Subject: NA Digest, V. 21, # 25 NA Digest Tuesday, July 06, 2021 Volume 21 : Issue 25 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: New Book, Sparse Solutions of Underdetermined Linear Systems Ghana Numerical Analysis Day, ONLINE, Aug 2021 Applied and Industrial Mathematics, Germany, Oct 2021 Optimization and Market Design, ONLINE, Oct 2021 Young Mathematicians in Model Order Reduction, Germany, Mar 2022 Facullty Position, Data-driven Computational Modeling, KU Leuven Tenure Track Faculty Positions. Univ Nacional de Colombia. Tenure Track Position, Mathematical Epidemiology, UHasselt, Belgium Tenure Track Position, Uncertainty Quantification, KIT Postdoc Position, Applied Mathematics, Imperial College London Postdoc Position, Texas A&M Univ-San Antonio Praedoc Position, Data Science, University of Vienna Graduate Research Position, Deep Learning, Los Alamos PhD Position, Fractional Differential Equations PhD Positions, Computer Science, Univ of Pisa, Florence and Siena PhD Positions, Mathematics and Computer Science, Univ of Pisa CFP, Intl J on Geomathematics Contents, Adv. Comput. Math., 47 (3) Contents, Applied and Computational Mathematics, 20 (2) Subscribe, unsubscribe, change address, or for na-digest archives: http://www.netlib.org/na-digest-html/faq.html Submissions for NA Digest: http://icl.utk.edu/na-digest/ ------------------------------------------------------- From: Kris ONeill [log in to unmask] Date: June 28, 2021 Subject: New Book, Sparse Solutions of Underdetermined Linear Systems Sparse Solutions of Underdetermined Linear Systems and Their Applications by Ming-Jun Lai and Yang Wang This textbook presents a special solution to underdetermined linear systems where the number of nonzero entries in the solution is very small compared to the total number of entries. This is called a sparse solution. Since underdetermined linear systems can be very different, the authors explain how to compute a sparse solution using many approaches. The book contains 64 algorithms for finding sparse solutions of underdetermined linear systems and their applications for matrix completion, graph clustering, and phase retrieval, and provides a detailed explanation of these algorithms including derivations and convergence analysis. Exercises for each chapter help readers understand the material. SIAM bookstore: https://my.siam.org/Store/Product/viewproduct/?ProductId=37680110 2021 / xviii + 439 pages / Softcover / 978-1-611976-50-2 / List $89.00 / SIAM Member $62.30 / OT170 ------------------------------------------------------- From: Stephen Moore [log in to unmask] Date: July 02, 2021 Subject: Ghana Numerical Analysis Day, ONLINE, Aug 2021 Ghana Numerical Analysis invites you to its maiden Ghana Numerical Analysis Day (ONLINE) from August 25-26, 2021. The goal of this workshop is to inform about research activities in the areas of numerical analysis and applied mathematics. Students, post-docs, faculty and scientists from Ghanaian universities and other research institutions are invited to present their results/interests and discuss their ideas. Apart from strengthening already established contacts, this workshop also hopes to provide an opportunity to start new collaborations. It will be a two-day event with contributed talks of 20 minutes including questions and 5 minutes for Poster presentation. There is no registration fee, however, all interested participants are required to register. Registration to participate via online platform and to receive the link is open on the workshop website via https://sites.google.com/view/ghananumericals/workshops-conferences/ghana-numerical- analysis-day-2021 The application deadline is August 14, 2021. ------------------------------------------------------- From: Bernd Simeon [log in to unmask] Date: July 02, 2021 Subject: Applied and Industrial Mathematics, Germany, Oct 2021 The first Kaiserslautern Applied and Industrial Mathematics Days - KLAIM will take place in Kaiserslautern, Germany, from October 11-13, 2021. The purpose of this workshop is to provide a forum for applied mathematicians from academia, research labs and industry to exchange ideas and to showcase recent results. Hosted jointly by the Fraunhofer- Institute for Industrial Mathematics and the Department of Mathematics at the TU Kaiserslautern, the event is planned on-site. Provisions for a hybrid format will be made to bring together "roomies and zoomies" if the ongoing COVID-19 pandemic necessitates this. Plenary speakers: Annalisa Buffa (EPF Lausanne), Olivier Bruls (Liege Universite), Dimitris Bertsimas (MIT Boston), Dick den