Subject: NA Digest, V. 19, # 30 NA Digest Sunday, August 04, 2019 Volume 19 : Issue 30 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Rémi Arcangéli (1928 - 2019) Model Reduction of Complex Dynamical Systems, Austria, Aug 2019 Minimum Residual & Least-Squares Finite Element Methods, Germany, Sep 2019 Domain Decomposition Methods, Hong Kong, China, Dec 2019 Extension, HPC Asia, Japan, Jan 2020 Tenure Track Researcher Positions, Czech Academy of Sciences, Prague Visiting Professor Position, Inverse Problems, Federal Univ of Paraíba, Brazil Postdoc Position, Deep Learning for Computational Imaging, LANL Postdoc Position, International School for Advanced Studies, Italy Postdoc Position, Mathematical Modeling and Simulation, RICAM Postdoc Position, Non-Newtonian Shallow-water Flow Simulation, France Postdoc Position, Warwick Univ Postdoc Positions, Computer Vision/Optimization, China Contents, IMA Journal of Numerical Analysis, 39 (3) Contents, Journal of Computational Dynamics, 6 Contents, Numerical Algorithms, 81 (4) 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: Juan José Torrens [log in to unmask] Date: August 04, 2019 Subject: Rémi Arcangéli (1928 - 2019) Sorrowfully we let you know that Dr. Remi Arcangeli passed away in July at the age of 91 years. Remi started his academic career in Toulouse, where he studied Mathematics, he completed his these de 3eme cycle in 1963 and later, in 1974, under the supervision of Marc Atteia, he got his these d'Etat. He moved to the University of Pau in 1973, where he hold several positions up to his retirement, as 1st class professor, in 1993. Remi's early contributions dealt with several questions in ordinary and partial differential equations, ill-posed problems, where he contributed the discrepancy principle named after him, and operator theory. The core of his work, however, lay in the fields of numerical analysis and approximation theory, mainly polynomial and rational interpolation, spline functions, scattered data fitting, sampling inequalities, error bounds, and finite elements. Mathematical research was always Remi's passion, which he knew how to pass on his colleagues and doctorate students. Even after his retirement to Arbas, the French Pyrenean small village where he was born, Remi remained very active and wrote a book and several papers. Remi was a great person, who excelled in helpfulness, integrity and sound advices. He will be sadly missed by his colleagues and friends, which would surely want to join us in expressing our most profound condolences to his wife Simone, sons Jean-Paul, Pierre-Noel and Francois, and grandchildren. We shall remember him with affection and great gratitude. Maria Cruz Lopez de Silanes and Juan Jose Torrens ------------------------------------------------------- From: Tobias Breiten [log in to unmask] Date: August 02, 2019 Subject: Model Reduction of Complex Dynamical Systems, Austria, Aug 2019 Subject: 4th Workshop on "Model Reduction of Complex Dynamical Systems" - Scientific Program & Poster session A preliminary schedule as well as the book of abstracts for the 4th Workshop on Model Reduction of Complex Dynamical Systems (MODRED 2019) is now available under https://imsc.uni-graz.at/modred2019/index.html There will be an additional poster session focusing on model order reduction and related software. All posters will be accessible during the coffee breaks of the conference. The workshop will take place from August 28-30, 2019 in Graz, Austria. The conference continues a series of model reduction conferences previously organized in Berlin (2010), Magdeburg (2013), and Odense (2017). Scientific topics include computational methods for model order reduction of dynamical systems, data-driven methods, digital twinning, model reduction methods in applications and surrogate modelling for design and optimization. Proceedings: A special issue on model reduction of complex dynamical systems will appear in the Springer International Series of Numerical Mathematics. ------------------------------------------------------- From: Friederike Hellwig [log in to unmask] Date: August 02, 2019 Subject: Minimum Residual & Least-Squares Finite Element Methods, Germany, Sep 2019 You are cordially invited to participate at the workshop "Minimum Residual & Least-Squares Finite Element Methods" from September 16 to September 18, 2019. The workshop takes place at the Humboldt-Universitat zu Berlin. The speakers include Pavel Bochev, Wolfgang Dahmen, Leszek Demkowicz, Marc Gerritsma, Jay Gopalakrishnan, Norber Heuer, Gerhard Starke, and Rob Stevenson. The program and further information can be found on the website https://hu.berlin/dpgls2019 Speakers are by invitation only. Visitors are welcome to attend the lectures and to present a poster. Subscribe as visitor or course member by sending an