From bounce-5383402-88629717@mm.list.cornell.edu Fri Feb 20 08:13:45 2026 From: "Alex John Townsend" Subject: NA Digest, V. 26, # 8 Date: Fri, 20 Feb 2026 08:10:25 -0500 NA Digest Friday, February 20, 2026 Volume 26 : Issue 8 Today's Editor: Alex Townsend Cornell University townsend@cornell.edu Today's Topics: Beresford Parlett New book, Numerische Mathematik (Numerical Mathematics) New Book, Scientific Computing in Modern C++ by Victor Eijkhout Call for Minisymposia -- Wave-Ned 2026 | New Deadline: March 16, 2026 Call for abstracts (deadline March 1): C3SE-2026, Montréal, May 19-22, 2026 OPERA Conference, 22-26 June 2026, Stirling, Scotland, UK 5th IMA Conference on Inverse Problems from Theory to Application, 8-10 September 2026 New Conference, 39th Chemnitz Finite Element Symposium, 7-9 September 2026 PhD Fellowship in Computational Mathematics/Scientific Computing at Simula Research Lab, Norway PhD Position, Data Science and Knowledge Discovery, SimulaMet, Oslo, Norway PhD Position in Optimization and Optimal Transport, University of Twente PhD Research Fellowship at the University of Oslo Postdoctoral position at University of Sydney Assistant Professor in Mathematics/Information Technology, Uppsala University Contents, AIMS New Volume: CPAA Vol. 28 Contents, AIMS New Volume: EECT Vol. 19 Contents, AIMS New Article: FMF Vol. 8, Art. 2 Contents, AIMS New Article: JMD Vol. 22, Art. 1 Contents, AIMS New Article: MFC Vol. 12, Art. 1 Contents, AIMS New Volume: MFC Vol. 11 See this issue of NA Digest on the web at: https://na-digest.coecis.cornell.edu/na-digest-html/26/v26n8.html Submissions, FAQs, and archives: https://na-digest.coecis.cornell.edu/ ------------------------------------------------------- From: Joseph Grcar jfgrcar@gmail.com Date: February 13, 2026 Subject: Beresford Parlett Emeritus Professor Beresford Parlett of the University of California at Berkeley passed on February 7, 2026. He graduated from Oxford University and briefly worked in his father's lumber import firm before undertaking graduate studies at Stanford University under George Forsythe. His first and only employment was at Cal where he began in the nascent computer science department(s). Beresford was the personal link to the historical development of eigenvalue calculations. Although he will always be remembered for his book entitled The Symmetric Eigenvalue Problem, Beresford teased that it started as the unsymmetric problem, but that manuscript was unfortunately lost in the Oakland-Berkeley fire. He was a lively conversationalist who loved hiking in the California outdoors. ------------------------------------------------------- From: Martin Hermann martin.hermann@uni-jena.de Date: February 16, 2026 Subject: New book, Numerische Mathematik (Numerical Mathematics) At the beginning of this year, the fifth (German-language) edition of my two-volume textbook on numerical mathematics was published by Walter de Gruyter, Berlin/Boston. In both volumes, the majority of numerical methods are implemented as m-files for MATLAB. The software can be downloaded from the publisher's website. 1) Numerical Mathematics, Volume 1 (ISBN 978-3-11-220545-7): Systems of linear equations, eigenvalue problems, nonlinear equations, in German, 2) Numerical Mathematics, Volume 2 (ISBN 978-3-11-220555-6): Polynomial approximation, least squares problems, numerical differentiation and integration, initial and boundary value problems, in German. Prof. Dr. Martin Hermann Friedrich-Schiller University at Jena Mathematical Institute Email: martin.hermann@uni-jena.de ------------------------------------------------------- From: Mitchell Graham mgraham@siam.org Date: February 13, 2026 Subject: New Book, Scientific Computing in Modern C++ by Victor Eijkhout Scientific Computing in Modern C++ by Victor Eijkhout If you are an aspiring computer programmer with a basic knowledge of C++ and want to deepen your understanding of the language, specifically for use in scientific computing, this unique book is for you. It is the only book to discuss modern C++ from a scientific computing perspective, covering a wide range of topics, including the finer points of C++, specific idioms of C++ in scientific computing, parallelism, considerations of hardware and performance, and "carpentry" topics, such as CMake, that extend beyond basic programming to make you a more productive programmer. This book focuses on computing "idioms" and applications -- rather than a complete treatment of the C++ language -- as well as peripheral "carpentry" topics, and is designed to take students to a level where they can be productive in a scientific programming project. The C++ topics discussed are chosen for their relevance to computing, and other topics are purposely excluded. Additionally, several topics relevant to scientific computing are included that are not intimately tied to C++ as a language. February 2026 / xii + 466 pages / Softcover / 978-1-61197-860-5 / List $89.00 / SIAM Member $62.30 / SE33 Bookstore link: https://epubs.siam.org/doi/10.1137/1.9781611978612 ------------------------------------------------------- From: Vanja Nikolić vanja.nikolic@ru.nl Date: February 20, 2026 Subject: Call for Minisymposia -- Wave-Ned 2026 | New Deadline: March 16, 2026 Dear colleagues, The deadline for minisymposia proposals for the WAVE-NED Conference on Analysis, Modeling and Numerics of Waves has been extended to March 16, 2026. The WAVE-NED conference will take place at TU Delft (The Netherlands) from August 26-28, 2026. Further details on registration, deadlines, and the scientific program can be found on the conference website (https:// www.tudelft.nl/evenementen/2026/ewi/diam/wave-ned). This conference aims to bring together mathematicians working on wave phenomena across a wide range of physical contexts. The goal is to foster interaction and knowledge exchange between experts in analysis, mathematical modeling, and numerical simulation of wave propagation. The meeting is organized under the umbrella of the 4TU.AMI Strategic Research Initiative WAVES NL: Advancing Mathematical Methods for Wave Phenomena. Besides minisymposia, the program will feature five plenary lectures by: Stéphanie Chaillat (ENSTA Paris) Barbara Kaltenbacher (University of Klagenfurt) Björn de Rijk (KIT) Euan Spence (University of Bath) Manuel Torrilhon (RWTH Aachen) With best regards, The WAVE-NED Organizing Committee Victorita Dolean, *Anna Geyer, Julian Koellermeier, Vanja Nikolić, Carlos Pérez Arancibia, Laura Scarabosio, *Carolina Urzúa-Torres. *local organizers ------------------------------------------------------- From: Serge Prudhomme serge.prudhomme@polymtl.ca Date: February 17, 2026 Subject: Call for abstracts (deadline March 1): C3SE-2026, Montréal, May 19-22, 2026 The 1st Canadian Congress on Computational Sciences and Engineering (C3SE-2026, https://www.cacse-accsg.ca/c3se) will be held May 19-22, 2026, in Montréal, Canada. Organized by the Canadian Association for Computational Science and Engineering (CACSE/ACCSG, https://www.cacse-accsg.ca), the Congress will bring together experts from all fields of science and engineering to exchange ideas, share results, discuss fundamental principles and emerging trends, and build collaborations that strengthen the Computational Science and Engineering (CSE) community. International participants are more than welcomed to join this first edition of the Congress. C3SE-2026 welcomes contributions in Computational Sciences and Engineering, including (but not limited to): Numerical Methods and Algorithms Advanced Discretization Techniques Scientific and High-Performance Computing Artificial Intelligence, Data Science, and Scientific Machine Learning Computational Fluid Dynamics Quantum and Emerging Computing Paradigms Verification, Validation, Uncertainty Quantification, and Visualization Digital Twins & Sustainability Computational Design and Sustainability Applications in all areas of Science and Engineering: Solid and Structural Mechanics, Fluid Dynamics, Electromagnetics, Physics, Chemistry, Biology, etc. The program will feature plenary and semi-plenary lectures, technical sessions, and short courses, as well as student activities and strong networking opportunities across academia, government, and industry. The deadline to submit an abstract has been extended to March 1, 2026. https://www.cacse-accsg.ca/submission We look forward to receiving your abstract and seeing you in Montréal. ------------------------------------------------------- From: Wen-shin Lee wen-shin.lee@stir.ac.uk Date: February 17, 2026 Subject: OPERA Conference, 22-26 June 2026, Stirling, Scotland, UK OPERA 2026: Orthogonal Polynomials, Exponential Analysis, Rational Approximation, with Applications 22-26 June 2026 | University of Stirling, Scotland, UK https://opera2026.uk/ We are pleased to announce OPERA 2026, an international conference bringing together researchers in mathematics, computational science, and related fields to explore the interconnected themes of orthogonal polynomials, exponential analysis, and rational approximation, along with related topics such as integration, multiresolution analysis, subdivision and refinability, structured matrices, as well as sparse interpolation in computer algebra. OPERA 2026 will also highlight how advances in these areas are driving progress in image and signal processing, as well as in a wide range of diverse scientific and engineering applications, including, but not limited to, antenna design, vibration analysis, magnetic resonance relaxometry, financial time series analysis, and biomedical signal processing. === CONFIRMED PLENARY SPEAKERS === Bernhard Beckermann, University of Lille, France Stefano De Marchi, University of Padua, Italy Stefan Güttel, University of Manchester, UK Miguel Piñar, University of Granada, Spain Gerlind Plonka-Hoch, University of Göttingen, Germany === CALL FOR PRESENTATIONS === Abstracts for contributed talks and posters may be submitted via the conference website. Acceptance is on a rolling basis, so early submission is encouraged. A special issue with the journal Numerical Algorithms (Springer) is planned in connection with the conference. === IMPORTANT DATES === Abstract submission deadline: 1 May 2026 Notification of acceptance: 10 May 2026 Accommodation deadline: 10 May 2026 Registration deadline: 1 June 2026 === ACCOMMODATION === A limited number of on-campus rooms are available at a reduced rate until 10 May 2026. Details are provided on the conference website. ------------------------------------------------------- From: Martin Benning martin.benning@ucl.ac.uk Date: February 16, 2026 Subject: 5th IMA Conference on Inverse Problems from Theory to Application, 8-10 September 2026 8-10 September 2026, Woburn House, Tavistock Square, London WC1H 9HQ https://ima.org.uk/28046/5th-ima-conference-on-inverse-problems-from-theory-to-application/ Inverse problems remain at the heart of scientific discovery and technological innovation, spanning fields as diverse as medical and satellite imaging, biology, astronomy, geophysics, environmental sciences, computer vision, energy, finance, and defence. Fundamentally, these problems involve using a mathematical or physical model "backwards" to infer a quantity of interest from the observed effects it produces. A main challenge resulting from using models "backwards" is that solutions are often not well posed, i.e., not unique or unstable with respect to small perturbations in the data. This difficulty continues to stimulate research and innovation at the interface of applied mathematics, statistics, engineering, and physics, leading to social and economic benefit through impact on science, medicine, and engineering. The aim of this conference is to bring together mathematicians, statisticians, and computer scientists working on the theoretical and numerical aspects of inverse problems, alongside engineers and physicists, tackling challenging applications. We will discuss recent developments and open challenges in theory, methodology, and computational algorithms. Joint Event: Big Data Day This year, the conference features a dedicated Big Data Day, held in conjunction with the IMA Conference on the Mathematical Challenges of Big Data. This joint session reflects the growing intersection between classical model-based theory and modern data-driven approaches. With the rise of deep learning, generative models, and neural operators, the boundary between Inverse Problems and Data Science has become increasingly blurred. This day will explore the synergy between these fields, examining how techniques from network science, information theory, and large-scale optimisation can be leveraged to address ill-posedness, and conversely, how inverse problem theory can inform the foundations of data science. We welcome industrial