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 Subject: NA Digest, V. 17, # 22 NA Digest Sunday, August 27, 2017 Volume 17 : Issue 22 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Dense linear algebra software survey New Search Engine for Machine Learning Research FEATool v1.7 - Matlab FEM Toolbox with FEniCS Integration New Book, Scalable Algorithms for Contact Problems FEniCS Conference 2018, University of Oxford, Mar 2018 SIGOPT 2018, Germany, Mar 2018 Frontiers in Industrial and Applied Mathematics, India, Apr 2018 Assistant Professor Position, Numerical Analysis and Scientific Computing Lecturer Position, Comp& Appl Math, Univ of Melbourne Postdoc Position, Univ of Auckland, New Zealand PhD or Postdoc Position, Tensor Methods, KULeuven, Belgium Contents, IMA Journal of Numerical Analysis, 37 (3) Contents, Journal of Scientific Computing, 72 (3) Contents, Numerical Algorithms, 76 (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: Field G. Van Zee [log in to unmask] Date: August 26, 2017 Subject: Dense linear algebra software survey On behalf of The Science of High-Performance Computing group at The University of Texas at Austin, we are conducting a brief (5-10 minute) survey. We are interested in learning about your experiences with dense linear algebra software. To participate in the survey, please click on the following link: https://utexas.qualtrics.com/jfe/form/SV_067zgkigUCvftml It will close at 23:00 UTC on September 11, 2017. Since we all tend to procrastinate leading to things not getting done, please complete this survey immediately! We thank you for your time and look forward to your response. Your opinion is important to us! ------------------------------------------------------- From: Weijian Zhang [log in to unmask] Date: August 26, 2017 Subject: New Search Engine for Machine Learning Research Hello, we are working on a new search engine, called Etymo (https://etymo.io), for data scientists to find interesting research papers. It visualizes search results to reveal interesting structures within the research area (for example, it automatically identifies small clusters within a broad general search). We would love to hear your thoughts and suggestions! Here is a blog post: https://medium.com/@zweijian/visualizing-machine-learning-papers- fbda3f386f43 ------------------------------------------------------- From: JS Hysing [log in to unmask] Date: August 20, 2017 Subject: FEATool v1.7 - Matlab FEM Toolbox with FEniCS Integration Precise Simulation Ltd. developer of the Matlab and Octave Finite Element Multiphysics Toolbox FEATool (https://www.featool.com), has now released FEATool Version 1.7 which introduces the modeling and simulation tool concept Multi-Simulation. Multi-Simulation allows for seamless switching between both built-in and external solvers and simulation tools. Starting with FEATool 1.7, Multi-Simulation supports the the FeatFlow high performance computational fluid dynamics CFD and FEniCS multiphysics solvers, as well as the visualization and postprocessing tool Plotly. The multi-simulation functionality is available directly in the FEATool Matlab GUI, and with m-file scripting as all other FEATool functionality. FEATool 1.7 also features significant updates and new physics modes for porous media flows (Darcy's Law and Brinkman equations), structural mechanics (Euler-Bernoulli Beam modeling), and electromagnetics (electrostatics and magnetostatics). Moreover, all applicable physics modes have been updated to support axisymmetric cylindrical coordinate systems with corresponding GUI support. Furthermore, FEATool now also supports solving different equations in different coupled geometrical subdomains, for example allowing for fluid-structure interaction simulations. Please visit https://www.featool.com for more information. ------------------------------------------------------- From: Zdenek Dostal [log in to unmask] Date: August 21, 2017 Subject: New Book, Scalable Algorithms for Contact Problems Scalable Algorithms for Contact Problems by Z. Dostal, T. Kozubek, M. Sadowska, V. Vondrak Advances in Mechanics and Mathematics 36 / xix+340 pages / Hardcover- eBook; 978-1-4939-6834-3 / Springer 2016 More information on http://www.springer.com/gp/book/9781493968329 This book presents a comprehensive and self-contained treatment of scalable algorithms for the solutions of multibody contact problems of linear elasticity. The brand new feature of these algorithms is theoretically supported numerical scalability and parallel scalability demonstrated on problems discretized by billions of degrees of freedom. The theory supports solving multibody frictionless contact problems, contact