e-mail with your first name, last name, and affiliation and the subject to the organizers [log in to unmask] ------------------------------------------------------- From: Felix Kwok [log in to unmask] Date: August 03, 2019 Subject: Domain Decomposition Methods, Hong Kong, China, Dec 2019 DD26: Financial support available for US participants The 26th International Conference on Domain Decomposition Methods (DD26) will be held at the Chinese University of Hong Kong (CUHK) from December 2 to 6, 2019. The purpose of the conference is to bring together mathematicians, computational scientists and engineers who work in the main themes of Domain Decomposition, including theoretical, algorithmic and implementation aspects of domain decomposition methods, solvers for multiphysics problems, parallel-in-time methods, multigrid and multilevel methods, fast solvers and preconditioning, and applications of such methods in physics and engineering. A list of accepted minisymposia can be found on the conference website at https://www.math.cuhk.edu.hk/conference/dd26/?Conference-Home We are also inviting contributed talk and poster proposals. If you would like to give a contributed talk or present a poster, please send your name, institution, talk/poster title and abstract to [log in to unmask] The deadline is August 15, 2019 for contributed talks, and September 15, 2019 for posters. Applications are being accepted for travel support for young US participants, graduate students, and recent PhD recipients for DD26. This support is funded by the National Science Foundation. To be considered for funding, please email a cover letter, including a statement about why you want to participate, along with a CV to [log in to unmask] Please arrange for one letter of recommendation to be sent separately to the same email address. Deadline for submissions: September 30, 2019. For more details about NSF support for US-based participants, please contact Amy Stover at [log in to unmask] ------------------------------------------------------- From: Takeshi Fukaya [log in to unmask] Date: July 29, 2019 Subject: Extension, HPC Asia, Japan, Jan 2020 HPC Asia 2020 - Call for Papers: paper submission due has been extended. HPC Asia: International Conference on High Performance Computing in Asia-Pacific Region, January 15-17, 2020, Fukuoka, Japan High performance computing is a key technology to solve large problems in science, engineering, and business by utilizing computing power which has been evolving to the future. HPC Asia, which is an international conference series on HPC technologies in Asia Pacific region, and was held in the past several times in several countries in Asia regional site to discuss the issues on high performance computing and to exchange information of research and development results. Following the success in 2018 and 2019, the International Conference on High Performance Computing in Asia-Pacific Region, or HPC Asia 2020 is organized in order to exchange ideas, case studies, and research results related to all issues of high performance computing. Important Dates: - Abstract submissions due: August 26, 2019 (AoE, Anywhere on Earth, UTC-12), extended, no further extension. - Paper submissions due: August 31, 2019 (AoE, Anywhere on Earth, UTC-12), extended, no further extension. - Notification of Acceptance: October 14, 2019 - Camera-ready papers due: November 1, 2019 - Conference: January 15-17, 2020 Conference Web page: http://sighpc.ipsj.or.jp/HPCAsia2020/ E-mail contact: [log in to unmask] ------------------------------------------------------- From: Stefan Ratschan [log in to unmask] Date: August 02, 2019 Subject: Tenure Track Researcher Positions, Czech Academy of Sciences, Prague The Institute of Computer Sciences of the Czech Academy of Sciences (ICS CAS), Prague, invites applications for tenure track positions in Computer Science and in Artificial Intelligence. Numerical Analysis is definitely in scope. For more details see: http://www.ustavinformatiky.cz/job-offer/Tenure-Track-Positions-In-Computer-Science- AI/en ------------------------------------------------------- From: Jairo Rocha de Faria [log in to unmask] Date: July 30, 2019 Subject: Visiting Professor Position, Inverse Problems, Federal Univ of Paraíba, Brazil The Federal University of Paraiba, Brazil, through the Postgraduate's Pro-rectory, publishes today, July 22, 2019, Call to invite professors interested to the selection of international visiting professors to teach, research and other activities of academic-scientific profile at the UFPB Postgraduate Programs (Master and Ph.D. level). For this call 55 (fifty-five) vacancies will be offered for professors with a Ph.D. and at least two (2) years of academic