Subject: NA Digest, V. 15, # 21 NA Digest Tuesday, May 26, 2015 Volume 15 : Issue 21 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Results of the 6th competitive game IMA Maths in Finance, UK, Jun 2015 Preconditioning 2015, Netherlands, Jun 2015 UQ Conference (QUEST), China, Oct 2015 WAW2015, Netherlands, Dec 2015 Scalable Solvers Group Lead Position, Berkeley Lab Postdoc Position, Computational Science, EPFL, Switzerland Postdoc Position, X-ray Imaging, Tufts Univ Postdoc and PhD Positions, Exascale Simulations PhD Position, Applied Mathematics, INSA Rouen Contents, BIT Numerical Mathematics, 55 (2) Contents, Constructive Approximation, 41 (3) Contents, Siberian J of Numerical Mathematics, 18 (1-2) Subscribe, unsubscribe, change address, or for na-digest archives: http://www.netlib.org/na-digest-html/faq.html Submissions for NA Digest: http://icl.cs.utk.edu/na-digest/ ------------------------------------------------------- From: Beauzamy [log in to unmask] Date: May 19, 2015 Subject: Results of the 6th competitive game The results of the 6th competitive game "uncertainties in GPS positioning" are available (with a few comments) at: http://scmsa.eu/archives/SCM_FFJM_Competitive_Game_2014_2015_comments.pdf Best regards, Bernard Beauzamy ------------------------------------------------------- From: Pamela Bye [log in to unmask] Date: May 20, 2015 Subject: IMA Maths in Finance, UK, Jun 2015 18 – 19 June 2015 University of Manchester The purpose of the conference is to bring together academics and practitioners interested in mathematical modelling in finance. We invite researchers whose research work contains a strong Mathematical element to attend. We have included a broad range of topics with the aim to expose participants to models, ideas and techniques that they may not be aware of, and to foster future collaborations. Papers were invited on the following themes: - Computational Finance high dimensional problems, simulation techniques, PDE methods - Energy Markets: market regulation and monitoring, competition and investment, commodity pricing and risk management - Risk: credit risk modelling, liquidity risk, counterparty risk - Operations Research: game theory, network optimisation, revenue management, portfolio optimisation - Real Options: competition, optimal investment Invited Speakers: - Rui Carvalho (University of Cambridge) - Tim Johnson (Heriot-Watt University) - Christoph Reisinger (University of Oxford) - Alex Weissensteiner (Technical University of Denmark) Further information http://ima.org.uk/conferences/conferences_calendar/maths_in_finance_2015.html ------------------------------------------------------- From: Wil Schilders [log in to unmask] Date: May 19, 2015 Subject: Preconditioning 2015, Netherlands, Jun 2015 The full program for Precon 2015 is now available on the website: http://www.win.tue.nl/precon2015/program.html. It is a very interesting program with the latest developments in preconditioning. Furthermore, there will be an evening lecture by Henk van der Vorst and Koos Meijerink on "40 years of preconditioning in The Netherlands" to be held in the Van Abbe museum of modern arts in Eindhoven. It is still possible to register at the early bird rates until May 31. Please consult the website for more information, and for registration. ------------------------------------------------------- From: Dongbin Xiu [log in to unmask] Date: May 19, 2015 Subject: UQ Conference (QUEST), China, Oct 2015 On behalf of the organizing committee, we would like to invite you to take part in the first International Conference on Quantification of Uncertainty in Engineering, Sciences and Technology (QUEST). The QUESTconference will be held in Beihang University, Beijing, China, during October 19th-23rd, 2015. The conference will bring together leading researchers from a large variety of disciplines including mathematics, computer science, engineering, social sciences, etc. to discuss the latest developments in uncertainty quantification (UQ). Representative focal areas include, but are not limited to, stochastic methods, data science, material, bio-engineering, aerospace engineering, environmental science, hydrology, etc. Preliminary information about the conference can be found at http://www.uq-quest.org. The website will be under constant update. Please respond by May 31st, 2015 about your decision. We sincerely hope you will be able to join the conference and we are very much looking forward to your presence at QUEST. ------------------------------------------------------- From: David Gleich [log in to unmask] Date: May 25, 2015 Subject: WAW2015, Netherlands, Dec 2015 The 12th Workshop on Algorithms and Models for the Web Graph (WAW 2015) will take place in Eindhoven, Netherlands on December 10-11, 2015. Please visit https://www.cs.purdue.edu/waw2015 for info. This year, WAW will be collocated with a school on complex networks and graph models held on December 7-8, 2015 with a collaborative project day on December 9. There will be a separate announcement with additional