From bounce-5408488-88629717@mm.list.cornell.edu Fri Mar 27 10:05:48 2026 From: "David S. Bindel" To: (No Name Available) Subject: NA Digest, V. 26, # 13 Date: Fri, 27 Mar 2026 10:04:29 -0400 NA Digest Friday, March 27, 2026 Volume 26 : Issue 13 Today's Editor: David S. Bindel Cornell University bindel@cornell.edu Today's Topics: Software Announcement: GRASP -- Solver Reliability Analysis and Validation Framework Launch of the BOS Webinar Series The Langtangen Seminar on Scientific Computing 2026 Mimetics Operators Library Enhance (MOLE) Tutorial, May 12, 2026 Workshop on Computational Mathematics, May 2026 AMiTaNS'26, Jun-Jul 2026 Final Call for SciCADE 2026 Contributed Talks and Posters, June-July 2026 First Gmsh User Meeting, July 8-9 2026, Liège (Belgium) Workshop Announcement - 15th Workshop on Parallel-in-Time Integration (PinT 2026), Jul 2026 ECC 2026 Workshop - Robustness, resilience, and early warnings in natural dynamical networks, July 2026 International Conference on Bilevel Optimization, Pittsburgh, August 2-5, 2026 Conference on Scientific Computing and Machine Learning, September 2026, Bath, UK Postdoc in Numerical Analysis at the Institute of Mathematics, Prague, Czechia Postdoc position in nonlinear optimization at the University of Tokyo, Japan PhD Position, Computational Mathematics, TU Hamburg, Germany PhD position on Computational Imaging at CWI (Amsterdam) PhD scholarship in Karlsruhe: Estimation of short-term extremes in air pollution and their drivers, Germany (DAAD scholarship) Contents, AIMS New Article: ACSE Vol. 8, Art. 1 Contents, AIMS New Article: AMMC Vol. 7, Art. 1, 3 Contents, AIMS New Article: MFC Vol. 12, Art. 6 Contents, AIMS New Volume: IPI Vol. 23 Contents, AIMS New Volume: MCRF Vol. 18 See this issue of NA Digest on the web at: https://na-digest.coecis.cornell.edu/na-digest-html/26/v26n13.html Submissions, FAQs, and archives: https://na-digest.coecis.cornell.edu/ ------------------------------------------------------- From: Krishna Vedula Krishnavedula5@gmail.com Date: March 21, 2026 Subject: Software Announcement: GRASP -- Solver Reliability Analysis and Validation Framework GRASP is a framework for analysing the global reliability of nonlinear root-finding methods. Unlike standard numerical libraries (e.g., MATLAB, SciPy, Mathematica), which typically evaluate solvers from a single initial condition, GRASP studies solver behaviour across large sets of initial conditions. The goal is to better understand convergence reliability, failure regions, and basin-of-attraction structure. The framework provides: - large-scale sweeps of initial conditions - statistical reliability estimates (success probability, coverage) - basin-of-attraction diagnostics - automated interpretation of solver behaviour - a validation layer that checks consistency between expected and observed outcomes In particular, GRASP attempts to bridge the gap between theoretical expectations (e.g., derivative-related pathologies) and observed numerical behaviour by explicitly validating solver performance. A live demo is available here: https://root-finding-reliability-framework.vercel.app Source code: https://github.com/krishnavedula5-code/GRASP I would be grateful for any feedback from the community. Best regards, Krishna Vedula ------------------------------------------------------- From: Yasmine Beck y.beck@tue.nl Date: March 24, 2026 Subject: Launch of the BOS Webinar Series The BOS Webinar Series is a new initiative of the Bilevel Optimization Society (BOS), which is part of the Mathematical Optimization Society (MOS). This online seminar series is open to anyone interested in bilevel optimization and provides a platform to present new ideas, share results, and discuss open questions in theoretical, computational, and applied bilevel optimization. Each season, the series features talks by internationally recognized experts alongside emerging researchers, highlighting recent and impactful advances in bilevel optimization. Details: Seminars are scheduled bi-weekly on Tuesdays at 4:00 pm CET via Microsoft Teams. Each session is approximately 50 minutes long and may consist of either one 40-minute talk or two 20-minute