Subject: NA Digest, V. 21, # 11 NA Digest Sunday, March 28, 2021 Volume 21 : Issue 11 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Wayne Cowell (1926 - 2021) East Coast Optimization Meeting, ONLINE, Apr 2021 CRM School, Multiphysics Solvers, ONLINE, May-Jun 2021 SIAM Geosciences, ONLINE, Jun 2021 NUMDIFF-16, Germany, Sep 2021 Assistant Professor Position, Applied Maths and Analysis, Canada Research Assistant Position, Applied Mathematics, WIAS, Germany Research Associate Position, Mahindra Univ, India Research Associate Position, SISSA MathLab, Italy Postdoc Position, Algebraic Spline Geometry, Swansea Univ Postdoc Position, Analysis of Neural ODEs, Sandia NL Postdoc Position, HPC/NA, Max Planck (MPCDF), Germany Postdoc Position, NSF Research Fellowship, Morgan State Univ Postdoc Positions, Numerical PDEs, Univ of Montpellier Research Associate Position, Multiscale Simulations, UK PhD/Postdoc Postion, High Performance Computing PhD Position, Applied Mathematics, WIAS, Germany PhD Position, ML for Atomistic Models, Skoltech, Moscow PhD Position, Port-Hamiltonian Systems, Univ of Stuttgart PhD Position, Time-Discretization, Univ of Stuttgart, Germany PhD Position, Uncertainty Quantification, Radboud Univ PhD Positions, Mathematics, Univ of Munster PhD Positions, Optimization, Data-driven Modeling and ML Contents, Comm on Applied Mathematics and Comp, 3(1) 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: Jorge J More [log in to unmask] Date: March 22, 2021 Subject: Wayne Cowell (1926 - 2021) Dr. Wayne Cowell, a member of the Mathematics and Computer Science Division at Argonne National Laboratory for most of his professional life, passed away February 24, 2021. During that time he made a lasting impact on computational science and on the scientists around him. In 1971 Wayne convinced the National Science Foundation to fund the National Activity to Test Software (NATS) project between Argonne and two universities: Stanford and the University of Texas at Austin. The plan was to produce a set of subroutines with a uniform style and naming convention. The subroutines would be based on the best available algorithms, implemented at Argonne, and distributed to test sites. Once the testing was completed, the subroutines were certified as being robust, reliable, and portable. These ideas were new in 1971. The NATS project produced the EISPACK and FUNPACK packages. The success of this project laid the groundwork for Argonne's reputation as a center for the development of high-quality numerical software. Wayne is remembered as a kind, considerate colleague and a promoter of mathematical software by the visitors to Argonne. His success in promoting collaboration between Argonne and other research institutions was key to the development of mathematical software. Wayne edited the book "Sources and Development of Mathematics Software" that details many of the lessons learned during the early years. If you want to know more about Wayne's work google "Oral History Wayne Cowell". Jack Dongarra, Jorge More, Brian Smith ------------------------------------------------------- From: Harbir Antil [log in to unmask] Date: March 26, 2021 Subject: East Coast Optimization Meeting, ONLINE, Apr 2021 This is let you know that the schedule of (Virtual) East Coast Optimization Meeting (ECOM) 2021 is now available online on the workshop website. The focus of this year's meeting is "Optimization for Machine Learning" Keynote Lecturers - Frank E. Curtis (Lehigh University) - Wotao Yin (UCLA) Invited Guest Speakers - Stefanie Guenther (Lawerence Livermore Lab) - Patrick O'Neil (BlackSky) - Chris Teixeira (MITRE Corporation) - Madeleine Udell (Cornell University) Contributed Talks (22 total): Mostly from students, postdocs and early career researchers. If you haven't registered already, and would like to attend, we request that you do so here: math.gmu.edu/~hantil/ECOM/2021/registration_form.html Please note that everyone is welcome to attend but registration is mandatory to get the zoom link. ------------------------------------------------------- From: Felix Kwok [log in to unmask] Date: March 26, 2021 Subject: CRM School, Multiphysics Solvers, ONLINE, May-Jun 2021 The Centre de recherches mathematiques (CRM) and Universite Laval are pleased to announce the 2021 CRM Summer School "Solving large systems efficiently in multiphysics numerical simulations", which will take place ONLINE from May 31 to June 10, 2021. The goal of this summer school is to introduce fundamental solver techniques for dealing with large-scale coupled problems in numerical simulations. Participants will be expected to have