representatives, doctoral students, early career researchers, and established academics to attend and contribute. Topics of Interest - Machine Learning & Data-Driven Methods: Deep learning for inverse problems, learned regularisation, neural operators, unrolled networks. - Big Data, Statistics & Optimisation: Large-scale inverse problems, Bayesian inference, uncertainty quantification, data assimilation, stochastic algorithms. - Mathematical Theory: Analysis of inverse problems, stability, uniqueness, and regularisation theory. - Imaging & Applications: Mathematical and computational imaging, tomography, and wider applications in science, medicine, and engineering. Call for Papers and Posters Please submit your 300 word abstract via https://my.ima.org.uk/ by 31 May 2026. Abstracts should be submitted as a Word document. If you are an IMA Member or you have previously registered for an IMA conference, then you are already on our database. Please "request a new password" using the email address previously used, to log in. Conference Fees Includes entry to the conference as well as refreshments and lunches. Full 3 day Conference Fee - Member- £375.00 Full 3 day Conference Fee - Non-Member - £500.00 Full 3 day Conference Fee - Student Member - £230.00 Full 3 day Conference Fee - Student Non Member - £270.00 Conference dinner details and pricing will be announced soon. Please register for the conference via: https://my.ima.org.uk/ Please email conferences@ima.org.uk for further information. ------------------------------------------------------- From: Max Winkler max.winkler@math.tu-chemnitz.de Date: February 20, 2026 Subject: New Conference, 39th Chemnitz Finite Element Symposium, 7-9 September 2026 Conference name: 39th Chemnitz Finite Element Symposium Date: 7-9 September 2026 Location: Chemnitz c/o56 Hotel, Germany Invited Speakers: Inga Berre, Gianluigi Rozza, Ridgway Scott, Karen Veroy-Grepl Website: https://www.chemnitz-am.de/cfem2026/ ------------------------------------------------------- From: Marie E. Rognes meg@simula.no Date: February 17, 2026 Subject: PhD Fellowship in Computational Mathematics/Scientific Computing at Simula Research Lab, Norway The Department for Numerical Analysis and Scientific Computing at Simula Research Laboratory (Oslo, Norway) is seeking a PhD Candidate in Computational Mathematics and Scientific Computing. We offer an excellence-oriented, vibrant, and collaborative research environment. The position includes an inclusive international working atmosphere, generous support for travel and networking activities, and competitive benefits. More information and application: https://www.simula.no/careers/job-openings/phd-position-in-scientific-computing-next-generation-digital-twin-algorithms Key Dates: Application deadline: April 15, 2026 (evaluated on a rolling basis) Planned start date: August 1, 2026 (flexible) Note: We are primarily looking for a PhD Candidate. However, if you are interested in a Postdoctoral Fellowship and find that the job description matches your profile, please feel free to reach out. Contact: Chief Research Scientist Marie E. Rognes, PhD (meg@simula.no) ------------------------------------------------------- From: Evrim Acar evrim@simula.no Date: February 18, 2026 Subject: PhD Position, Data Science and Knowledge Discovery, SimulaMet, Oslo, Norway At Data Science and Knowledge Discovery Department (DataSci) at Simula Metropolitan Center for Digital Engineering (Oslo, Norway), we are looking for a highly-motivated, self-driven and curious PhD student with a strong background in numerical linear algebra and machine learning. We work with unique data and research challenges provided by clinical partners. We are looking for a PhD student who will be part of an interdisciplinary and international research environment, and share our passion to develop impactful data science methods pushing the frontiers in multiple disciplines. The topic of the PhD research will lie at the intersection of multimodal learning, self-supervised learning, contrastive learning and (coupled) tensor decompositions. The project will focus on developing interpretable multimodal learning methods jointly analyzing data from abundant and scarce data modalities, exploring the nonlinearity-interpretability