[External Email] Subject: NA Digest, V. 20, # 30 NA Digest Sunday, August 09, 2020 Volume 20 : Issue 30 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Dominik Schoetzau (1970 - 2020) KaHiP v3.00: Karlsruhe High Quality Partitioning Professor Position, Mathematical Data Analysis, Univ Saarbrucken Professor Position, Nonlinear Optimization, Montreal Postdoc Position, Algorithms for Inpainting-Based Image Compression Postdoc Position, Krylov Methods, Charles Univ, Czech Rep PhD Positions, Numerical Mathematics, Charles Univ, Czech Rep PhD position, Numerical Analysis, Univ of Twente New Deadline, ACOM Special Issue on Integral Equations, Mar 2021 Contents, Statistics, Optimization and Information Computing, 8 (3) Contents: Constructive Approximation, 52 (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: Chen Greif [log in to unmask] Date: August 06, 2020 Subject: Dominik Schoetzau (1970 - 2020) It is with deep sadness that we share the news of the passing of our friend and colleague, Dominik Schoetzau. Dominik obtained his PhD from ETH Zurich, working under the supervision of Christoph Schwab. After completing a postdoctoral fellowship in Minnesota under the supervision of Bernardo Cockburn, he joined the professorial ranks of the Department of Mathematics of the University of British Columbia in Vancouver in 2003. Dominik's main area of expertise was numerical methods for partial differential equations, and in particular, finite element methods. He was a world-renowned expert in Discontinuous Galerkin (DG) methods, and made significant contributions that were instrumental in turning those techniques into a powerful and broadly used family of methods. Dominik published landmark results on the error and convergence of Local DG methods, providing rigorous analysis for establishing their utility. He also made significant contributions to the efficient numerical solution of finite element discretizations of Maxwell's equations, fluid dynamics equations, incompressible magnetohydrodynamics, and other important problems. In 2004, Dominik was diagnosed with brain cancer. He fought it with dignity and determination, underwent three surgeries, and survived for 16 years, until he passed away peacefully on July 29, 2020. Despite his health struggles, Dominik continued to produce impactful mathematical results in the past several years, up until 2020. In his most recent research project he and his collaborators have published a sequence of papers proving exponential convergence of hp-FEM for elliptic problems, which addressed decades-long open challenges. Dominik was a wonderful, kind, humble, and good-hearted human being, who was well-liked by everyone who knew him. His contributions in the field of numerical analysis are outstanding and long lasting. A brilliant mathematical career has been cut cruelly short. He will be dearly missed. Chen Greif and Nilima Nigam ------------------------------------------------------- From: Christian Schulz [log in to unmask] Date: August 03, 2020 Subject: KaHiP v3.00: Karlsruhe High Quality Partitioning Release of KaHiP v3.00. We are proud to announce the release of a major update of our graph partitioning framework KaHiP (Karlsruhe High Quality Graph Partitioning). KaHiP is a family of high quality graph partitioning programs. It contains various graph partitioning algorithms that can be configured to either achieve the best known partitions for many standard benchmark instances or to be a good trade-off between partition quality and running time. Since the last major release we added: - node ordering algorithms to compute fill-in reduced node orderings - ILP based exact solvers and partition improvement algorithms - global multisection process mapping algorithms - and a lot of minor improvements of our system This is round of improvements and extensions is due to Alexandra Henzinger, Alexander Noe, Wolfgang Ost, Daniel Seemaier The code is available under MIT Licence. - open source implementation / website https://kahip.github.io - github https://github.com/KaHIP We are glad for any comments, stars and error reports (or even bug fixes) that you send us. ------------------------------------------------------- From: Joachim Weickert [log in to unmask] Date: August 07, 2020 Subject: Professor Position, Mathematical Data Analysis, Univ Saarbrucken The Faculty of Mathematics and Computer Science at Saarland University (Saarbrucken, Germany) is inviting applications for the following position (tenured full professorship, German salary scale W3) commencing at the earliest opportunity: Professorship (W3) for Mathematics and Computer Science with a Focus on Mathematical Data Analysis (reference number W1731) The successful candidate will have exceptional research and teaching skills, international visibility, and a research direction in mathematical data analysis, with a preferred focus on the mathematical foundations of deep learning. Expertise in at least one of the following