a working understanding of linear algebra, differential equations (ordinary and partial) and basic Fourier analysis, roughly at the undergraduate level. The theoretical portion will consist of the following three mini-courses, which will be accompanied by exercise sessions: - Stationary Methods and Multiphysics (Hamdi Tchelepi and Felix Kwok) - Domain Decomposition Methods (Victorita Dolean) - Multigrid Methods (Scott MacLachlan) In addition, there will be seminar talks on advanced techniques and applications by four invited speakers (Andrea Franceschini, Louis Poirel, Carmen Rodrigo and Julien Salomon). All lectures will be given in English. The summer school is free of charge, but prior registration is required. To register and to find out more about the summer school program, please visit our website at http://www.crm.umontreal.ca/2021/EELaval21/index_e.php Registration will be open until May 25, 2021. The summer school is organized by Vivien Clauzon (Michelin), Jean Deteix (Laval), Felix Kwok (Laval) and Scott MacLachlan (Memorial University of Newfoundland). ------------------------------------------------------- From: Alessio Fumagalli [log in to unmask] Date: March 23, 2021 Subject: SIAM Geosciences, ONLINE, Jun 2021 We wish to inform you that registration to the SIAM Conference on Mathematical and Computational Issues in the Geosciences, which will be held online in the period 21-24th June 2021, is now open. The conference is organised by SIAM and Politecnico di Milano. Information on the fees and how to register is available in https://www.mate.polimi.it/siamgs21/. The conference will use the Vfairs platform, https://www.vfairs.com/, which allows synchronous and asynchronous interaction among participants. The conference platform will remain open to the registered participants for one month after the conference. The conference will host six plenary presentations, the talks by the recipients of the Career and Early Career SIAM Group on Geosciences Prize, 3 minitutorials, more than one hundred minisymposia and contributed sessions and poster sessions, covering different aspects of mathematical and computational aspects of geosciences. You may find more information on https://www.siam.org/conferences/cm/conference/gs21. We invite you to participate in this successful conference. For any query, please contact [log in to unmask] The SIAMGS21 local organizing committee, Politecnico di Milano, Italy. ------------------------------------------------------- From: Helmut Podhaisky [log in to unmask] Date: March 26, 2021 Subject: NUMDIFF-16, Germany, Sep 2021 NUMDIFF-16 on Numerical Solution of Differential and Differential-Algebraic Equations 6 - 10 September 2021, Martin Luther University Halle-Wittenberg (Germany) We are planning to hold NUMDIFF-16 as on-site conference enriched with a few remote talks. Plenary speakers: Sebastiano Boscarino (Catania), Chris Budd (Bath), Dajana Conte (Salerno); Michael Dumbser (Trento), Ulrik Skre Fjordholm (Oslo), Maren Hantke (Halle); Gabriel Lord (Nijmegen), Klas Modin (Gothenburg), Sina Ober-Blobaum (Paderborn); Brynjulf Owren (Trondheim), Gianluigi Rozza (Trieste), Ari Stern (St Louis); Katharina Schratz (Paris), Gilles Vilmart (Geneva). Minisymposia: Numerical methods in fractional calculus, organised by Roberto Garappa (Bari); ODE and SDE methods in machine learning, organised by Benedict Leimkuhler (Edinburgh); Numerical Methods for Stochastic Evolution Equations, organised by Raphael Kruse (Halle); Fluid dynamics: innovative discretisations and algorithms, organised by Colin Cotter (London). Details: https://sim.mathematik.uni-halle.de/numdiff/Numdiff16 ------------------------------------------------------- From: Tony Ware [log in to unmask] Date: March 21, 2021 Subject: Assistant Professor Position, Applied Maths and Analysis, Canada The Department of Mathematics and Statistics at the University of Calgary invites applications from outstanding candidates for a tenure-track position at the rank of Assistant Professor, with an anticipated start date commencing on or after July 1, 2021. We encourage applications from candidates in all areas of applied mathematics and analysis, including dynamical systems, numerical analysis, differential equations or optimisation. We are particularly interested in those with a demonstrated interest in/expertise in/potential for interdisciplinary research in areas related to 'the mathematics of planet earth', and in potential collaborations with disciplines such as environmental/ earth sciences, engineering, natural/biological sciences or geophysics. Further details about the position and how to