problems with possibly orthotropic Tresca's friction, and transient contact problems. It covers BEM discretization, jumping coefficients, floating bodies, mortar non-penetration conditions, etc. The exposition is divided into four parts, the first of which reviews appropriate facets of linear algebra, optimization, and analysis. The most important algorithms and optimality results are presented in the third part of the volume. The presentation is complete, including continuous formulation, discretization, decomposition, optimality results, and numerical experiments. The final part includes extensions to contact shape optimization, plasticity, and HPC implementation. ------------------------------------------------------- From: Patrick Farrell [log in to unmask] Date: August 24, 2017 Subject: FEniCS Conference 2018, University of Oxford, Mar 2018 We are pleased to invite you to attend and/or submit an abstract to the FEniCS Conference 2018 (https://fenicsproject.org/fenics18/). The conference will take place at the University of Oxford on 21-23 March 2018. The FEniCS Project (https://fenicsproject.org) is a popular computing platform for solving partial differential equations. FEniCS enables users to quickly translate scientific models into efficient finite element code. The FEniCS'18 conference is an opportunity for all those interested in the FEniCS Project and related projects to exchange ideas, communicate their results and interact with the automated scientific computing community. We welcome developers, existing and potential users of the FEniCS ecosystem as well as mathematicians, computer scientists and application domain specialists interested in numerical methods, their implementation and applications. The FEniCS'18 conference will emphasise an open and inclusive atmosphere, contributed talks and posters from a diverse range of scientific areas, and dedicated time for discussions and coding. For further information, please see: https://fenicsproject.org/fenics18/ ------------------------------------------------------- From: Ralf Werner [log in to unmask] Date: August 21, 2017 Subject: SIGOPT 2018, Germany, Mar 2018 We would like to draw your attention to the upcoming SIGOPT conference, SIGOPT 2018 International Conference on Optimization, to be held on March 21-23, 2018, in Kloster Irsee, Germany. You can find a preliminary web page with important dates and additional information at http://www.math.uni-augsburg.de/tagungen/SIGOPT-2018 The SIGOPT conference series addresses the full range of theory and practice in all branches of mathematical optimization, e.g., Linear and Nonlinear Programming; Discrete and Combinatorial Optimization; Optimal Control; Stochastic Programming; Multiobjective Programming; Robust Optimization; Game Theory and Bilevel Optimization; and Application of Optimization in Real-World Problems. Young researchers from all areas of optimization are especially encouraged to participate and to present their work. The conference will provide a good opportunity for exchanging ideas, especially across disciplines, and for establishing contacts with colleagues in the friendly atmosphere of Kloster Irsee. Plenary Speakers: - Immanuel Bomze (Universitaet Wien, Austria) - Jacek Gondzio (The University of Edinburgh, Scotland, UK) - Britta Peis (RWTH Aachen, Germany) - Karl Schmedders (Universitaet Zuerich, Switzerland) - Rico Zenklusen (ETH Zuerich, Switzerland) ------------------------------------------------------- From: Rajesh Kumar Sharma [log in to unmask] Date: August 23, 2017 Subject: Frontiers in Industrial and Applied Mathematics, India, Apr 2018 It gives us immense pleasure to inform you that Department of Mathematics, NIT Hamirpur, Hamirpur, Himachal Pradesh, India is organizing an International conference on Frontiers in Industrial and Applied Mathematics (FIAM-2018) in association with The Indian Society of Industrial and Applied Mathematics. Enclosed please find the conference brochure. Dates: April 26-27, 2018 Venue: NIT Hamirpur, Hamirpur, Himachal Pradesh, India You are requested to submit an extended abstract of scholarly unpublished and original work as per format and instruction given at the link http://www.fiam2017.com/Publications/ Important Deadlines: Abstract Submission: October 30, 2017 Acceptance of Abstract: November 15, 2017 Full length paper Submission: December 15, 2017 Acceptance of Paper: January 30, 2018 The accepted full length papers will be published in one of the following publication categories: Category 1: AIP (American Institute of Physics) Conference Proceedings indexed in Scopus, ISI Web of Knowledge, MathSciNet, Scirus, Google Scholar, etc and in the past had been