experience:http://www.prpg.ufpb.br/prpg/contents/destaques/ufpb-invite- national-and-international-visiting-professors-to-the-selection-process? fbclid=IwAR1sNWhRx829QnkOjiHbQT- XhBVWg8dYkspyy7XJto5ghhN6_nZvrYJ3XtA) In particular for the Postgraduate Program of Mathematic and Computational Modelling. To participate in the selection process, the candidate must present the following documents: 1. Application form (available online in August http://www.prpg.ufpb.br/prpg); 2. Curriculum vitae and diplomas (copies of undergraduate, master, and Ph.D.); 3. Copy of personal identification document (Passport or, for candidates from the Mercosur Bloc, National ID Card); 4. Work and research plan (Inverse Problems); CURRICULUM VITAE 1. Personal information and e-mail; 2. Degrees and academic affiliation; 3. Professional experience in academic, scientific and/or technical fields since obtainment of Ph.D.; 4. Relevant publications; 5. Awards. Inscription: From 03 to 12 August - e-mail: [log in to unmask] ------------------------------------------------------- From: Youzuo Lin [log in to unmask] Date: July 30, 2019 Subject: Postdoc Position, Deep Learning for Computational Imaging, LANL We have an immediate opening for a creative and resourceful postdoctoral researcher with strong computational skills and experience in imaging inverse problems and deep learning methods. 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 subsurface, material and other scientific domains. Minimum Job Requirements: - Strong computational science and numerical optimization skills, in particular, computational imaging and inverse problems - 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. - Ability to obtain DOE Q clearance. Education: A Ph.D. in Computer Sciences, Applied Math, Computational Sciences, Electrical Engineering or closely related field is required. The candidate must have completed all Ph.D. requirements by commencement of the appointment and be within 5 years of completion of the Ph.D. To apply, please search for IRC75107 under jobs.lanl.gov 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: Luca Heltai [log in to unmask] Date: August 01, 2019 Subject: Postdoc Position, International School for Advanced Studies, Italy Title of the position: Adaptive methods for solving multi-physics problems in nanoelectronic devices. The International School for Advanced Studies, Trieste, has an opening in the applied mathematics laboratory group (mathLab) for a Postdoctoral Scholar. The candidate will work on - Modeling and numerical simulation of nanometric electronic devices - Modeling of electrical properties of materials, including structural defects and interfaces, providing a link between ab-initio simulation software and traditional technological CAD software used in the semiconductor industry. - Adaptive methods for the numerical simulation of the potential / temperature of the device and of the charge continuity and drift-diffusion equations. The project is developed in close contact with a software company working in the field of semiconductor device modeling. Additional information: https://www.sissa.it/bandi/selezione-pubblica-titoli-conferimento-di-n-1-assegno-di- ricerca-area-matematica-ref-prof-2 Deadline for the application: 30 August 2019 First available date for position start: 16 September 2019 Online application: https://pica.cineca.it/sissa/ar-fe-mate-38-2019 ------------------------------------------------------- From: Marie-Therese Wolfram [log in to unmask] Date: July 29, 2019 Subject: Postdoc Position, Mathematical Modeling and Simulation, RICAM The New Frontiers Group on 'Mathematical modeling and simulation of crowded transport in the life and social sciences' at the Johann Radon Institute for Computational and Applied Mathematics (RICAM, http://www.ricam.oeaw.ac.at/ ) is seeking for a PostDoc with a strong background in applied partial differential equations. The successful candidate will join the team of Dr. Marie-Therese Wolfram in Vienna, which is working on analytic and computational aspects of crowded transport. The research focus will be adjusted to the candidate\371s interests and should include collaborative projects within the working group. We are looking for talented and independent young researcher with an excellent background on the analytical and/or computational methods for optimal transport or mean field games. A PhD in applied mathematics is mandatory. A strong record of relevant publications in international peer-reviewed journals in applied mathematics is essential. The position is available from September 1, 2019 or soon thereafter, and will be offered as a fixed-term contract for an initial period of one year (with a possible extension to a maximum of two years). The monthly gross salary is based on the salary scale of the FWF and will be EUR 3.711,10 (14 times per year). Applicants should send the following information: motivation