areas should be demonstrated: continuous optimization, applied harmonic analysis, compressed sensing, modelling and numerical methods for differential equations, inverse problems, control theory, and information geometry. Additional connections to analytic areas such as convex analysis, differential geometry or Lie groups are welcome. We expect a willingness to collaborate with other groups of the Faculty of Mathematics and Computer Science as well as interest in interdisciplinary co-operations, including within larger collaborative projects. Online application deadline: August 16, 2020. More information: https://www.mia.uni-saarland.de/mda.pdf ------------------------------------------------------- From: Dominique Orban [log in to unmask] Date: August 03, 2020 Subject: Professor Position, Nonlinear Optimization, Montreal The department of Mathematics and Industrial Engineering at Polytechnique Montreal is seeking a to fill an open position in nonlinear optimization. More details are available at the following address: https://www.polymtl.ca/carriere/offres-demploi/professeure-professeur-en-optimisation- non-lineaire ------------------------------------------------------- From: Joachim Weickert [log in to unmask] Date: August 07, 2020 Subject: Postdoc Position, Algorithms for Inpainting-Based Image Compression The Mathematical Image Analysis Group at Saarland University (Saarbrucken, Germany, https:/www.mia.uni-saarland.de) has an opening for a post-doctoral researcher for up to 24 months. The successful candidate will be employed within the ERC Advanced Grant INCOVID (Inpainting-based Compression of Visual Data) for Joachim Weickert. We develop novel methods for lossy compression of images and videos by storing only a small, carefully optimised fraction of the image data (e.g. pixels, derivatives, edges). The missing image structures are interpolated with so-called inpainting techniques that may use variational models, PDEs, integrodifferential equations, patch-based non-local methods, radial basis functions, or deep learning techniques. This requires to model and solve challenging optimisation problems and to develop fast inpainting algorithms. Addressing some of these questions is the central objective of the position. Requirements: PhD in mathematics or computer science with a focus on either non-smooth continuous optimisation, discrete optimisation, numerical methods for PDEs, applied harmonic analysis, sparsity, or machine learning. Experience in variational or PDE-based image analysis is a plus. He/she should be a team player, have a strong publication record, and a good command of the English language. Starting Date: As soon as possible. Salary: German Salary Scale E13. Please e-mail your application (pdf) to Joachim Weickert . It must contain a CV, a transcript of records, a publication list, and the names of two references. Closing date: August 20, 2020 ------------------------------------------------------- From: Stefano Pozza [log in to unmask] Date: August 08, 2020 Subject: Postdoc Position, Krylov Methods, Charles Univ, Czech Rep Postdoc Position, Krylov methods and ODE approximation, Charles Univ, Czech Rep A postdoc position is available within the framework of the Primus Research Programme "A Lanczos-like Method for the Time-Ordered Exponential" at the Faculty of Mathematics and Physics, Charles University, Prague. The appointment period is two years, with the possibility of extension. The anticipated start date is January 2021, although this is negotiable. We are looking for candidates with a strong background in numerical linear algebra. In particular, we seek applicants with expertise in matrix function approximation, Krylov subspace methods, and finite precision analysis. The applicant must hold a Ph.D. degree by the start date. Application deadline: November 9, 2020. More information and application instructions: https://www.starlanczos.cz/open-positions ------------------------------------------------------- From: Stefano Pozza [log in to unmask] Date: August 08, 2020 Subject: PhD Positions, Numerical Mathematics, Charles Univ, Czech Rep Two Ph.D. positions are available within the framework of the Primus Research Programme: "A Lanczos-like Method for the Time-Ordered Exponential" at the Faculty of Mathematics and Physics, Charles University, Prague. The four years of Ph.D. studies will be done under the supervision of Dr. Stefano Pozza (PI of the project) in the Department of Numerical Mathematics. The department offers an international environment at one of the top universities in the Czech Republic, and the oldest university in Central Europe. The students will also have the opportunity to work with external collaborators from France, Italy, and the UK. The applicants must hold a Master's degree by the start date of Spring 2021 (to be announced) and should have a strong interest in numerical linear algebra and numerical analysis. Knowledge of Matlab or other programming