talks, followed by discussion. For more information, please visit https://bileveloptimization.org/bos_webinar Updates and Teams links will be shared via the BOS mailing list. To join the BOS mailing list, please use the membership form at https://bileveloptimization.org/membership. Schedule: April 14: Opening address by Alain Zemkoho (BOS President, University of Southampton), followed by Stephan Dempe (TU Bergakademie Freiberg) April 28: Martina Cerulli (University of Salerno) and Kübra Tanınmış (Koç University) May 12: Miguel F. Anjos (University of Edinburgh) May 26: Bo Lin (University of Toronto) and Mohammad Sadegh Salehi (Independent Scholar) June 9: Didier Aussel (University of Perpignan) June 23: Sebastian Vasquez (Carnegie Mellon University) and Noah Weninger (University of Waterloo) We look forward to seeing you online! Yasmine Beck, Kuang Bai, and Nagisa Sugishita ------------------------------------------------------- From: Thomas M. Surowiec thomasms@simula.no Date: March 24, 2026 Subject: The Langtangen Seminar on Scientific Computing 2026 We are pleased to welcome you to this year's edition of the Langtangen Seminar on Scientific Computing. Named in honor of Professor Hans Petter Langtangen, the series is part of our continued strategy to advance scientific computing and features internationally renowned researchers across computational mathematics, numerical analysis, optimization, and high-performance computing. The 2026 seminar series is dedicated to a group of researchers whom we consider to be driving forces of the next generation of computational mathematics and scientific computing. About the event: Time: Tuesdays in April/May 2026 at 14:00 CEST, starting April 7 Format: A 40-minute online colloquium followed by circa 15 minutes of Q&A and discussion. Platform: The talks will be streamed via Zoom and, pending consent, subsequently hosted on our YouTube channel: https://www.youtube.com/@langtangen-seminar Zoom link: https://simula.zoom.us/j/66860100673?pwd=dbdlfbHJkfz6uWzp9bXpnpnlamaoyx.1 This seminar is organized by Marie E. Rognes & Thomas M. Surowiec at Simula Research Laboratory. ------------------------------------------------------- From: Jose E. Castillo jcastillo@sdsu.edu Date: March 23, 2026 Subject: Mimetics Operators Library Enhance (MOLE) Tutorial, May 12, 2026 The Computation Science Research Center (CSRC) at San Diego State University invites you to: A Tutorial on The Mimetic Operators Library Enhanced (MOLE) May 12, 2026 from 10 AM to 12:00 PM. PDT. MOLE is a high-quality numerical library that implements high-order mimetic difference operators to solve PDEs in C++ and MATLAB/Octave. It provides discrete analogs of the most common vector calculus operators: Gradient, Divergence, Laplacian, and Curl. These operators (highly sparse matrices) act on staggered grids (uniform, non-uniform, curvilinear) and preserve locally and globally quantities of interests for systems of conservation laws. This tutorial will cover an introduction to MOLE mimetic difference operators; gradient, divergence, laplacian and curl for C++ and MATLAB /Octave users. Attendants will learn how to use the MOLE library through examples, and also review the installation and guidelines to contribute to the MOLE library. Please, read the Getting Started Section in mole-docs.readthedocs.io/ and install or clone the MOLE library. Installation support will be provided 90-minutes prior to the beginning of the tutorial. The tutorial is free and will be held in person at SDSU's Bioscience Center Auditorium on May 12, 2026 from 10 AM to 12:00 PM U.S. PT, and also online. To register for the tutorial in person or online, please fill out this form: https://forms.gle/7KZ8t3zCUxu7f6vB7. For further information, please contact Professor Jose Castillo at: jcastillo@sdsu.edu, ------------------------------------------------------- From: Tobias von Petersdorff petersd@umd.edu Date: March 25, 2026 Subject: Workshop on Computational Mathematics, May 2026 We announce our annual WORKSHOP ON COMPUTATIONAL MATHEMATICS: SAYAS NUMERICS DAY 2026 May 9, 2026 from 9:30am to 6pm (lunch will be provided) at the University of Maryland, College