tradeoff. The deadline for applications: March 15, 2026 For more information, please see the job posting: https://www.simula.no/careers/job-openings/phd-position-in-multimodal-learning ------------------------------------------------------- From: Marcello Carioni m.c.carioni@utwente.nl Date: February 17, 2026 Subject: PhD Position in Optimization and Optimal Transport, University of Twente We are looking for a talented, research-oriented PhD candidate to join the NWO-VIDI project "SPARGO: Exploring and Exploiting the Geometric Landscape of Infinite-Dimensional Sparse Optimization" at University of Twente. We offer a full-time position for four years in an active and stimulating research environment, bridging applied and pure mathematics. The PhD candidate will work under the supervision of Dr. Marcello Carioni and will be part of the group Mathematics of Imaging and Artificial Intelligence (MIA) at the department of Applied Mathematics. For more information about the position and the application procedure, you are welcome to visit https://utwentecareers.nl/en/vacancies/2360/phd-position-in-optimisation-and-optimal-transport/ and contact Dr. Marcello Carioni (m.c.carioni@utwente.nl). For more information about the project you can additionally visit https://marcellocarioni.github.io/spargo/ Deadline: 25 March 2026. ------------------------------------------------------- From: Håkon Hoel haakonah@uio.no Date: February 14, 2026 Subject: PhD Research Fellowship at the University of Oslo A PhD Research Fellowship in Mathematics and Fluid Mechanics is available at the Department of Mathematics, University of Oslo, starting no later than October 1st, 2026. The position is for three years with the possibility of a fourth year that includes 25% of other career-promoting work, such as teaching, supervision, or research assistance, depending on the applicant's qualifications and the department's needs. The successful applicant will research ocean wave dynamics, focusing on predicting extreme events like freak waves, frequency downshift, and transverse modulations using stochastic mathematical models and computational methods for uncertainty quantification. Collaboration with the Hydrodynamical Laboratory for experimental data validation is expected. For further details: https://www.jobbnorge.no/en/available-jobs/job/294736/phd-research-fellow-in-mathematics-and-fluid-mechanics ------------------------------------------------------- From: Tiangang Cui tiangang.cui@sydney.edu.au Date: February 17, 2026 Subject: Postdoctoral position at University of Sydney Dear Colleagues, We would like to draw your attention to an open postdoctoral position at the University of Sydney to work at the interface between dynamical systems, optimal transport and machine learning working with Tiangang Cui and Georg Gottwald. To apply and find more information, go to https://usyd.wd105.myworkdayjobs.com/en-US/USYD_EXTERNAL_CAREER_SITE/job/Postdoctoral-Research-Associate-in-Mathematics-and-Statistics_0146604-1 The position is for 2 years and the deadline for applications is Sunday March 29 2026 11:59 PM Sydney time. Please distribute as you see fit. Thank you very much, Tiangang Cui ------------------------------------------------------- From: Stefan Engblom stefane@it.uu.se Date: February 16, 2026 Subject: Assistant Professor in Mathematics/Information Technology, Uppsala University Uppsala University is launching an excellence initiative focused on recruiting Assistant Professors, with the aim of attracting the future research leaders. The Department of Mathematics and the Department of Information Technology are seeking outstanding early-career researchers who would be a strong fit for either department. The position involves advanced research within one of the department's research programmes/research areas, as well as teaching in mathematics or information technology. The subject area is broad, and we are seeking strong researchers working anywhere from pure theoretical foundations to application-oriented research. Apply through the application system: https://uu.varbi.com/what:job/jobID:895804/ ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Volume: CPAA Vol. 28 Communications on Pure and Applied Analysis Volume: 28 April 2026 