languages is necessary. Applicants will have to prove their English language level by passing an exam (it is possible to waive the examination under some conditions, see https://www.mff.cuni.cz/en/admissions/admission-procedure-in-phd-programmes/2020- 2021). Application deadline: November 9, 2020. More information and application instructions: https://www.starlanczos.cz/open-positions ------------------------------------------------------- From: Matthias Schlottbom [log in to unmask] Date: August 06, 2020 Subject: PhD position, Numerical Analysis, Univ of Twente The group Mathematics of Computational Science offers a PhD position (4 years full-time contract) in Numerical Mathematics. The project considers the efficient numerical solution of Maxwell eigenvalue problems for photonic quasicrystals, see https://www.utwente.nl/en/organisation/careers/!/1261550/phd-in-numerical-analysis for details. The application deadline is August 23rd, 2020. Please use the above links to submit applications electronically. ------------------------------------------------------- From: Alex Barnett [log in to unmask] Date: August 06, 2020 Subject: New Deadline, ACOM Special Issue on Integral Equations, Mar 2021 Due to COVID-19, and the uncertainty of the future date of the delayed OCCMIE integral equations BIRS workshop at Oaxaca, we have revised the deadline for submissions for the special issue (topical collection) "Advances in Computational Integral Equations" (ACIE), in the journal Advances in Computational Mathematics (ACOM). The revised deadline is: March 31, 2021. This special issue will go ahead, but no longer be associated with any workshop. As before, submissions from the global research community will undergo ACOM's usual peer-review process. Topics of interest include: boundary integral equations; singular geometries; randomized algorithms; high frequency waves; inverse problems; HPC; software packages; numerical analysis; time-domain. The guest editorial board: Stephanie Chaillat, Adrianna Gillman, Gunnar Martinsson, Michael O'Neil (chair), Alex Barnett, Mary-Catherine Kropinski, and Timo Betcke. For details: https://users.flatironinstitute.org/~ahb/notes/ACOM-ACIE-SI_announce.pdf https://www.springer.com/journal/10444 ------------------------------------------------------- From: David G. Yu [log in to unmask] Date: August 07, 2020 Subject: Contents, Statistics, Optimization and Information Computing, 8 (3) Contents, Statistics, Optimization and Information Computing (SOIC), Volume: 8, Number: 3, September 2020 This issue is available at http://www.iapress.org/index.php/soic Convergence Analysis of a Stochastic Progressive Hedging Algorithm for Stochastic Programming, Zhenguo Mu, Junfeng Yang CQ-free optimality conditions and strong dual formulations for a special conic optimization problem, Olga Kostyukova, Tatiana V. Tchemisova Minimax-robust forecasting of sequences with periodically stationary long memory multiple seasonal increments, Maksym Luz; Mikhail Moklyachuk Sample Paths Properties of Stochastic Processes from Orlicz Spaces, with Applications to Partial Differential Equations, Lyudmyla Sakhno, Yuriy Kozachenko, Enzo Orsingher, Olha Hopkalo A Note on CCMV Portfolio Optimization Model with Short Selling and Risk-neutral Interest Rate, Tahereh Khodamoradi, Maziar Salahi, Ali Reza Najafi Volatility Modelling of the BRICS Stock Markets, Rosinah M Mukhodobwane, Caston Sigauke, Wilbert Chagwiza, Winston Garira Overdisp: A Stata (and Mata) Package for Direct Detection of Overdispersion in Poisson and Negative Binomial Regression Models, Luiz Paulo Lopes Favero, Patricia Belfiore, Marco Aurelio dos Santos, R. Freitas Souza Tail distribution of the integrated Jacobi diffusion process, Nguyen Tien Dung , Trinh Nhu Quynh ------------------------------------------------------- From: Ed Saff [log in to unmask] Date: August 02, 2020 Subject: Contents: Constructive Approximation, 52 (1) Constructive Approximation Volume 52, Issue 1, August 2020 Table of Contents A Discrete Realization of the Higher Rank Racah Algebra, Hendrik De Bie and Wouter van de Vijver On Accumulated Cohen's Class Distributions and Mixed-State Localization Operators, Franz Luef and Eirik Skrettingland Conditionally Positive Definite Matrix Valued Kernels on Euclidean Spaces, J.C. Guella and V.A. Menegatto Zeros of Faber Polynomials for Joukowski Airfoils, N. Levenberg and F. Wielonsky Minimal Soft Lattice Theta Functions, Laurent Betermin Pointwise and Uniform Convergence of Fourier Extensions, Marcus Webb, Vincent Coppe and Daan Huybrechs Correction to: Lattice Algorithms for Multivariate L-infinity Approximation in the Worst-Case Setting, Frances Y. Kuo, Grzegorz W. Wasilkowski, Henryk Wozniakowski Constructive Approximation An International Journal for Approximations and Expansions Published by Springer http://link.springer.com/journal/365 ------------------------------------------------------- End of Digest **************************