letter; research statement; curriculum vitae; PhD certificate; publication list; and 2 refererence letters in a single pdf file to [log in to unmask] until August 18th, 2019. ------------------------------------------------------- From: Sébastien Boyaval [log in to unmask] Date: August 02, 2019 Subject: Postdoc Position, Non-Newtonian Shallow-water Flow Simulation, France A postdoc position is available at Ecole des Ponts (Laboratoire d'hydraulique Saint-Venant) close to Paris, France. The goal is to simulate new non-Newtonian shallow-water models to predict the transport of sediments in rivers. It is a project common with EDF, see details in https://www.saint-venant-lab.fr/viedulabo/recrutements/shallow-water-flows-of-non- newtonian-fluids ------------------------------------------------------- From: Christoph Ortner [log in to unmask] Date: August 01, 2019 Subject: Postdoc Position, Warwick Univ The advertised post (tiny.cc/6z7laz) is intended to develop the theoretical/mathematical foundations of the Leverhulme Trust funded project "The Nature of Interatomic Forces in Metallic Systems", within one of two possible directions: (1) Developing an approximation theoretic approach to constructing interatomic potentials and hamiltonians. This theme will require expertise in analysis, approximation theory and machine learning. (2) Connecting randomness and localisation to characterise the interaction range of interatomic forces. This theme will require expertise in analysis, probability theory and random matrices. For more details, please see tiny.cc/6z7laz or the full link below. Informal enquiries to [log in to unmask] are welcome. Closing Date: 26 August 2019. Start Date: As soon as possible. https://atsv7.wcn.co.uk/search_engine/jobs.cgi? owner=5062452&ownertype=fair&jcode=1812790&vt_template=1457&adminview=1 ------------------------------------------------------- From: J. Lu [log in to unmask] Date: July 31, 2019 Subject: Postdoc Positions, Computer Vision/Optimization, China Postdoc Positions in Shenzhen University, China Location: Shenzhen, China Job Type: Full-Time Duration: 2 years Number of Position: 4 Positions Salary: about 480,000 RMB (about 70,000 US dollars) per year for those who have obtained Ph.D. degrees from universities ranked 200 in the world (e.g., Times Higher Education World University Ranking, QS, USNEWS). Closing Date: August 15, 2019. Description: We are looking for Postdoctoral Researchers in Image/Video Processing/Analysis,Mathematical Imaging, Computer Vision, Optimization, Inverse Problems, Wavelet analysis, etc. We have no teaching tasks and check in / check out policy for Postdoctoral Researchers. Promotors: - Prof. Jian Lu (Shenzhen Key Laboratory of Advanced Machine Learning and Applications, Shenzhen University) - Prof. Charles Chui (Editors-in-Chief of ACHA) Those who are interested please send their C.V. to Prof. Dr. Jian Lu, e-mail: [log in to unmask]; [log in to unmask] ------------------------------------------------------- From: IMA Journal of Numerical Analysis [log in to unmask] Date: August 01, 2019 Subject: Contents, IMA Journal of Numerical Analysis, 39 (3) IMA Journal of Numerical Analysis Links to all articles in this issue are available online at: https://academic.oup.com/imajna/issue/39/3 Two-scale method for the Monge-Ampere equation: pointwise error estimates, R H Nochetto, D Ntogkas, and W Zhang A stroboscopic averaging algorithm for highly oscillatory delay problems, J M Sanz-Serna and Beibei Zhu Runge-Kutta convolution coercivity and its use for time-dependent boundary integral equations, Lehel Banjai and Christian Lubich Equilibrated flux a posteriori error estimates in L2 (H1)-norms for high- order discretizations of parabolic problems, Alexandre Ern, Iain Smears, and Martin Vohralik An efficient algorithm for simulating ensembles of parameterized flow problems, Max Gunzburger, Nan Jiang, and Zhu Wang Unified error analysis for nonconforming space discretizations of wave- type equations, David Hipp, Marlis Hochbruck, and Christian Stohrer Random permutations fix a worst case for cyclic coordinate descent, Ching-pei Lee and Stephen J Wright A semismooth Newton method with analytical path-following for the H1- projection onto the Gibbs simplex, L Adam, M Hintermuller, and T M Surowiec An inexact regularized Newton framework with a worst-case iteration complexity of O(epsilon-3/2) for nonconvex optimization, Frank E Curtis, Daniel P Robinson, and Mohammadreza Samadi Schur complement preconditioners for multiple saddle point problems of block tridiagonal form with application to optimization problems, Jarle Sogn and Walter Zulehner Optimal sampling rates for approximating analytic functions from pointwise samples, Ben Adcock, Rodrigo B Platte, and Alexei Shadrin Approximation of minimal surfaces with free