Hertog (Tilburg University), Mario Ohlberger (Universitat Munster). The program will be structured along the three tracks - Hybrid System Simulation - Classic Modeling and Control Meet Artificial Intelligence, with track plenaries given by Martin Arnold (Martin- Luther-Universitat Halle-Wittenberg), Matthias Gerdts (Universitat BW Munchen), Claudia Schillings (Universitat Mannheim) - Multiscale Methods and Model Order Reduction, with track plenaries given by Francisco Chinesta (ENSAM Institute of Technology Paris), Nicole Marheineke (Universitat Trier) - Integration of Optimization and Data Science, with track plenary given by Alexander Martin (Friedrich-Alexander-Universitat Erlangen- Nurnberg). Submission of abstracts: July 30th, 2021 Notification of acceptance: August 20th, 2021 Registration and payment of conference fee: September 10th, 2021 Find out more at: https://www.itwm.fraunhofer.de/klaim ------------------------------------------------------- From: Volker Schulz [log in to unmask] Date: July 02, 2021 Subject: Optimization and Market Design, ONLINE, Oct 2021 Data intensive firms like Uber, AirBnB, Deliveroo and the European Electricity Markets play the role of market makers connecting buyers with sellers. They must, among other things, monitor quality, standardize offerings so as to operate at scale, determine prices and facilitate search. Optimization plays a fundamental role in the design of the rules of a marketplace. What distinguishes the optimization problems in this setting from classical resource allocation problems is the role of incentives. How should they be incorporated into optimization models? The ALOP (DFG Research Training group 2126 "Algorithmic Optimization") Autumn School on "Optimization and Market Design", taking place Oct. 3 - Oct. 7, 2021, will provide an overview of the mathematical challenges that such questions present from some of the leading authorities on the subject: - Rakesh V. Vohra (UPenn) "Allocating Indivisible Goods" - Moshe Babaioff (Microsoft Research) "How to Maximize Profit When Selling Multiple Items?" - Garrett van Ryzin (Amazon's Supply Chain Optimization Technologies) "Minimum Earnings Regulation and the Stability of Marketplaces" - Martin Bichler (TU Munich) "Equilibrium Computation in Markets" Due to the current circumstances, the autumn school will take place online via Zoom meetings. Registration and participation is free of charge. The registration deadline is August 30th, 2021. We also plan to have a poster session and a poster award. All relevant information, updates and registration information can be found at https://alop.uni-trier.de/event/autumn-school-on-optimization-and-market-design/ ------------------------------------------------------- From: Hendrik Kleikamp [log in to unmask] Date: July 02, 2021 Subject: Young Mathematicians in Model Order Reduction, Germany, Mar 2022 We are happy to announce the Young Mathematicians in Model Order Reduction (YMMOR) conference taking place in Munster, Germany, on March 21-25, 2022. The YMMOR conference aims at bringing together early career researchers that are working in the broad field of Model Order Reduction and related topics. Therefore, the focus of the conference is to foster scientific exchange and networking among PhD students, master students, and early postdocs. For more information please visit https://www.uni-muenster.de/MathematicsMuenster/events/2022/YMCN-model-order- reduction.shtml or contact us directly via [log in to unmask] Registration is already open under https://wwuindico.uni-muenster.de/event/680/ You are welcome to share this announcement and display the poster (available on our webpage) at your institute. ------------------------------------------------------- From: Panos Patrinos [log in to unmask] Date: June 28, 2021 Subject: Facullty Position, Data-driven Computational Modeling, KU Leuven The Department of Electrical Engineering (ESAT) at KU Leuven is seeking to fill a full-time position of a tenure-track assistant professor in "data- driven computational modelling of dynamical systems in health and industry". The successful candidate will join the STADIUS Center for Dynamical Systems, Signal Processing, and Data Analytics. The research activities of ESAT-STADIUS are in the wide domain of mathematical engineering. Starting from fundamental research and insights in (multi-)linear algebra, statistics and optimization, numerical algorithms are developed for data-based dynamical system modeling, with linear (such as subspace identification) and machine learning approaches (such as least squares support vector