details on the school. WAW 2015 invites original research papers on all mathematical and algorithmic aspects of graph algorithms and graph models especially papers that espouse the view of complex data as networks. Submissions are invited in, but not limited to, the following areas: - Algorithms: graph algorithms, clustering, collaborative filtering. - Analysis: structural properties, visualization, communities, real-world random graph models, processes on random graphs. - Data Models: graph models, evolution, trust and reputation networks. - Applications: web mining, social applications, web search and ranking, recommender systems, citation analysis, biological networks, molecular networks, other complex network models. The workshop proceedings will be published as a Springer LNCS volume. Paper submissions July 25, 2015; notifications by Sept. 11, 2015. ------------------------------------------------------- From: Esmond G. Ng [log in to unmask] Date: May 20, 2015 Subject: Scalable Solvers Group Lead Position, Berkeley Lab The Scalable Solvers Group in the Computational Research Division at Lawrence Berkeley National Laboratory is looking for a group lead. The successful candidate will join the Scalable Solvers Group as a career staff scientist or senior scientist, depending on qualifications, and will lead and manage the group. There will be opportunities for the success candidate to conduct research and development in areas related to the solution of large-scale algebraic systems, with an emphasis on high-performance computing on forthcoming extreme-scale computer architectures. The Scalable Solvers Group develops and implements state-of-the-art algorithms for solving large-scale algebraic systems, including, but not limiting to, systems of linear equations, systems of nonlinear equations, and eigenvalue problems, on massively parallel computer architectures. Many of the algorithms are available and have been distributed in the form of software packages. By collaborating with domain scientists, the group applies the algebraic solvers developed to solve a variety of scientific problems that are central to the mission of the U.S. Department of Energy. Information on the group is available at http://crd.lbl.gov/departments/applied-mathematics/scalable-solvers-group/ Qualified candidates with complementary expertise in new scientific areas are highly desired. Full postings of the group lead position can be found at https://lbl.taleo.net/careersection/2/jobdetail.ftl?lang=en&job=80993 The posting shall remain open until the position is filled, however for full consideration, please apply by August 31, 2015. ------------------------------------------------------- From: Sylvain Vallaghe [log in to unmask] Date: May 18, 2015 Subject: Postdoc Position, Computational Science, EPFL, Switzerland In the frame of an exciting industrial grant between Prof. Picasso’s group at EPFL MATHICSE and the company Akselos, we're looking for a computational scientist/applied mathematician to work at EPFL MATHICSE on R&D problems that are relevant to Akselos customers. Akselos is an MIT spin-off that is providing a revolutionary new cloud-based approach for large-scale engineering simulations. Job description: The component-based reduced basis technology combines the strengths of domain decomposition and model reduction techniques in order to reach unprecedented simulation speed (around 1000 times faster than traditional Finite Element). The successful candidate will join a 2 year project focused on extending the current technology. The ideal candidate will have the following skills: - Solid understanding of mathematical foundations of Finite Element Analysis (FEA), - Previous development of FEA software, - Software engineering practices (revision control, continuous integration, agile development, etc), - Advanced C++ expertise (STL, C++11), - Experience with implementation of numerical methods, - Experience with open source C++ FEA or CFD libraries is a plus (e.g. libMesh, Deal.II, DUNE, OpenFOAM, PETSc, etc), - Experience with model reduction techniques is a plus. Send resume and cover letter to [log in to unmask] . More information: akselos.com mathicse.epfl.ch Relevant publication: doi:10.1186/2213-7467-1-3 ------------------------------------------------------- From: Eric Miller [log in to unmask] Date: May 18, 2015 Subject: Postdoc Position, X-ray Imaging, Tufts Univ Applications are invited for a postdoctoral position in the Laboratory for Imaging Science Research (LaISR) in the Tufts University Dept. of Electrical and Computer Engineering. This appointment would be for 18 months, with an estimated start date of September 2015, for a project entitled “3D Reconstruction Methods for Novel Sparse-view Energy- discriminating Computed Tomography System.” Under this project, the fellow will work with Tufts faculty and industrial collaborators to perform research in the area of limited view, multi-energy X-ray reconstruction methods with the goal of developing next-generation airport baggage scanning systems. In