submit an application may be found on MathJobs: https://www.mathjobs.org/jobs/list/17396. The deadline for applications to receive full consideration is 9th April, 2021. ------------------------------------------------------- From: Heike Sill [log in to unmask] Date: March 22, 2021 Subject: Research Assistant Position, Applied Mathematics, WIAS, Germany WIAS invites applications for a Research Assistant position (f/m/d) (Ref. 21/08) in the Research Group 'Interacting Random Systems' (Head: Prof. Dr. W. Konig) starting at the earliest possible date. The task is to analyze stochastic models for the dynamics and statics of large interacting systems to support and complement the research directions in the group. We would like the successful candidate to develop contacts to other groups in the Institute. The Institute would support the acquisition of experience with third-party funding, teaching and research supervision in preparation for a professorship. A completed undergraduate education to Master's level and a Ph.D. (or equivalent experience) in mathematics or a closely related field is expected. Experience in the areas of large deviations; statistical physics and phase transitions; Markov jump processes will strengthen your application. See here for more information: https://short.sg/j/9473020 ------------------------------------------------------- From: Ranjith Kunnath [log in to unmask] Date: March 24, 2021 Subject: Research Associate Position, Mahindra Univ, India Applications are invited for the post of Research Associate (RA) in a project sponsored by the National Supercomputing Mission (NSM) entitled '3D elastodynamic fracture simulations' supervised by Prof. Ranjith Kunnath. NSM is a joint initiative of the Department of Science and Technology (DST) and Ministry of Electronics and Information Technology (MeITY). Eligibility: Ph.D. in Engineering/Mathematics/Physics with background in the area of Applied Mechanics and/or High Performance Computing Fellowship: Upto Rs. 54,000 + 24 % HRA per month, depending on qualification and experience Candidates with M.E/M.Tech. with 3 years experience in the area of Applied Mechanics and/or High Performance Computing and at least one publication in a Science Citation Indexed (SCI) journal can also be considered at a lower fellowship rate. Project duration: 2 years Interested candidates can send their CV and relevant details to [log in to unmask] For more information, visit the webpages http://ranjithkunnath.in/ and http://www.mahindrauniversity.edu.in/. ------------------------------------------------------- From: Gianluigi Rozza [log in to unmask] Date: March 25, 2021 Subject: Research Associate Position, SISSA MathLab, Italy A new open position (12 months, renewable) as research associate at SISSA, International School for Advanced Studies, Trieste, Italy (mathlab.sissa.it) is available with deadline April 2, 2021 at 1pm (Rome time): https://www.sissa.it/bandi/selezione-pubblica-titoli-conferimento-di-n-1-assegno-di- ricerca-area-matematica-ref-prof-10 The position is at SISSA mathLab, PI Gianluigi Rozza (https://people.sissa.it/~grozza/) and funded by Dompe: https://www.dompe.com. The position is expected to start as soon as filled. The project is focused on mathematical modelling and numerical simulation of complex CFD industrial problems. Field of the research activity: CFD, control, design, optimisation, model reduction, data assimilation, machine learning, artificial intelligence, HPC. Competences: numerical analysis, scientific computing and programming, advanced CFD, automatic learning. Please disseminate the info and contact me for further questions. ------------------------------------------------------- From: Nelly Villamizar [log in to unmask] Date: March 23, 2021 Subject: Postdoc Position, Algebraic Spline Geometry, Swansea Univ A 2-year Postdoctoral Research Position is now open in connection to the EPSRC project 'Algebraic spline geometry: towards algorithmic shape representation' led by Dr. Nelly Villamizar at the Department of Mathematics in Swansea University. The overarching aim of the project is to develop research at the interface between algebraic geometry, combinatorics, and splines leading to novel approximation methods for representing shapes with complex topology. The post is available from September 1st, 2021. If you are interested or know anyone who might be, please get in touch! E-mail: [log in to unmask] More info: https://sites.google.com/view/algebraic-spline-geometry Job description and application: https://www.jobs.ac.uk/job/CEW793/post-doctoral-research-assistant Closing date April 18th, 2021 ------------------------------------------------------- From: Marta D'Elia [log in to unmask] Date: March 24, 2021 Subject: Postdoc Position, Analysis of Neural ODEs, Sandia NL We are seeking a postdoctoral appointee with strong mathematical and computational background who will pursue research at the intersection of machine learning (ML), uncertainty quantification, and applied mathematics. We seek a creative problem solver with fundamental knowledge in probability theory, differential equations, optimization, and experience in scientific computing, evidenced by publications and codes. The postdoctoral appointee will contribute towards development and deployment of advanced ML methods with connections to random dynamical systems and differential equations. Specific developments include exploring neural networks (NNs) in the continuous-layer limit as differential equations, augmenting NNs with probabilistic weights, as well as crafting advanced regularization and dimensionality reduction methods. The work involves regular interaction with the three-member project team, as well as collaboration with application teams across Sandia. The project is expected to result in publications in peer-reviewed journals and impact in understanding the advantages and limitations of probabilistic NNs viewed as random dynamical systems. Required Qualifications: PhD in the physical sciences, mathematics, engineering, or computer science; Knowledge and expertise in machine learning and numerical methods; Knowledge and expertise in Python and common machine learning libraries. Desired Qualifications: Knowledge and expertise in computational science and software development; Experience in performing collaborative and interdisciplinary research; Excellent verbal and written communication skills. Apply: go to http://www.sandia.gov/careers/students_postdocs/postdocs.html, click 'View All Sandia Openings' and search for Job ID: 675651. Contact: Khachik Sargsyan, [log in to unmask] Marta D'Elia, [log in to unmask] ------------------------------------------------------- From: Markus Rampp [log in to unmask] Date: March 24, 2021 Subject: Postdoc Position, HPC/NA, Max Planck (MPCDF), Germany The Max Planck Computing and Data Facility(MPCDF) in collaboration with the Fritz Haber Institute of the Max Planck Society, is looking for a Computational Scientist or HPC Application Expert (m/f/d). The successful candidate will be associated with the applications group at the MPCDF (based on the research campus Garching near Munich, Germany) and will work on the development and optimization of scientific HPC simulation codes for upcoming Exascale computer architectures, primarily in the field of electronic structure theory and theoretical chemistry, as pursued in the Theory Department of Prof. Karsten Reuter at the Fritz Haber Institute. The applicant should hold a PhD in Physics, Computer Science, applied Mathematics, or a similar subject. A strong background in scientific software development (ideally with modern Fortran or C++), together with common parallel programming models (MPI, OpenMP), and some experience with large, distributed software projects and high-performance computing are required. We offer the opportunity to work on state-of-the-art numerical algorithms, leading HPC codes and latest supercomputer technology and to maintain close collaborations with the scientists and method developers at the Fritz Haber Institute and its international partners. Knowledge in GPU programming, e.g. with CUDA or OpenACC, and basic familiarity with the numerics of electronic-structure theory is considered as a plus, but is not strictly necessary. The full-time position starts as soon as possible and is initially limited for a maximum period of three years. Salary will be based on experience according to the German TVoD. For detailed information please visit https://www.mpcdf.mpg.de/ ------------------------------------------------------- From: Mingchao Cai [log in to unmask] Date: March 23, 2021 Subject: Postdoc Position, NSF Research Fellowship, Morgan State Univ If you are US citizens or permanent residents, you are welcome to apply the NSF Research Fellowships through https://www.nsf.gov/pubs/2021/nsf21573/nsf21573.htm If you would work with me at Morgan State University, please feel free to email me at [log in to unmask] to discuss the details and possibilities. ------------------------------------------------------- From: Daniele Di Pietro [log in to unmask] Date: March 23, 2021 Subject: Postdoc Positions, Numerical PDEs, Univ of Montpellier Applications are invited for post-doctoral research associates in the