included in SCIE; Category 2: IJETAE Journal indexed in UGC approved Journal; Category 3: IJSER Journal indexed in UGC approved Journal, Thomson Reuters etc. For more information, you may visit the conference website http://www.fiam2018.org/ ------------------------------------------------------- From: J.J.W. van der Vegt [log in to unmask] Date: August 21, 2017 Subject: Assistant Professor Position, Numerical Analysis and Scientific Computing The University of Twente (UT) in Enschede, The Netherlands, is seeking researchers with an outstanding record in Mathematics and its Applications in Science and Engineering for a Faculty position in Numerical Analysis and Scientific Computing within the Department of Applied Mathematics. We are looking for a highly talented research scientist, whose focus is on the development, analysis and application of finite elements methods for partial differential equations, which may also include inverse problems, optimization and optimal control with partial differential equations. The successful candidate is expected to have strong affinity with numerical analysis and scientific computing. In addition, the capability to develop collaborations between mathematics and the multi-disciplinary research context at the University of Twente is important. The position will be at the assistant professor level. Initially, the contract will be for one year. After a positive evaluation the contract will be for an indefinite period. Criteria for promotion to the Associate Professor level comprise a strong track record of publications, evaluation of teaching capacities and a demonstrated ability to acquire research funding and to achieve an international network and reputation. Applications (including curriculum vitae, list of publications, research and teaching statement, and three names of potential references) can be submitted online at www.utwente.nl/vacatures/en/ before September 14, 2017 to the University of Twente, attn. Prof.dr. P.M.G. Apers, Dean of the Faculty Electrical Engineering, Mathematics and Computer Science. The interviews with selected candidates are scheduled on September 27, 2017. For more information please visit www.utwente.nl/vacatures/en/ or contact Prof.dr.ir. J.J.W. van der Vegt (phone +31 534895628, email [log in to unmask]). ------------------------------------------------------- From: Professor Barry Hughes [log in to unmask] Date: August 23, 2017 Subject: Lecturer Position, Comp& Appl Math, Univ of Melbourne http://jobs.unimelb.edu.au/caw/en/job/890427/lecturer-in-computational-and-applied- mathematics-continuum-modelling ------------------------------------------------------- From: Jichao Zhao [log in to unmask] Date: August 26, 2017 Subject: Postdoc Position, Univ of Auckland, New Zealand Improving our understanding of human atrial ionic mechanisms of arrhythmogenesis About the project: Atrial fibrillation (AF), characterized by rapid or irregular electrical activity in the upper chambers of the heart, is the most common heart rhythm disturbance. AF is associated with substantial morbidity and mortality. Anti-arrhythmic drug therapy is a frontline treatment for AF by targeting specific ionic channels with variable success rates due to our incomplete understanding of the basic mechanisms of atrial cellular behaviours in patients under normal and diseased conditions. Computer activation models provide a powerful framework for investigating exact mechanisms behind AF and testing effectiveness of proposed novel treatment strategies by providing a flexible way to dissect highly intertwined contributing factors and set up series of control studies. The potential projects for the Postdoc are 1) To develop biophysics-based human atrial cellular models to    understand the pathophysiology of AF associated with gene mutations    and to identify a potential effective, targeted treatment; 2) To develop biophysics-based human sino-atrial node (SAN) models to    determine the contribution of heart-failure induced structural and    molecular substrates to SAN dysfunction, and potential targeted    treatment; 3) To develop biophysics-based human atrial cellular models to    understand the precise ionic mechanism of new-onset AF under    diabetic conditions and to identify a potential upstream therapy. To find out more about this project please contact Dr Jichao Zhao ([log in to unmask]), Auckland Bioengieering Institute, The University of Auckland, New Zealand. ------------------------------------------------------- From: Lieven De Lathauwer [log in to unmask] Date: August 21, 2017 Subject: PhD or Postdoc Position, Tensor Methods, KULeuven, Belgium Topic: Higher-order tensors become increasingly