particular, we are developing iterative methods that can exploit novel system geometries and can combine energy-resolved X- ray measurements from a sensors operating at varying levels of energy resolution. While previous experience in CT reconstruction would be ideal, we welcome applicants with significant experience in related fields including inverse problems, statistical signal processing, sparse signal or image processing, compressive sensing, and computational modeling. Interested applicants should send a cover letter detailing their research interests and career goals, CV, and names and contact information of 3 references to Dr. Brian Tracey ([log in to unmask]). ------------------------------------------------------- From: Michael Bader [log in to unmask] Date: May 20, 2015 Subject: Postdoc and PhD Positions, Exascale Simulations Postdoc and PhD positions in Exascale Simulations of Earthquakes and Binary Neutron Stars (at Technische Universität München, University of Trento, Durham University, Frankfurt Institute of Advanced Studies and Ludwig-Maximilians-Universität München). ExaHyPE is a new project to be funded by the European Horizon 2020 initiative. ExaHyPE's mission is to develop a novel simulation engine for hyperbolic PDE problems at exascale. Within the four-year project period, we tackle grand-challenge simulations in Seismology and Astrophysics. Applications include multi-physics earthquake events, exploration scenarios and seismic hazard assessment, as well as the collapse of a binary neutron star system with the anticipated gravitational wave signal. The underlying simulation engine will be based on high-order discontinuous Galerkin discretization on dynamically adaptive Cartesian grids. ExaHyPE brings together researchers in HPC, numerical mathematics, computational seismology and computational astrophysics on a highly interdisciplinary challenge. To join our ExaHyPE project team, we call for applications for the following positions: Project Coordinator (PostDoc position): In the ExaHyPE project, you will coordinate the joint research, software development and outreach, and you will work actively towards an interdisciplinary, networked, productive team. We are therefore looking for a postdoc researcher with excellent interdisciplinary background and strong motivation to drive cooperative research in an international team of young researchers. Ideally, you have worked with discontinuous Galerkin methods in HPC environments before, however, we see the ability and passion to integrate and learn new techniques as your most important qualification. Research Assistants: At each of the university partners, we offer one or two positions as research assistant. All positions offer excellent research training opportunities to obtain a PhD degree. If you have earned your master degree (or will earn it in the near future) in a field related to computational science, high performance computing, seismology or astrophysics, please send your application to the ExaHyPE team. Applications will be considered until the positions are filled. To enable a project start at Oct 1, 2015, we request applications before June 30 (esp. for the coordinator position). Please send a single PDF document, to [log in to unmask] ------------------------------------------------------- From: Arnaud Knippel [log in to unmask] Date: May 19, 2015 Subject: PhD Position, Applied Mathematics, INSA Rouen A position as research fellow (PhD candidate) in applied mathematics is available at INSA Rouen in the Laboratory of Mathematics (LMI - EA3226). The PhD candidate will be a member of the XTerM project, a regional project on complex systems. The work will consist in the analysis of dynamic fluxes on graphs. The position is open for three years starting october 1st. Candidates should have a MSc/M2 in mathematics, computer science or relative fields with some knowledge of graph theory and dynamical systems. Contact me and Jean-Guy Caputo ([log in to unmask], [log in to unmask]) before June 15 for more information or send CV, grades of the last two years and reference letters. ------------------------------------------------------- From: Lars Elden [log in to unmask] Date: May 25, 2015 Subject: Contents, BIT Numerical Mathematics, 55 (2) BIT Numerical Mathematics Volume 55, Issue 2, June 2015 On the positivity of Poisson integrators for the Lotka–Volterra equations, Mélanie Beck, Martin J. Gander Generalized grid transfer operators for multigrid methods applied on Toeplitz matrices, Matthias Bolten, Marco Donatelli, Thomas Huckle… A high-order accurate accelerated direct solver for acoustic scattering from surfaces, James Bremer, Adrianna Gillman, Per-Gunnar Martinsson A continuation multilevel Monte Carlo algorithm, Nathan Collier, Abdul-Lateef Haji-Ali, Fabio Nobile A well-balanced and asymptotic-preserving scheme for the one- dimensional linear Dirac equation, Laurent Gosse Comparison of approximate shape gradients, R. Hiptmair, A. Paganini, S. Sargheini Stability analysis of Crank–Nicolson and Euler schemes