE:
https://sites.google.com/view/kwim2025
FUNDING:
NSF funding is available to support the participation of undergraduate and
graduate students, postdocs, and those without other sources of support.
Members of under-represented groups are especially encouraged to apply.
Funding requests can be made on the registration page. The deadline for full
consideration for funding is February 15, 2025.
REGISTRATION:
Registration is free and available now at the above website. In order to help us
with planning, please register early even if you are not applying for funding.
CONTRIBUTED POSTERS:
If you are interested in presenting a poster, please make your request by March
15, 2025, for full consideration. Requests to contribute a poster can be made
on the registration page.
We hope to see you in April!
Best,
Yuan Liu
on behalf of the organizers
Mai Dao, Yueh-Ju Lin, Yuan Liu, and Catherine Searle
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From: Theo Mary theo.mary@lip6.fr
Date: January 22, 2025
Subject: Workshop on Approximate Computing in NLA, France, Oct 2025
We are pleased to announce a workshop on Approximate Computing in Numerical Linear Algebra, held at Sorbonne University (Paris, France) on October 8-10, 2025.
The goal of the workshop is to gather experts on approximate numerical linear algebra algorithms, their analysis, implementation on modern hardware, and use in applications. This includes topics such as low-rank approximations, reduced and mixed precision algorithms, randomized algorithms, communication avoiding algorithms, sparse and data sparse matrix algorithms, etc.
We are currently calling for talk submissions: participants who wish to present should send a title and abstract for their proposed contribution by email at
approxcomputing@sciencesconf.org
before May 18, 2025. Please also indicate whether you would prefer a regular talk or a poster presentation.
Further information, including a tentative list of speakers, is available here:
https://approxcomputing.sciencesconf.org/
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From: Matthias Ehrhardt m.ehrhardt@bath.ac.uk
Date: January 20, 2025
Subject: Workshop: Computational Techniques and Imaging Innovations in the Age of AI, UCL, 1-2 April 2025
We are pleased to announce the workshop on "Computational Techniques and
Imaging Innovations in the Age of AI" held at UCL on 1-2 April 2025. The
workshop aims to explore the intersection of inverse problems and machine
learning, highlighting the critical interplay between classical approaches and
modern AI techniques. Topics will include linear and non-linear imaging,
Bayesian inversion, mathematics of deep learning, data assimilation, and
generative models. This integration is crucial for developing fast, accurate, and
reliable solutions to contemporary challenges in theory and applications.
This workshop also celebrates the 65th birthday of Prof. Simon Arridge, a
leading figure in the international inverse problems community. His pioneering
efforts in linking inverse problems with machine learning make this event a
fitting tribute to his contributions and ongoing influence in the field.
Confirmed speakers are:
David Barber
Teresa Correia
Ben Cox
Cosimo D'Andrea
Marc Deisenroth
Lior Horesh
Bangti Jin
Bill Lionheart
Peter Maaß
Ronny Ramlau
Carola-Bibiane Schönlieb
John Schotland
Tanja Tarvainen
Kris Thielemans
While the workshop is free to attend, it is mandatory to register in advance to
help us plan for the event. We invite early-career researchers to submit an
abstract for a poster. Please visit https://ctiai.github.io/ to find out more about
the conference and registration.
Best wishes
Matthias
(on behalf of the organisers: Martin Benning, Marta Betcke, Matthias Ehrhardt,
Zeljko Kereta)
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From: Thomas Slawig thomas.slawig@email.uni-kiel.de
Date: January 20, 2025
Subject: PhD position in Simulation, Optimization or ML for PDEs
The research group Algorithmic Optimal Control - CO2 Uptake of the Ocean
in the Dep. of Computer Science at Kiel University offers a full-time PhD
position, starting in April for three and a half years, classified in German pay
group 13 TV-L.
We deal with simulation, optimization and control of systems described by
partial differential equations. These are mainly used in climate research. We are
also particularly interested in the application of machine learning and AI
methods to such systems, e.g. with physically-informed neural networks
(PINNs).