Numerical Analysis group of the Alexander Grothendieck Institute (University of Montpellier). We are looking for candidates with a solid theoretical background in Numerical Analysis and good programming skills. Several research subjects are available on the development, a priori and a posteriori error analysis of advanced numerical methods for Partial Differential Equations. The starting date can be as early as July, 1st 2021, with a duration of up to 18 months. For further details, contact Prof. Daniele Di Pietro ([log in to unmask]). ------------------------------------------------------- From: Matthew Borg [log in to unmask] Date: March 24, 2021 Subject: Research Associate Position, Multiscale Simulations, UK We are looking to fill a 2-year postdoc position in multiscale rarefied gas flows to be based at the University of Edinburgh. This is part of a 1.2M GBP EPSRC-funded joint research project between Edinburgh University, Glasgow University, and Warwick University, and 4 industrial companies. Deadline to apply: 16 April 2021. More details can be found here: https://elxw.fa.em3.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1001/job/759/ ?utm_medium=jobshare ------------------------------------------------------- From: Hartwig Anzt [log in to unmask] Date: March 22, 2021 Subject: PhD/Postdoc Postion, High Performance Computing We have multiple open positions on the PhD/PostDoc level in the field of numerical linear algebra, high performance computing, and high performance computing applications. Knowledge of C++ is mandatory, experience in sustainable software development (git, CI, unit tests, etc.) is a plus. We are an agile and diverse research group with backgrounds in computer science, mathematics, and computational science, and focus on developing algorithms and applications for the next generation supercomputers. We put a strong emphasis on sustainable software development and disseminate our products as open source community software. We are involved in the German NHR initiative, the EuroHPC initiative, and the US Exascale Computing Project. If you are interested in doing cutting-edge research in high performance computing, working in a collaborative software development, experiencing an international research environment, and contributing to prestigious national and international HPC projects, we would like to see your application. Please send applications along with a detailed CV to [log in to unmask] ------------------------------------------------------- From: Heike Sill [log in to unmask] Date: March 22, 2021 Subject: PhD Position, Applied Mathematics, WIAS, Germany WIAS invites applications for a PhD student position (f/m/d) (Ref. 21/10) in the Research Group 'Numerical Mathematics and Scientific Computing' (Head: Prof. Dr. Volker John, Supervisor: Dr. Alfonso Caiazzo) starting at May 1st, 2021 or at the earliest possible date thereafter. The position is framed within the DFG funded project "Computational Multiscale Methods for the Inverse Estimation of Effective Properties of Poroelastic Tissue", a collaboration between the WIAS and the Chair of Computational Mathematics of the University of Augsburg (Head: Prof. Dr. Daniel Peterseim). The project aims to develop computational multiscale models and inversion algorithms to support modern clinical imaging techniques based on Magnetic Resonance Elastography (MRE). MRE combines magnetic resonance images with mathematical and physical models in order to recover, in vivo and non-invasively, information about the elastic behavior and mechanical parameters of human tissues. The purpose of the project is to develop novel mathematical descriptions of vascularized tissues and efficient computational tools for numerical simulations and for the solution of related inverse problems. The research will build on the existing collaboration with the MRE group at the Department of Radiology of the Charite-Universiatsmedizin Berlin (Prof. Dr. Ingolf Sack) and the Department Diagnostische und Interventionelle Radiologie of the Universitatsklinikum Augsburg (Prof. Dr. med. Thomas Kroncke). We are looking for candidates with a master's degree and a strong background in computational mathematics and scientific computing, with interest in medical applications. Prior knowledge in continuum mechanics, homogenization theory, or finite element methods are beneficial. See here for more information: https://short.sg/j/9472115 ------------------------------------------------------- From: Alexander Shapeev [log in to unmask] Date: March 25, 2021 Subject: PhD Position, ML for Atomistic Models, Skoltech, Moscow A PhD position in the