for time- dependent diffusion equations, Cassio M. Oishi, Jin Y. Yuan, Jose A. Cuminato… A review on numerical schemes for solving a linear stochastic oscillator, M. J. Senosiain, A. Tocino Stiffness 1952–2012: Sixty years in search of a definition, Gustaf Söderlind, Laurent Jay, Manuel Calvo Inner products of box splines and their derivatives, Hendrik Speleers A damped semismooth Newton method for the Brugnano–Casulli piecewise linear system, Zhe Sun, Lei Wu, Zhe Liu On the application of GMRES to oscillatory singular integral equations, Thomas Trogdon ------------------------------------------------------- From: Ed Saff [log in to unmask] Date: May 26, 2015 Subject: Contents, Constructive Approximation, 41 (3) Constructive Approximation Volume 41 Number 3 Special Issue on Painleve Equations - Part II Table of Contents Introduction, Percy Deift and Alexander Its, Pages 325-334 Isomonodromic Deformations and Painleve Equations, Mikhail V. Babich, Pages 335-356 New 2x2-Matrix Linear Problems for the Painleve Equations III, V, G. Aminov and S. Arthamonov, Pages 357-383 Classical-Quantum Correspondence and Functional Relations for Painleve Equations, Anton Zabrodin and Andrey Zotov, Pages 385-423 On the Tritronquee Solutions of P^2_I, Andrei Kapaev, Christian Klein, and Tamara Grava, Pages 425-466 Tronquee Solutions of the Painleve Equation PI, O. Costin, R.D. Costin, and M. Huang, Pages 467-494 A Review on the Sixth Painleve Equation, Davide Guzzetti, Pages 495-527 Asymptotics of Orthogonal Polynomials with Complex Varying Quartic Weight: Critical Point Behavior and the First Painleve Equation, M. Bertola and A. Tovbis, Pages 529-587 Painleve II in Random Matrix Theory and Related Fields, Peter J. Forrester and Nicholas S. Witte, Pages 589-613 Integrable Aspects of Universal Quantum Transport in Chaotic Cavities, Eugene Kanzieper, Pages 615-651 Volume 41 Number 3 of Constructive Approximation is now available on the SpringerLink web site at http://link.springer.com/journal/365 ------------------------------------------------------- From: SibJNM [log in to unmask] Date: May 20, 2015 Subject: Contents, Siberian J of Numerical Mathematics, 18 (1-2) CONTENTS, Siberian Journal of Numerical Mathematics Volume 18, No. 1, 2015 For information to contributors and about subscriptions see http://www.sscc.ru/SibJNM/ Aleksandrov V.M., Computing optimal internal control of linear system (in Russian), pp. 1-13 Artemiev S.S., Ivanov A.A., Smirnov D.D., New frequency characteristics of the numerical solutions of stochastic differential equations (in Russian), pp. 15-26 Borovko I.V., Krupchatnikov V.N., Simulation of reaction of the Hadley cell and extratropical troposphere stratification on the climate changes using a general atmosphere circulation of a medium complexity (in Russian), pp. 27-40 Gervich L.R., Kravchenko E.N., Steinberg B.Y., Yurushkin M.V., Automatic program parallelization with block data distribution (in Russian), pp. 41-53 Kozak A.V., Khanin D.I., Approximate solution of large systems of equations with multi- dimensional Toeplitz matrices (in Russian), pp. 55-64 Mohanty R.K., Talwar Jyoti., A new coupled reduced alternating group explicit method for non- linear singular two point boundary value problems on a variable mesh (in Russian), pp. 65-78 Tarakanov V.I., Dubovik A.O., Iterative algorithm for calculation spectral parameters of quadratic bunch operators in the Hilbert space (in Russian), pp. 79-93 Khatuntseva O.N., Method for description of heat transfer processes in fractal systems using scale variable (in Russian), pp. 95-105 CONTENTS, Siberian Journal of Numerical Mathematics Volume 18, No. 2, 2015 Antonova T.V., Methods of identifying a parameter in the kernel of the first kind equation of the convolution type on the class of functions with discontinuities (in Russian), pp. 107-120 Artemiev S.S., Ivanov A.A., Analysis of the effect of random noise on the strange attractors of Monte Carlo on a supercomputer (in Russian), pp. 121-134 Voronin K.V., Laevsky Yu.M., On the stability of some flux splitting schemes (in Russian), pp. 135-145 Gusev S.A., Application of SDE's to estimating the solution of heat equations with discontinuous coefficients (in Russian), pp. 147-161 Kotel'nikov E.A., Non-convex minimization of a quadratic function on a sphere (in Russian), pp. 163-176 A.G. Nikolaev, E.A. Tanchik, The first boundary value problem of elasticity theory for a cylinder with $N$ cylindrical cavities (in Russian), pp. 177-189 Saveliev L.Ya., Calculation of the number of states in binary Markov stochastic models (in Russian), pp. 191-200 Stepanova L.V., Igonin S.A., Asymptotics of the near crack-tip stress field of a fatigue growing crack in damaged materials: numerical experiment and analytical solution (in Russian), pp. 201-217 Shkarupa E.V., Comparison of approaches to optimization of functional statistical modeling algorithms in the metric of the space \C (in Russian), pp. 219-234 ------------------------------------------------------- End of Digest **************************