Park Youssef Marzouk (MIT) will give the KEYNOTE TALK "Dynamic measure transport for sampling and quantization" There will be twelve CONTRIBUTED TALKS (20 minutes each): DEADLINE for submitting talks is APRIL 3, 2026 We particularly encourage graduate students and early career researchers to submit talks. REGISTER NOW at https://numericsday.math.umd.edu THE SCIENTIFIC COMMITTEE Harbir Antil, Andrei Draganescu, Ricardo H. Nochetto, Petr Plechac, Tobias von Petersdorff ------------------------------------------------------- From: Michail Todorov mditod@gmail.com Date: March 26, 2026 Subject: AMiTaNS'26, Jun-Jul 2026 Conference URL: http://2026.eac4amitans.eu Dates: June 27-July 2, 2026 Location: Albena, Bulgaria The Euro-American Consortium for Promotion of the Application of Mathematics in Technical and Natural Sciences is pleased to announce its Eighteenth Conference AMiTaNS'26 to be held in the 5-star Flamingo Grand hotel in Albena, Albena Complex as a village of excellent resort hotels from three to five stars. It is situated close to the big city of Varna, which is an international hub. 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 and Scientific Computing, Continuum Mechanics, Applied Analysis, Biomathematics, Applications of E-learning and Machine Learing in Technical and Natural Sciences, AI - Present and Future. You are welcomed to announce and organize special sessions that should be within the general topic of the conference. If you are interested in attending AMiTaNS'26 please prepare a short abstract within 300 words clearly stating the goal, tools, fill out the online Application form. The formal deadline for submissions is March 31, 2026. As exclusion, late submissions after that date will be accepted also. Contact person and conference organizer: Prof. Michail Todorov, email: mditod@gmail.com ------------------------------------------------------- From: Benedict Leimkuhler scicadeinfo@gmail.com Date: March 20, 2026 Subject: Final Call for SciCADE 2026 Contributed Talks and Posters, June-July 2026 The 16th Edition of SciCADE (International Conference on Scientific Computing and Differential Equations) will take place in Edinburgh, June 29-July 3, 2026. There are 8 plenary talks and 76 mini-symposia each with 4-8 speakers (partial details of the sessions are available on the website at https://www.scicade.org). There is still time to propose a contributed talk or poster to present at the meeting and a couple of spaces are available at the associated Research School, which takes place the preceding week. ------------------------------------------------------- From: Christophe Geuzaine cgeuzaine@uliege.be Date: March 24, 2026 Subject: First Gmsh User Meeting, July 8-9 2026, Liège (Belgium) We are pleased to announce that registration for the first Gmsh User Meeting is now open! The meeting will take place on 8-9 July 2026 in Liège (Belgium) and will bring together users and developers to share experiences, best practices, and new developments around the open source finite element mesh generator Gmsh. For all details and to register, please visit: https://gmsh.info/news/ We look forward to seeing you there! Jean-François Remacle and Christophe Geuzaine ------------------------------------------------------- From: Andreas Schafelner andreas.schafelner@jku.at Date: March 26, 2026 Subject: Workshop Announcement - 15th Workshop on Parallel-in-Time Integration (PinT 2026), Jul 2026 We are pleased to announce that the registration for the 15th Workshop on Parallel-in-Time Integration (PinT 2026), hosted at RICAM in Linz, Austria, is now open. The workshop will start at Monday, July 6, and will end at Friday, July 10, 2026. The program will include invited talks (60 mins incl. questions), contributed talks (25 mins incl. questions) as well as a poster session. Deadline for submitting abstracts for contributed talks as well as posters is May 24, 2024. Please visit the webpage https://www.ricam.oeaw.ac.at/events/workshops/pint2026/ for more details as well as the registration form. The website is regularly updated. We look forward welcoming you this summer in Linz. Best regards, Andreas Schafelner Herbert