machines). These models are used for control, prediction, monitoring, anomaly detection, etc. The resulting algorithms are deployed in a wide range of 'big data' settings, namely decision support platforms with applications in industry 4.0 and health 2.0. As a new PI in ESAT-STADIUS, your research program will align with this background and tradition, and you will be given the opportunity to establish a personalized, impactful strategic basic research program in mathematical engineering, that should lead to applications in aforementioned areas. Within this targeted area of research, your research program provides evidence of originality and promise. You will strive for excellence in your scholarly research: publish at the highest academic level, initiate national and international collaboration, obtain competitive research funding, attract and supervise doctoral students. You will endorse the international research strategy and contribute to the further strengthening of the scientific reputation of ESAT-STADIUS. KU Leuven is committed to creating a diverse environment and is therefore an equal opportunity employer. It explicitly encourages candidates from groups that are currently underrepresented at the university to submit their applications. For detailed information, please visit: https://www.kuleuven.be/personeel/jobsite/jobs/60022085?hl=en&lang=en Application deadline: August 18, 2021. ------------------------------------------------------- From: Fernando A Morales [log in to unmask] Date: June 28, 2021 Subject: Tenure Track Faculty Positions. Univ Nacional de Colombia. The School of Mathematics from Universidad Nacional de Colombia, Sede Medellin (National University of Colombia at Medellin) opens two Tenure Track faculty positions for Assistant and/or Associate level, starting February 2022. We are looking for candidates with solid background in one or more of the following areas: Computer Science, Probability, Cryptography, Applied Combinatorics, Algorithms and Discrete Optimization. More details can be found in https://www.medellin.unal.edu.co/noticias/Concurso-Profesoral-FC-2021.html (Although the candidates are not expected to know Spanish at the time of application, it is highly recommendable to ask for a translator services given that the process and the application forms are written in Spanish.) ------------------------------------------------------- From: Fred Vermolen [log in to unmask] Date: July 05, 2021 Subject: Tenure Track Position, Mathematical Epidemiology, UHasselt, Belgium There is a tenure track position at the Mathematics and Statistics department at the University of Hasselt in Belgium. The position is for an applied mathematician with interest and background in mathematical epidemiology. UHasselt is located in the Eastern part of Flanders near the universities of Leuven, Maastricht (Netherlands), Eindhoven (Netherlands), Aachen (Germany) and Liege. Command of the Dutch language is an advantage. More information can be found on https://www.uhasselt.be/vacatures_detail?taal=01&vacid=2266 ------------------------------------------------------- From: Tobias Jahnke [log in to unmask] Date: June 30, 2021 Subject: Tenure Track Position, Uncertainty Quantification, KIT Karlsruhe Institute of Technology invites applications for a tenure-track professorship (W1) for uncertainty quantification. The focus of this professorship is the development of new mathematical methods for the quantification of uncertainties by combining computational models and data. Employment will initially be for a period of six years. If the final tenure evaluation is positive, the successful candidate will be promoted to the rank of tenured full professor (W3). Deadline for applications is July 18, 2021. More information about the position and how to apply can be found here: https://www.pse.kit.edu/karriere/joboffer.php?id=158&language=en&new=true ------------------------------------------------------- From: Dante Kalise [log in to unmask] Date: June 28, 2021 Subject: Postdoc Position, Applied Mathematics, Imperial College London We are advertising a 3-years postdoctoral research associate position at Imperial College London, Applied Mathematics Section, to work on topics related to hybrid control, optimisation, and/or scientific machine learning. The position is funded by the UK Engineering and Physical Sciences Research Council through the project Elastic Manufacturing Systems - A Platform for Dynamic, Resilient, and Cost-effective Manufacturing Services (EP/T024429/1). All the relevant details for this call can be found at: https://www.imperial.ac.uk/jobs/description/NAT00944/research-associate-applied- mathematics-optimisationcontrolsciml For questions regarding the post, please contact Dante Kalise ([log in to unmask]). Application deadline 12 July. ------------------------------------------------------- From: Burak Aksoylu [log in to unmask] Date: July 01, 2021 Subject: Postdoc Position, Texas A&M Univ-San Antonio The Department of Mathematical, Physical, and Engineering Sciences at Texas A&M University-San Antonio seeks a full-time postdoctoral researcher appointment beginning on August 19, 2021. Candidates should also demonstrate the ability to publish research outcomes and writing grant proposals. Successful candidates will carry a 1+2 teaching workload for the fall and spring semesters. The mentors of the postdoctoral fellow will be Drs. Burak Aksoylu and Kun Gou. The research topic involves mathematical and numerical aspects of nonlocal formulations applied to peridynamics, fracture mechanics, soft tissue mechanics, and solid mechanics at large. A background in computational mathematics and/or computational mechanics is desired. The ability to program in C, C++, Python, Matlab, or Mathematica is a plus. This is a one-year position and if the external grant proposals are successful the position may be renewed, but renewal is not guaranteed. The salary is $45,000 for 12 months. Review of applications will begin immediately and the position is open until filled. Finalists must request at least two current letters of recommendation to be sent directly by the authors to the Search Committee Chair, Dr. Burak Aksoylu, One University Way, SciTech 311, San Antonio, Texas 78224 via USPS or email to [log in to unmask] ------------------------------------------------------- From: Thilo Hofman [log in to unmask] Date: June 30, 2021 Subject: Praedoc Position, Data Science, University of Vienna The University of Vienna seeks to fill the position as soon as possible of a University Assistant (prae doc) at the Research Platform The Challenge of Urban Futures: governing the complexities in European cities. Urban Futures is a University of Vienna funded Research Platform striving to govern the challenges of the future of European cities. We search for a PhD student at the exiting interface of Environmental Science and Pollution Research with Advanced Computational Science / Data Science. Hosted by the Urban Futures Platform, the successful candidate will be embedded in an active and international leading research team linked to the Department of Environmental Geosciences and the Research Network Data Science. The successful candidate will be assigned to both the Urban Futures Research Platform and the Department of Environmental Geosciences. For more information go to the Jobcenter of the University of Vienna. Link: https://univis.univie.ac.at/ausschreibungstellensuche/flow/bew_ausschreibung-flow? _flowExecutionKey=_cAE266FAE-F96B-C2ED-1B8E-93DE2EF955DE_k14202\ D1F-5C19-F3E8-731D-5B1560637C19&tid=84731.28 ------------------------------------------------------- From: Youzuo Lin [log in to unmask] Date: June 30, 2021 Subject: Graduate Research Position, Deep Learning, Los Alamos Apologies for any cross-posting. Please share with any students who might be interested in our opening of Deep Learning Graduate Research Associate described below. We have an immediate opening for a creative and resourceful Deep Learning Graduate Research Associate with strong computational skills and experience in any of the following areas including computational imaging, inverse problems, and/or computer vision. We are seeking a highly motivated individual to join a multidisciplinary research team consisting of machine learning scientists, computational scientists, and domain experts to conduct cutting-edge machine learning research for computational imaging, with application to the geoscience, material, and other scientific domains. Minimum Job Requirements: Strong computational science and numerical optimization skills, in particular, computational imaging, inverse problems, and computer vision; Strong deep learning skills and practical experience in various neural network architectures (DNN, CNN, RNN/LSTM, GAN, or other auto-encoder); Practical experience with machine learning packages such as PyTorch, TensorFlow, Keras, etc.; Code development and computational experience in using high-performance parallel computing resources; Solid publication record in high-impact journals, top-tier machine learning, and related conferences; Excellent communication, writing, and oral presentation skills; and Strong programming