important in all branches of mathematical engineering. We study algebraic aspects such as the uniqueness of tensor decompositions and develop numerical algorithms for their computation. We develop advanced tensor-based methods for signal processing, data analysis, compressed sensing and machine learning. Code is made available in Tensorlab (www.tensorlab.net). We are looking for new collaborators to conduct research on relevant topics. Profile: We are seeking outstanding candidates who have obtained a master's or doctoral degree in mathematical engineering, computer science, electrical engineering, mathematics or physics, with a strong interest in the mathematical aspects of signal processing and a good knowledge of linear algebra. Experience with numerical mathematics, optimization, signal processing and/or machine learning is a plus. Good implementation skills are valued as well. Knowledge of tensor techniques is not required. Successful applicants will join a well-equipped and experienced multidisciplinary research group at a top university. The position is initially for one year and can be extended. Candidates are requested to send an application letter and detailed CV to Prof. Lieven De Lathauwer (URL: http://www.esat.kuleuven.be/stadius/person.php?id=22). ------------------------------------------------------- From: Charis Edworthy [log in to unmask] Date: August 21, 2017 Subject: Contents, IMA Journal of Numerical Analysis, 37 (3) IMA Journal of Numerical Analysis Links to all articles in this issue are available online at: http://bit.ly/2fYiX81 Banded, stable, skew-symmetric differentiation matrices of high order, Ernst Hairer, Arieh Iserles, http://bit.ly/2v5EPAZ Collocation methods for third-kind VIEs, Sonia Seyed Allaei, Zhan-Wen Yang, Hermann Brunner, http://bit.ly/2fXqIen Refinable spaces and local approximation estimates for hierarchical splines, Annalisa Buffa, Eduardo M. Garau, http://bit.ly/2fYqELy Fast and accurate computation of Chebyshev coefficients in the complex plane, Haiyong Wang, Daan Huybrechs, http://bit.ly/2ijVpew Electromagnetic wave scattering by random surfaces: uncertainty quantification via sparse tensor boundary elements, Carlos Jerez-Hanckes, Christoph Schwab, http://bit.ly/2x4YiTX Existence of H-matrix approximants to the inverse of BEM matrices: the hyper-singular integral operator, Markus Faustmann, Jens Markus Melenk, Dirk Praetorius, http://bit.ly/2xik5a3 Numerical approximation of fractional powers of regularly accretive operators, Andrea Bonito, Joseph E. Pasciak, http://bit.ly/2wopeks A stabilized finite element method for the Darcy problem on surfaces, Peter Hansbo, Mats G. Larson, http://bit.ly/2wghSyL L2(H\gamma1) Finite Element Convergence for Degenerate Isotropic Hamilton-Jacobi-Bellman Equations, Max Jensen, http://bit.ly/2wooCLt Conforming and nonconforming virtual element methods for elliptic problems, Andrea Cangiani, Gianmarco Manzini, Oliver J. Sutton, http://bit.ly/2vRyHiC On the numerical stability of the second barycentric formula for trigonometric interpolation in shifted equispaced points, Anthony P. Austin, Kuan Xu, http://bit.ly/2vRzXSL Approximation of the invariant law of SPDEs: error analysis using a Poisson equation for a full-discretization scheme, Charles-Edouard Brehier, Marie Kopec, http://bit.ly/2vgzMgw Spectral Galerkin methods for a weakly singular Volterra integral equation of the second kind, Can Huang, Martin Stynes, http://bit.ly/2uXwzHa Analysis of a Full Space-Time Discretization of the Navier-Stokes Equations by a Local Projection Stabilization Method, Naveed Ahmed, Tomas Chacon Rebollo, Volker John, Samuele Rubino, http://bit.ly/2wvsVno Gauss quadrature for quasi-definite linear functionals, Stefano Pozza, Miroslav S. Pranic, Zdenek Strakos, http://bit.ly/2fXXcVZ Additive domain decomposition operator splittings-convergence analyses in a dissipative framework, Eskil Hansen, Erik Henningsson, http://bit.ly/2woq8xk A convergent adaptive finite element method for electrical impedance tomography, Bangti Jin, Yifeng Xu, Jun Zou, http://bit.ly/2x50hYj Gradient discretization of hybrid-dimensional Darcy flow in fractured porous media with discontinuous pressures at matrix-fracture interfaces, K. Brenner, J. Hennicker, R. Masson, P. Samier, http://bit.ly/2v5sFIi Convergence rates of finite difference schemes for the linear advection and wave equation with rough coefficient, Franziska Weber, http://bit.ly/2x4YXVc ------------------------------------------------------- From: Chi-Wang Shu [log in to unmask] Date: August 24, 2017 Subject: Contents, Journal of Scientific Computing, 72 (3) Journal of Scientific Computing http://www.springeronline.com/journal/10915 