Egger ------------------------------------------------------- From: Giulia Giordano giulia.giordano@unitn.it Date: March 20, 2026 Subject: ECC 2026 Workshop - Robustness, resilience, and early warnings in natural dynamical networks, July 2026 The full-day pre-conference workshop of the European Control Conference (ECC 2026) Robustness, resilience, and early warnings in natural dynamical networks organised by Giulia Giordano, Rami Katz and Daniele Proverbio, will be held in Reykjavík, Iceland, on Tuesday, July 7th, 2026. All details are in the Workshop Website: https://giordanogiulia.altervista.org/robustness-resilience-earlywarningsignals-workshop/ The interdisciplinary programme focuses on methodologies, rooted in control theory and dynamical systems, to study the robustness and resilience of complex dynamical systems and networks, as well as early warning signals, with emphasis on natural systems, and features outstanding invited speakers (Mustafa Khammash, Andreas Morr, Baruch Barzel, Saber Jafarpour, Yuzhen Qin) along with engaging discussions. Also participants will have the opportunity to present! There will be a Flash Talks session. Register for the workshop and send an e-mail (giulia.giordano@unitn.it) within April 10 with a proposed Flash Talk contribution on the workshop topics! Registration for ECC 2026 is open and early bird registration for workshops is available until April 12. We are looking forward to seeing many of you at the workshop in Reykjavík on July 7th! ------------------------------------------------------- From: Alain Zemkoho a.b.zemkoho@soton.ac.uk Date: March 26, 2026 Subject: International Conference on Bilevel Optimization, Pittsburgh, August 2-5, 2026 ICBO 2026 -- Abstract submission deadline approaching The deadline for abstract submission for the International Conference on Bilevel Optimization (ICBO) 2026 is fast approaching, and we warmly invite you to be part of this flagship event on bilevel optimization. The abstract submission deadline: 1 April 2026 This is the key date to keep in mind as we prepare an exciting scientific programme bringing together researchers and practitioners from across optimization, machine learning, energy, economics, and beyond. The conference will feature: A tutorial and summer school (2 August 2026) Three days of high-quality scientific sessions A vibrant and international research community around bilevel optimization Submit your abstract and find full details here: https://bileveloptimization.org/icbo/2026 ------------------------------------------------------- From: Matthias Ehrhardt m.ehrhardt@bath.ac.uk Date: March 26, 2026 Subject: Conference on Scientific Computing and Machine Learning, September 2026, Bath, UK Our forthcoming international conference on Scientific Computing and Machine Learning is now open for registration! This conference will take place at the University of Bath from 14-17 September 2026. This conference is supported by EPSRC Programme Grant Maths4DL on the Mathematics of Deep Learning, JST CREST Prediction Mathematical Foundation Operator Learning Based on Geometric Classical Field Theory and Infinite Dimensional Data Science, and by JST ASPIRE Deep scientific computing: integration of physical structure and deep learning through mathematical science. Submissions for contributor talks and posters are welcomed and will open shortly. Please visit the website for more information: https://scml.jp ------------------------------------------------------- From: Jakub Sistek sistek@math.cas.cz Date: March 25, 2026 Subject: Postdoc in Numerical Analysis at the Institute of Mathematics, Prague, Czechia There is an open 2-year postdoctoral position at the Institute of Mathematics of the Czech Academy of Sciences in Prague, see https://app.math.cas.cz/public/positions The deadline for applications is March 31, 2026, while the successful candidate is expected to start from July 2026 or upon agreement. We invite applications of young researchers working in the fields of numerical analysis to join our team. We are looking for a young researcher who has achieved convincing results in this area of research and who has completed his or her PhD