skills, in Python in particular. Desired Skills: Demonstrated ability to work creatively and independently and in a team environment. Minimum Education: Completion of a Master's degree in Computer Science, Electrical Engineering, Applied Mathematics, Computational Sciences, or a related field within the past 3 years. Cumulative GPA of at least 3.2 is required. To apply, please search for IRC86144 under https://www.lanl.gov/careers/; or use the following direct link to the position: https://lanl.jobs/los-alamos-nm/deep-learning-graduate-research- associate/0249C2BCCB5040E4B0943C7C0118DE6E/job/ Additional information about this position can be obtained by contacting Dr. Youzuo Lin ([log in to unmask]) and Dr. Brendt Wohlberg ([log in to unmask]). ------------------------------------------------------- From: Kai Diethelm [log in to unmask] Date: June 29, 2021 Subject: PhD Position, Fractional Differential Equations The Faculty of Applied Natural Sciences and Humanities at the University of Applied Sciences Wurzburg-Schweinfurt has an open position for a Ph. D. student who is interested in working on a project devoted to the study of fractional ordinary differential equations, in particular regarding the long-term behaviour of their solutions. The position will be assigned to our campus in the city of Schweinfurt. It is on the E13 level of the German Civil Service pay scale (TV-L) and will be available from October 1st, 2021, for a period of 3 years. Initially it will only be a part-time position (50%). However, we are currently actively looking for opportunities to convert it into a 75% or 100% position as soon as possible. The successful candidate should hold a Master's degree (or equivalent) in mathematics or a related subject. For further information, please contact me at kai.diethelm (at) fhws.de ------------------------------------------------------- From: Antonio Frangioni [log in to unmask] Date: June 28, 2021 Subject: PhD Positions, Computer Science, Univ of Pisa, Florence and Siena The call for applications for 19 scholarships for Ph.D. School in Computer Science at the Universities of Pisa, Florence and Siena is open: https://dottorato.unipi.it/index.php/en/application-process-for-the-academic-year-2021- 2022/item/574.html Applicants are welcome with interest in all areas of computer science, data science, AI/ML, numerical analysis, and operations research. Please note that the 19 scholarships are presented in one call for 13 "genera" scholarships (INFO01) e in other six calls (INFO02-INFO07), each for a thematic scholarship, but candidates can apply to any subset of the calls by paying a single application tax. Important dates: - Deadline to apply: July 16th, 2021 at 1 pm CET - The oral interviews will be held in the first half of September - Scholarships and activities will start on November 1st, 2021 Web site of the Ph.D. School: https://dottorato.di.unipi.it/ ------------------------------------------------------- From: Federico Poloni [log in to unmask] Date: June 29, 2021 Subject: PhD Positions, Mathematics and Computer Science, Univ of Pisa The University of Pisa offers various Ph.D. scholarships, among which: - 13 positions in Computer Science (shared with the Universities of Florence and Siena); - 6 positions in Mathematics. Admitted students can conduct research under the supervision of professors and researchers of their choice from the two departments. 7 additional scholarships (6 in CS, 1 in math) are offered to work on specific themes. Applications must be submitted before July 16, 13:00 CEST. Applicants must either already have a Master's degree, or obtain one by October 31, 2021. Activities for the admitted students will start on November 1, 2021. Further information on https://dottorato.unipi.it/index.php/en/application-process-for-the-academic-year-2021- 2022/item/574.html ------------------------------------------------------- From: Vadym Aizinger [log in to unmask] Date: June 30, 2021 Subject: CFP, Intl J on Geomathematics GEM - International Journal on Geomathematics invites you to submit to the Topical Collection "Numerical Methods for Global and Regional Ocean Modeling" edited by Vadym Aizinger, Tuomas Karna, Daniel Le Roux and Y. Joseph Zhang, which provides an overview of the progress in this rapidly developing area, to identify current challenges, and to present and discuss promising approaches. The topics covered include but are not limited to the design and analysis of novel discretization schemes for the hydrodynamics and other relevant physical processes, development of inverse and reduced order