https://www.aimsciences.org/cpaa/article/2026/28/0 Averaging principle for multi-scale Stochastic Tamed 3D Navier-Stokes Equations driven by Lévy noise Shihu Li, Qiang Rong and Chonghai Zhao Homogenization of Robin and Steklov problems in a domain with a thin rough boundary Patrizia Donato, Sara Monsurrò and Federica Raimondi Characterizations of weighted Besov and Triebel-Lizorkin spaces with variable smoothness Jae-Hwan Choi, Jin Bong Lee, Jinsol Seo and Kwan Woo On solutions to Hardy-Sobolev equations on Riemannian manifolds Guillermo Henry and Jimmy Petean Asymptotic behavior for Euler equations with spatiotemporal nonlinear damping in critical case Changchun Liu and Guanghan Zhao Read more articles here: https://www.aimsciences.org/cpaa/article/2026/28/0 ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Volume: EECT Vol. 19 Evolution Equations and Control Theory Volume: 19 May 2026 https://www.aimsciences.org/eect/article/2026/19/0 Solvability and Ulam stability in the α-norm for a nonlocal coupled system of integrodifferential equations in generalized Banach spaces Hamida Litimein, Sara Litimein, Zhen-You Huang and Mouffak Benchohra Regularity for non-autonomous parabolic equations with right hand side singular measures involved Joachim Rehberg Exponential stabilization in a hybrid power transmission line model using feedback sensors at discontinuous joints and uniformly stable approximations Ahmet Özkan Özer and Jacob Gray Walterman Existence of optimal and ε-optimal controls for the stochastic 3D magnetohydrodynamic-α model R. D. Ayissi, G. Deugoué, J. Ngandjou Zangue and T. Tachim Medjo Time optimal control problem for the Landau-Lifshitz-Bloch equation Sidhartha Patnaik and Kumarasamy Sakthivel A note on weighted vanishing mean value functions and WPAP solutions to nonautonomous evolution equations Jin Liang, Gaston Mandata N'Guérékata, Ti-Jun Xiao and Jun Zhang Read more articles here: https://www.aimsciences.org/eect/article/2026/19/0 ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Article: FMF Vol. 8, Art. 2 Frontiers of Mathematical Finance Volume: 8, Art. 2 March 2026 https://www.aimsciences.org/FMF/article/2026/8/0 Synchronizing pretrained kernel regressors with applications to American option pricing Xuwei Yang, Anastasis Kratsios, Florian Krach, Matheus Grasselli and Aurelien Lucchi ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Article: JMD Vol. 22, Art. 1 Journal of Modern Dynamics Volume: 22, Art. 1 2026 https://www.aimsciences.org/jmd/article/2026/22/0 Ergodic averages for sparse sequences along primes Andreas Koutsogiannis and Konstantinos Tsinas ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Article: MFC Vol. 12, Art. 1 Mathematical Foundations of Computing Volume: 12, Art. 1 August 2026 https://www.aimsciences.org/mfc/article/2026/12/0 Robust joint estimation of state of charge and electrochemical parameters for Lithium-ion batteries under model uncertainty and measurement outliers Ziheng Zhou, Quan Li, Chaolong Zhang and Zhijian He ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: February 17, 2026 Subject: Contents, AIMS New Volume: MFC Vol. 11 Mathematical Foundations of Computing Volume: 11 June 2026 https://www.aimsciences.org/mfc/article/2026/11/0 Asymptotic analysis of the SEIR epidemic model based on the matched asymptotic method of singular perturbation theory Yue Zhu and Yi Zhang On an anisotropic fractional boundary value problem of Kirchhoff-type Nezha Kamali, Mohammed Shimi and Elhoussine Azroul A parallel time-Schwarz domain decomposition method applied to an Euler- Bernoulli beam equation with constant coefficients Abdelhalim Ben bouzid, Samir Khallouq and Nabila Nagid Hausdorff measure of noncompactness and Korovkin type approximation theorem for certain generalized difference sequence spaces Pinakadhar Baliarsingh and Subhasmita Maharana Convex analysis method for distributed learning algorithm Mingdang Tian, Chenmin Ni, Baohuai Sheng and Shuhua Wang Blind RSA signatures from the t-generalized Lehmer sequences of some classes of groups Elahe Mehraban, T. Aaron Gulliver, Reza Ebrahimi Atani and Evren Hincal Read more articles here: https://www.aimsciences.org/mfc/article/2026/11/0 ------------------------------------------------------- End of Digest **************************