development of machine learning-assisted algorithms for interatomic interaction modeling is open in Alexander Shapeev's group, Skoltech, Moscow, Russia. Research activities include developing, coding, and testing computational methods based on both machine learning and classical modeling. The main requirements are a strong background in computational methods or machine learning, and experience with programming in C/C++ and/or Python. The work will be in close collaboration with materials scientists to jointly validate and apply the developed algorithms. A successfully graduated PhD student will be awarded an internationally recognized PhD degree in Mathematics. English is a working language at Skoltech. The candidates should have at least an upper-intermediate level of English language. The PhD position comes with a scholarship. Applications will be reviewed in two batches (to be reviewed in the first batch the application should be submitted by April 18, for the second batch - till August 1). The starting date of the position is November 1, 2021. The duration of the position is 4 years subject to satisfactory performance. For more details please visit https://sites.skoltech.ru/multiscale/vacancies/ ------------------------------------------------------- From: Benjamin Unger [log in to unmask] Date: March 28, 2021 Subject: PhD Position, Port-Hamiltonian Systems, Univ of Stuttgart We call for applications for a Ph.D. position in the junior research group for dynamical systems within the cluster of excellence simulation technologies (SimTech) at the University of Stuttgart, Germany, to work in the area of energy-based models. Research activities of this Ph.D. position focus on the novel methods to construct physically meaningful models solely from data using the framework of port-Hamiltonian systems. The research tackles a fundamental question: to guarantee the physical behavior of a coupled dynamical system learned from data and (partial) differential equations derived from first-principles. To ensure an efficient evaluation of the resulting systems, the candidate will develop and implement structure- preserving model-order reduction methods. The research results will contribute to a new data-integrated simulation paradigm prevalent in future high-tech initiatives in systems engineering, such as the digital twin methodology. The complete call, including all application details, is posted here: https://www.stellenwerk-stuttgart.de/jobboerse/research-associate-phd-student-position- applied-mathematics-mfd-stuttgart-210312-459812 This open position is expected to be filled as soon as possible. You are welcome to contact Dr. Benjamin Unger ([log in to unmask]) for further information. We accept applications until April 09, 2021. ------------------------------------------------------- From: Benjamin Unger [log in to unmask] Date: March 28, 2021 Subject: PhD Position, Time-Discretization, Univ of Stuttgart, Germany We call for applications for a Ph.D. position in the junior research group for dynamical systems within the cluster of excellence simulation technologies (SimTech) at the University of Stuttgart, Germany, to work in the area of numerical analysis for semi-explicit time-discretization methods. Research activities of this Ph.D. position focus on the development and analysis of time-integration schemes for coupled partial differential equations (PDEs) that describe the deformation of a porous media saturated by fluid networks. The research results will contribute to user- friendly and at the same time highly optimized time-stepping schemes that serve as a key enabler for 3-dimensional applications. The expected analysis is strongly connected to delay equations as well as differential- algebraic equations. The complete call, including all application details, is posted here: https://www.stellenwerk-stuttgart.de/jobboerse/research-associate-phd- student-position-applied-mathematics-mfd-stuttgart-210312-459813 This open position is expected to be filled as soon as possible. You are welcome to contact Dr. Benjamin Unger ([log in to unmask]) for further information. We accept applications until April 09, 2021. ------------------------------------------------------- From: Laura Scarabosio [log in to unmask] Date: March 24, 2021 Subject: PhD Position, Uncertainty Quantification, Radboud Univ There is an opening for a PhD position in Numerical Analysis for Uncertainty Quantification at the Radboud University, Nijmegen, the Netherlands. The project will be supervised by Laura Scarabosio. More details on the vacancy and the application procedure can be found at