models, application of stochastic techniques, adaptivity, model coupling, and other mathematical and numerical methodologies relevant to the area of ocean modeling. In addition, submissions of overview papers reporting on significant conferences in the field are highly encouraged. The submission Deadline has been extended until October 31st, 2021; please feel free to forward this "Call for Papers" to other colleagues active in this area. Link to the announcement on the journal homepage: https://link.springer.com/collections/ejgjecagbj ------------------------------------------------------- From: Alex Barnett [log in to unmask] Date: June 29, 2021 Subject: Contents, Adv. Comput. Math., 47 (3) Advances in Computational Mathematics Volume 47, issue 3, June 2021: Cs-smooth isogeometric spline spaces over planar bilinear multi-patch parameterizations, Mario Kapl, Vito Vitrih A priori error analysis for a finite element approximation of dynamic viscoelasticity problems involving a fractional order integro-differential constitutive law, Yongseok Jang, Simon Shaw Zeta correction: a new approach to constructing corrected trapezoidal quadrature rules for singular integral operators, Bowei Wu, Per-Gunnar Martinsson Multivariate quadrature of a singular integrand, Kendall Atkinson, David Chien, Olaf Hansen Structure-preserving interpolation of bilinear control systems, Peter Benner, Serkan Gugercin, Steffen W. R. Werner A fast sparse spectral method for nonlinear integro-differential Volterra equations with general kernels, Timon S. Gutleb A characteristic finite element method for the time-fractional mobile/immobile advection diffusion model, Huan Liu, Xiangcheng Zheng, Chuanjun Chen, Hong Wang A hybrid collocation-perturbation approach for PDEs with random domains, Julio E. Castrillon-Candas, Fabio Nobile, Raul F. Tempone Reconstruction of low-rank aggregation kernels in univariate population balance equations, Robin Ahrens, Sabine Le Borne Second-order accurate and energy stable numerical scheme for an immiscible binary mixture of nematic liquid crystals and viscous fluids with strong anchoring potentials, Yubing Sui, Jingzhou Jiang, Guigen Jin, Xiaofeng Yang An hp-version Legendre spectral collocation method for multi-order fractional differential equations, Yuling Guo, Zhongqing Wang A space-time certified reduced basis method for quasilinear parabolic partial differential equations, Michael Hinze, Denis Korolev Pointwise error estimate in difference setting for the two-dimensional nonlinear fractional complex Ginzburg-Landau equation, Qifeng Zhang, Jan S. Hesthaven, Zhi-zhong Sun, Yunzhu Ren Convergence analysis of the scaled boundary finite element method for the Laplace equation, Fleurianne Bertrand, Daniele Boffi, Gonzalo G. de Diego Convex combination of alternating projection and Douglas-Rachford operators for phase retrieval, Nguyen Hieu Thao, Oleg Soloviev, Michel Verhaegen A quadratic finite volume method for nonlinear elliptic problems, Yuanyuan Zhang, Chuanjun Chen, Chunjia Bi Variational Bayesian inversion for the reaction coefficient in space-time nonlocal diffusion equations, Xiaoyan Song, Guang-Hui Zheng, Lijian Jiang Residual-type a posteriori error analysis of HDG methods for Neumann boundary control problems, Haitao Leng, Yanping Chen ------------------------------------------------------- From: Fikret Aliev [log in to unmask] Date: June 29, 2021 Subject: Contents, Applied and Computational Mathematics, 20 (2) Applied and Computational Mathematics an International Journal, www.acmij.az Vol.20, No.2, June 2021 CONTENTS Spectral Methods Combined with Operational Matrices for Fractional Optimal Control Problems: A Review, E. Ashpazzadeh, M. Lakestani, A. Fatholahzadeh Series Expansion, Asymptotic Behavior and Computation of the Values of the Schwarzschild-Milne Integrals Arising in a Radiative Transfer, Y. Aygar, E. Bairamov The Single-Step Preconditioned HSS Method for Singular Linear Systems, C.-L. Li, C.F. Ma Dynamics of an Age-Structured HIV Model with Super-Infection, L. Cai, J. Liu, Y. Chen Artificial Intelligence to Classify Human Lung Carcinoma Using Blood Plasma FTIR Spectra, O.K. Gasymov, A.H. Aydemirova, L.A. Melikova, J.A. Aliyev Uncertain External Perturbation and Mixed Time Delay Impact on Fixed- Time Synchronization of Discontinuous Neutral-Type Neural Networks, F.C. Kong, R. Sakthivel On the Solutions of Fractional Differential Equations via Geraghty Type Hybrid Contractions, R.S. Adiguzel, U. Aksoy, E. Karapinar, I.M. Erhan ------------------------------------------------------- End of Digest **************************