degree in Mathematics within the last 2 years. The successful applicant will perform research in the Department of Constructive Methods of Mathematical Analysis, which has a long tradition of excellent research in numerical analysis. The topics may include those already studied in the department such as domain decomposition methods, high-performance computing, numerical linear algebra, finite element methods, and error estimates. However, complementary topics in numerical analysis and HPC are also welcome. The position is not associated with a particular project and gives the successful candidate the option to carry on research in his/her own direction. No teaching is involved. We require verbal and written English communication skills and abilities to work both independently and collaboratively. The selection committee will judge professional record of applicants, with respect to the stage of their career. We offer affordable accommodation in the building of the Institute for the first 3-6 months. Questions and informal inquiries should be directed to the head of the department, Dr. Jakub Sístek to his email address sistek@math.cas.cz. ------------------------------------------------------- From: Ching-pei Lee leechingpei@gmail.com Date: March 27, 2026 Subject: Postdoc position in nonlinear optimization at the University of Tokyo, Japan The 5th Laboratory of the Department of Mathematical Informatics at the University of Tokyo is hiring a postdoctoral fellow in nonlinear optimization for up to 5 years with a starting date set for September 2026 (negotiable). For further information, see the job posting at: https://leepei.github.io/postdoc_ad.pdf The fellow will be under the supervision of Ching-pei Lee and Akiko Takeda. This position is funded by a grant from the Japan Science and Technology Agency. ------------------------------------------------------- From: Daniel Ruprecht ruprecht@tuhh.de Date: March 25, 2026 Subject: PhD Position, Computational Mathematics, TU Hamburg, Germany A 4-year PhD position in Computational Mathematics is available at Hamburg University of Technology (TUHH) in Hamburg, Germany. For details and to apply please follow this link: https://stellenportal.tuhh.de/jobposting/bcb9c4eb0ff748874ada30214c9515c04bf6ac130 ------------------------------------------------------- From: Felix Lucka Felix.Lucka@cwi.nl Date: March 26, 2026 Subject: PhD position on Computational Imaging at CWI (Amsterdam) Dear colleagues (apologies for cross-postings), We are looking for a PhD student to work in a project on "Computational Aspects of Novel Image Representation Techniques for Computed Tomography" at CWI (Amsterdam). All further info can be found here: https://www.cwi.nl/en/jobs/vacancies/1282015/ Thanks for forwarding it to suitable candidates & best regards, Felix Lucka & Tristan van Leeuwen ------------------------------------------------------- From: Angela Hühnerfuß kcds@kit.edu Date: March 26, 2026 Subject: PhD scholarship in Karlsruhe: Estimation of short-term extremes in air pollution and their drivers, Germany (DAAD scholarship) We are currently looking for a PhD candidate for a research project on "Estimation of short term extremes in air pollution and their drivers" supervised by Hendrik Andersen, Jan Cermak and Vicky Fasen-Hartmann at KIT Graduate School Computational and Data Science (KCDS), Karlsruhe Institute of Technology (KIT). The research focus is on developing a new data-driven approach to accurately predict extremes in urban air pollution from observation data, and to quantify the contributions of the various factors driving these extremes. Therefore, methods from extreme value statistics will be implemented in a machine-learning framework to estimate and predict air pollution extremes. As a starting point, we use Paris as a baseline city, where ML methods were successfully implemented to reproduce specified PM1 concentrations. This model architecture will be adapted and retrained on multi-city data from global air pollution hotspots, enabling generalization beyond the urban area of Paris. The project lies at the intersection of innovation in mathematics and meteorology. By combining extreme