boundaries: convergence results, Tristan Jenschke Solving polynomial systems via homotopy continuation and monodromy, Timothy Duff, Cvetelina Hill, Anders Jensen, Kisun Lee, Anton Leykin, and Jeff Sommars Two low-order nonconforming finite element methods for the Stokes flow in three dimensions, Jun Hu and Mira Schedensack Finite element approximations of the nonhomogeneous fractional Dirichlet problem, Gabriel Acosta, Juan Pablo Borthagaray, and Norbert Heuer Analysis of an adaptive HDG method for the Brinkman problem, Rodolfo Araya, Manuel Solano, and Patrick Vega Numerical analysis of the energy-dependent radiative transfer equation, Kenneth Czuprynski, Joseph Eichholz, and Weimin Han Quasi-Monte Carlo integration with product weights for elliptic PDEs with log-normal coefficients, Yoshihito Kazashi Error estimates of finite element method for semilinear stochastic strongly damped wave equation, Ruisheng Qi and Xiaojie Wang ------------------------------------------------------- From: Robert McLachlan [log in to unmask] Date: July 30, 2019 Subject: Contents, Journal of Computational Dynamics, 6 The Journal of Computational Dynamics is a platinum OA journal published by the American Institute of Mathematical Sciences. https://www.aimsciences.org/journal/2158-2491 Werner Bauer & Francois Gay-Balmaz, Towards a geometric variational discretization of compressible fluids: The rotating shallow water equations Jing Li & Panos Stinis, Mori-Zwanzig reduced models for uncertainty quantification Lee DeVille, Nicole Riemer & Matthew West, Convergence of a generalized Weighted Flow Algorithm for stochastic particle coagulation Shrihari Sridharan & Atma Ram Tiwari, The dependence of Lyapunov exponents of polynomials on their coefficients Robert I McLachlan, Christian Offen & Benjamin K Tapley, Symplectic integration of PDEs using Clebsch variables ------------------------------------------------------- From: Claude Brezinski [log in to unmask] Date: August 04, 2019 Subject: Contents, Numerical Algorithms, 81 (4) Table of Contents Numerical Algorithms, Vol. 81, No. 4 Special Issue: Auckland Numerical Ordinary Differential Equations Conference (ANODE 2018), February 19-23, 2018, Auckland, New Zealand Preface, Luigi Brugnano, Zdzislaw Jackiewicz, Helmut Podhaisky, Yajuan Sun, Caren Tischendorf Spectrally accurate space-time solution of Hamiltonian PDEs, Luigi Brugnano, Felice Iavernaro, Juan I. Montijano, Luis Randez Global error bounds of one-stage extended RKN integrators for semilinear wave equations, Bin Wang, Xinyuan Wu Symplectic integration of boundary value problems, Robert I. McLachlan, Christian Offen A new family of A-stable Runge-Kutta methods with equation-dependent coefficients for stiff problems, Yonglei Fang, Yanping Yang, Xiong You, Bin Wang Optimal residuals and the Dahlquist test problem, Robert M. Corless, C. Yalcin Kaya, Robert H. C. Moir Explicit Gautschi-type integrators for nonlinear multi-frequency oscillatory second-order initial value problems, Wei Shi, Xinyuan Wu Symplectic integrators with adaptive time step applied to runaway electron dynamics, Yanyan Shi, Yajuan Sun, Yang He, Hong Qin, Jian Liu Trees and B-series, J.C. Butcher Waveform relaxation: a convergence criterion for differential-algebraic equations, Jonas Pade, Caren Tischendorf Transformed implicit-explicit DIMSIMs with strong stability preserving explicit part, G. Izzo, Z. Jackiewicz Krylov projection methods for linear Hamiltonian systems, Lu Li, Elena Celledoni Energy-preserving trigonometrically fitted continuous stage Runge-Kutta-Nystrom methods for oscillatory Hamiltonian systems, Jiyong Li, Yachao Gao Variable order and stepsize in general linear methods, Saghir Ahmad, J.C. Butcher, Winston L. Sweatman A novel approach to rigid spheroid models in viscous flows using operator splitting methods, Benjamin Tapley, Elena Celledoni, Brynjulf Owren, Helge I. Andersson Gating-enhanced IMEX splitting methods for cardiac monodomain simulation, Kevin R. Green, Raymond J. Spiteri The performance of the N-body integrator SSS, P.W. Sharp On the existence of three-stage third-order modified Patankar-Runge-Kutta schemes, Stefan Kopecz, Andreas Meister Symplectic simulation of dark solitons motion for nonlinear Schrodinger equation, Beibei Zhu, Yifa Tang, Ruili Zhang, Yihao Zhang Error control Gaussian collocation software for boundary value ODEs and 1D time-dependent PDEs, Mark Adams, Connor Tannahill, Paul Muir Energy-preserving algorithm for gyrocenter dynamics of charged particles, Ruili Zhang, Jian Liu, Hong Qin, Yifa Tang Split-step cubic B-spline collocation methods for nonlinear Schroedinger equations in one, two, and three dimensions with Neumann boundary condition,s Shanshan Wang, Luming Zhang ------------------------------------------------------- End of Digest **************************