https://www.ru.nl/english/working-at/vacature/details-vacature/? recid=1142718&pad=%2fenglish&doel=embed&taal=uk The deadline for applications is 7 May 2021. ------------------------------------------------------- From: Cluster of Excellence Mathematics Münster [log in to unmask] Date: March 23, 2021 Subject: PhD Positions, Mathematics, Univ of Munster Be part of Mathematics Munster! Dive into your own research project and benefit from the excellent research environment at the University of Munster, Germany. Doctoral positions, as well as Ada Lovelace Fellowships at Mathematics Munster are open for application. Apply now: Doctoral Positions Join the Mathematics Munster Graduate School and profit from the active and demanding research environment for talented and motivated doctoral researchers aiming to become the next generation of leading scientists. Details: Salary level E13 TV-L, 75% for three years; In all research areas related to the Cluster of Excellence; The duration of the PhD positions is three years; The expected starting date is no later than October 2021; Apply until May 1st 2021. Apply now: Ada Lovelace Fellowships If you plan to do your doctoral studies with one of the groups at the department, why not apply for one of our Ada Lovelace Fellowships for excellent PhD students? With the Fellowship Mathematics Munster supports underrepresented groups and aims to increase gender equality in mathematics. Details: salary level E13 TV-L, 25% add on (salary raise) for up to three years; offered to exceptionally strong candidates in the PhD programme; increasing gender equality within the mathematical sciences; supplementing doctoral positions: applications may also be combined with the application for a 75% PhD position. Find more information on positions, requirements and online application form at: https://www.uni-muenster.de/MathematicsMuenster/careers/apply ------------------------------------------------------- From: Stefan Engblom [log in to unmask] Date: March 26, 2021 Subject: PhD Positions, Optimization, Data-driven Modeling and ML Uppsala university, Dept of Information Technology has three PhD student positions open. The research projects for the advertised positions will be within the areas of optimization and mathematical modeling of dynamical systems, both from data and underlying physical principles. They feature for instance machine learning, Bayesian estimation, and optimization based on models in the form of partial differential equations. The projects proposed include: 1. Optimization of deep brain stimulation 2. Data-driven epidemiological modeling 3. Improved optimization using machine learning Detailed information can be found here: https://www.uu.se/en/about-uu/join-us/details/?positionId=388798 ------------------------------------------------------- From: Communications on Applied Mathematics and Computation [log in to unmask] Date: March 22, 2021 Subject: Contents, Comm on Applied Mathematics and Comp, 3(1) Communications on Applied Mathematics and Computation, Volume 3, Issue 1 (2021) https://www.springer.com/42967 Contents Efficient Difference Schemes for the Caputo-Tempered Fractional Diffusion Equations Based on Polynomial Interpolation, Le Zhao, Can Li, Fengqun Zhao A Numerical Algorithm for the Caputo Tempered Fractional Advection- Diffusion Equation, Wenhui Guan, Xuenian Cao A Unified Petrov-Galerkin Spectral Method and Fast Solver for Distributed-Order Partial Differential Equations, Mehdi Samiee, Ehsan Kharazmi, Mark M. Meerschaert, Mohsen Zayernouri A Modified Weak Galerkin Finite Element Method for the Biharmonic Equation on Polytopal Meshes, Ming Cui, Xiu Ye, Shangyou Zhang Focused Section on Matrix Computations, Zhong-Zhi Bai The Nonlinear Lopsided HSS-Like Modulus-Based Matrix Splitting Iteration Method for Linear Complementarity Problems with Positive- Definite Matrices, Lu Jia, Xiang Wang, Xiao-Yong Xiao Two Structure-Preserving-Doubling Like Algorithms to Solve the Positive Definite Solution of the Equation $X-A^H {\bar X}^{-1} A=Q$, Xiao-Xia Guo, Hong-Xiao Wu Randomized Generalized Singular Value Decomposition, Wei Wei, Hui Zhang, Xi Yang, Xiaoping Chen A Class of Preconditioners Based on Positive-Definite Operator Splitting Iteration Methods for Variable-Coefficient Space-Fractional Diffusion Equations, Jun-Feng Yin, Yi-Shu Du On the Preconditioning Properties of RHSS Preconditioner for Saddle- Point Linear Systems, Ju-Li Zhang On Convergence of MRQI and IMRQI Methods for Hermitian Eigenvalue Problems, Fang Chen, Cun-Qiang Miao, Galina V. Muratova ------------------------------------------------------- End of Digest **************************