Volume 72, Number 3, September 2017 Superconvergence of Finite Element Approximations for the Fractional Diffusion-Wave Equation, Jincheng Ren, Xiaonian Long, Shipeng Mao and Jiwei Zhang An Adaptive Finite Element Method for the Wave Scattering with Transparent Boundary Condition, Xue Jiang, Peijun Li, Junliang Lv and Weiying Zheng Fast Iterative Method with a Second-Order Implicit Difference Scheme for Time-Space Fractional Convection-Diffusion Equation, Xian-Ming Gu, Ting-Zhu Huang, Cui-Cui Ji, Bruno Carpentieri and Anatoly A. Alikhanov Adaptive WENO Methods Based on Radial Basis Function Reconstruction, Caterina Bigoni and Jan S. Hesthaven A Numerical Strategy for Freestream Preservation of the High Order Weighted Essentially Non-oscillatory Schemes on Stationary Curvilinear Grids, Yujie Zhu, Zhensheng Sun, Yuxin Ren, Yu Hu and Shiying Zhang A New Mixed Finite Element Method for Elastodynamics with Weak Symmetry, Carlos Garcia, Gabriel N. Gatica and Salim Meddahi Regularization of Singularities in the Weighted Summation of Dirac-Delta Functions for the Spectral Solution of Hyperbolic Conservation Laws, Jean-Piero Suarez and Gustaaf B. Jacobs Unconditional Superconvergence Analysis of a Crank-Nicolson Galerkin FEM for Nonlinear Schrodinger Equation, Dongyang Shi and Junjun Wang A Parallel Finite Element Method for 3D Two-Phase Moving Contact Line Problems in Complex Domains, Li Luo, Qian Zhang, Xiao-Ping Wang and Xiao-Chuan Cai A Non-oscillatory Multi-Moment Finite Volume Scheme with Boundary Gradient Switching, Xi Deng, Ziyao Sun, Bin Xie, Kensuke Yokoi, Chungang Chen and Feng Xiao High-Order Accurate Adaptive Kernel Compression Time-Stepping Schemes for Fractional Differential Equations, Daniel Baffet and Jan S. Hesthaven Relaxing the CFL Condition for the Wave Equation on Adaptive Meshes, Daniel Peterseim and Mira Schedensack Numerical Analysis of Fully Discretized Crank-Nicolson Scheme for Fractional-in-Space Allen-Cahn Equations, Tianliang Hou, Tao Tang and Jiang Yang Construction of a p-Adaptive Continuous Residual Distribution Scheme, R. Abgrall, Q. Viville, H. Beaugendre and C. Dobrzynski Linearized Conservative Finite Element Methods for the Nernst-Planck-Poisson Equations, Huadong Gao and Dongdong He Improved Approximation of Phase-Space Densities on Triangulated Domains Using Discrete Flow Mapping with p-Refinement, Janis Bajars, David J. Chappell, Timo Hartmann and Gregor Tanner A Three-Stage Approach for Segmenting Degraded Color Images: Smoothing, Lifting and Thresholding (SLaT), Xiaohao Cai, Raymond Chan, Mila Nikolova and Tieyong Zeng Segmentation of Three-Dimensional Images with Parametric Active Surfaces and Topology Changes, Heike Benninghoff and Harald Garcke ------------------------------------------------------- From: Claude Brezinski [log in to unmask] Date: August 27, 2017 Subject: Contents, Numerical Algorithms, 76 (1) Table of Contents Numerical Algorithms, Vol. 76, No. 1 Ryo Kobayashi, Takuma Kimura, Shinichi Oishi, A method for verifying the accuracy of numerical solutions of symmetric saddle point linear systems Rachid Ait-Haddou, q-Blossoming and Hermite-Pade approximants to the q-exponential function Ky Anh Pham, Ngoc Hai Trinh, Splitting extragradient-like algorithms for strongly pseudomonotone equilibrium problems Shi-Liang Wu, Cui-Xia Li, Modified complex-symmetric and skew-Hermitian splitting iteration method for a class of complex-symmetric indefinite linear systems Sascha Woerz, Heinz Bernhardt, A global convergent derivative-free method for solving a system of non-linear equations Lukasz Plociniczak, Szymon Sobieszek, Numerical schemes for integro-differential equations with Erdelyi-Kober fractional operator Robert A. Van Gorder, On the utility of the homotopy analysis method for non-analytic and global solutions to nonlinear differential equations Ali Baharev, Ferenc Domes, Arnold Neumaier, A robust approach for finding all well-separated solutions of sparse systems of nonlinear equations Benjamin Kehlet, Anders Logg, A posteriori error analysis of round-off errors in the numerical solution of ordinary differential equations Michael A. Jandron, Anthony A. Ruffa, James Baglama, An asynchronous direct solver for banded linear systems Jiyong Li, Trigonometrically fitted multi-step Runge-Kutta methods for solving oscillatory initial value problems Yekini Shehu, Olaniyi S. Iyiola, Strong convergence result for monotone variational inequalities Mona Narang, Saurabh Bhatia, Vinay Kanwar, New efficient derivative free family of seventh-order methods for solving systems of nonlinear equations ------------------------------------------------------- End of Digest **************************