Prerequisites are
• A university degree in mathematics, computer science or a related subject
• Good programming skills in a higher programming language
• Good written and spoken English language skills.
Beneficial are knowledge and experience in one or more of the following fields:
• Numerics of partial differential equations
• Simulation software on high-performance computers
• Methods and software environments of machine learning
For further details see https://www.uni-kiel.de/personal/de/stellen/extern/wiss
or mail to thomas.slawig@email.uni-kiel.de.
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From: Andrii Dmytryshyn andrii@chalmers.se
Date: January 21, 2025
Subject: PhD positions at at Chalmers University of Technology and the University of Gothenburg, Sweden
The Department of Mathematical Sciences at Chalmers University of
Technology and the University of Gothenburg invites applications for PhD
positions in various fields of mathematics, including Numerical Linear Algebra:
https://www.chalmers.se/en/about-chalmers/work-with-us/vacancies/?
rmpage=job&rmjob=13487&rmlang=UK
You can also explore the full list of open positions here:
https://web103.reachmee.com/ext/I003/304/job?
site=5&lang=UK&validator=a72aeedd63ec10de71e46f8d91d0d57c&job_id=13
501
Application deadline: February 24, 2025.
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From: Tyler Benkley tyler.benkley@epfl.ch
Date: January 20, 2025
Subject: Postdoc Position in Numerical Modeling of Solidification at EPFL
The Laboratory of Mechanical Metallurgy based at EPFL in Lausanne, Switzerland is searching for a postdoctoral researcher specialized in numerical modeling of solidification of metal alloys. The aim of the project is to model an additive manufacturing process involving a static magnetic field currently under development within our laboratory, and to couple the software with free surface magnetohydrodynamics simulations.
More details may be found at the following link:
https://careers.epfl.ch/job/Lausanne-Postdoctoral-Research-Position-at-the-Laboratory-of-Mechanical-Metallurgy/940219174/
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From: Ward Melis ward.melis@kuleuven.be
Date: January 23, 2025
Subject: Postdoc position at KU Leuven: Towards a Modular Vehicle Routing Solver framework
NUMA (KU Leuven) is searching a postdoctoral researcher with proven
experience in both software development and vehicle routing research.
BAP-2025-45 Postdoc position: Towards a Modular Vehicle Routing Solver
framework
All information is available at:
https://www.kuleuven.be/personeel/jobsite/jobs/60430428
The vacancy closes on 6 February 2025.
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From: Euan Spence e.a.spence@bath.ac.uk
Date: January 18, 2025
Subject: Two postdoc positions in NA of high-frequency waves at University of Bath
Two three-year postdoc positions at the University of Bath, working with Euan
Spence, on the numerical analysis of high-frequency wave problems.
https://www.bath.ac.uk/jobs/Vacancy.aspx?ref=ED12231
These are part of the European Research Council Synergy grant "Phase-space-
inspired Numerical Methods for High Frequency Wave Scattering"
https://psinumscat.com/
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From: Charley Denton cdenton@aimsciences.org
Date: January 22, 2025
Subject: Contents, AIMS new journal issue: FoDS 7-2
Foundations of Data Science
June 2025, Vol. 7, No. 2
https://www.aimsciences.org/FoDS/article/2025/7/2
Persistent sheaf Laplacians
Xiaoqi Wei and Guo-Wei Wei
Graph Matching via convex relaxation to the simplex
Ernesto Araya and Hemant Tyagi
On the limits of topological data analysis for statistical inference
Siddharth Vishwanath, Kenji Fukumizu, Satoshi Kuriki and Bharath K.
Sriperumbudur
Persistent homology with k-nearest-neighbor filtrations reveals topological
convergence of PageRank
Minh Quang Le and Dane Taylor
Tverberg's theorem and multi-class support vector machines
Pablo Soberón
Affine invariant ensemble transform methods to improve predictive uncertainty in
neural networks
Diksha Bhandari, Jakiw Pidstrigach and Sebastian Reich
Combinatorial topological models for phylogenetic networks and the mergegram
invariant
Paweł Dłotko, Jan Felix Senge and Anastasios Stefanou
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End of Digest
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