value theory with machine learning, it aims to advance the current state of the art in predicting air pollution extremes. The doctoral degree will be awarded in either Mathematics or Meteorology, depending on the candidate's academic background. The successful candidate will receive a DAAD Graduate School Scholarship funded by the German Academic Exchange Service (DAAD). Further information: https://www.kcds.kit.edu/72.php Application deadline: April 30, 2026 ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: March 20, 2026 Subject: Contents, AIMS New Article: ACSE Vol. 8, Art. 1 Advances in Computational Science and Engineering Volume: 8, Art. 1 June 2026 https://www.aimsciences.org/ACSE/article/2026/8/0 On the behavior of some transmission conditions in finite volume schemes for scalar conservation laws on network with shock detection enhancement Sabrina Francesca Pellegrino and Florian Peru ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: March 20, 2026 Subject: Contents, AIMS New Article: AMMC Vol. 7, Art. 1, 3 Applied Mathematics for Modern Challenges Volume: 7, Art. 1, 3 March 2026 https://www.aimsciences.org/AMMC/article/2026/7/0 Data-driven filter design for flexible and noise-robust tomographic imaging Hamid Fathi, Alexander Skorikov and Tristan van Leeuwen Determination of active forces in actomyosin systems as inverse source problems for the Stokes equation Emily Klass, Tram Thi Ngoc Nguyen, Nilay Cicek, Yoav G. Pollack, Sarah Köster, Andreas Janshoff and Anne Wald ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: March 20, 2026 Subject: Contents, AIMS New Article: MFC Vol. 12, Art. 6 Mathematical Foundations of Computing Volume: 12, Art. 6 August 2026 https://www.aimsciences.org/mfc/article/2026/12/0 A binomial-information-theoretic synthesis: On the size-competence trade-off in voting Yu Xiao, Qiutong Lin, Bohua Wang, Anqi Jiang and Xin Long ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: March 20, 2026 Subject: Contents, AIMS New Volume: IPI Vol. 23 Inverse Problems and Imaging Volume: 23 August 2026 https://www.aimsciences.org/ipi/article/2026/23/0 Determination of DN map from scattering relation for simple surfaces in low regularity Kelvin Lam An inverse scattering problem for an open sound-hard crack from phaseless data Yuanfeng Qu and Heping Dong Factorization method for near-field inverse scattering problems in elastodynamics Chun Liu, Guanghui Hu, Tao Yin and Bo Zhang Grouped tensor low-rank representation for multi-dimensional image recovery Jun-Xian Kuang, Sheng Liu, Xi-Le Zhao, Ben-Zheng Li and Xiu-Fen Fang Imaging the buried sources in a two-layered medium from the upper far-field patterns Yan Chang, Yukun Guo and Yue Zhao Electrical properties reconstruction from MRI data: theoretical and numerical aspects Stephanie Lohrengel, Charlotte Milano and Stéphanie Salmon Read more articles here: https://www.aimsciences.org/ipi/article/2026/23/0 ------------------------------------------------------- From: Charley Denton cdenton@aimsciences.org Date: March 20, 2026 Subject: Contents, AIMS New Volume: MCRF Vol. 18 Mathematical Control and Related Fields Volume: 18 September 2026 https://www.aimsciences.org/mcrf/article/2026/18/0 Trajectory tracking problem for a class of 2-D hyperbolic PDEs Mustapha El Hassani, Abdelhadi Elharfi and Samir El Mourchid Beyond the Givone-Roesser/Fornasini-Marchesini models: A universal input/state/output model for 2-D systems Debasattam Pal, Eva Zerz and Paula Rocha Turnpike properties for stochastic pension fund control problems Xiaoqing Liang, Jingrui Sun and Shaodi Sun Existence of eigensets for bilinear control systems Eduardo Celso Viscovini Optimal control of the Navier-Stokes equations via pressure boundary conditions Boris Vexler and Jakob Wagner Topological optimization and boundary observation for clamped plates Cornel Marius Murea and Dan Tiba McKean-Vlasov stochastic variational inequalities with oblique subgradients and propagation of chaos Shimeizi Duan and Zhen Wu Read more articles here: https://www.aimsciences.org/mcrf/article/2026/18/0 ------------------------------------------------------- End of Digest **************************