[External Email] Subject: NA Digest, V. 20, # 9 NA Digest Tuesday, March 03, 2020 Volume 20 : Issue 9 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: Announcement of solution to 3x + 1 Problem Solvers for Fractional Diffusion Problems, UK, Apr 2020 Symposium Honoring Prof. Hans J. Stetter, Austria, Apr 2020 ALAMA2020-ALN2gg Meeting, Spain, Jun 2020 ICOSAHOM 2020, Austria, Jul 2020 Deadline extended, EUROPT 2020, France, Jul 2020 Summer School, Computational Photonics, Germany, Sep 2020 Senior Lecturer/Assoc Professor Position, NA, Optimization, Optimal Control Junior Professor Position, Applied Mathematics in the Natural Sciences, Goettingen PhD Position, Numerical methods and data assimilation, SINTEF, Norway Contents, Mathematics and Computer Science, 15 (2) Contents, Siberian Journal of Numerical Mathematics, 23 (1) Contents, Statistics, Optimization and Information Computing, 8 (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: Peter Schorer [log in to unmask] Date: March 02, 2020 Subject: Announcement of solution to 3x + 1 Problem A Solution to the 3x + 1 Problem I continue to believe I have solved this very difficult problem. In more than two years, I have received no claims of errors in the first two proofs of the 3x + 1 Conjecture (a proof solves the Problem) from visitors to the paper. Recently, I discovered a third proof of the Conjecture that is only four pages long! No claims of errors so far. But no journal will consider the paper because of the difficulty of the Problem, and the fact that I am not an academic mathematician (my degree is in computer science, and most of my career has been spent as a researcher in the computer industry). So I am looking for a mathematician who will help me prepare the paper for submission to a journal, and who will write the editor stating the mathematician's belief that the paper is worthy of publication. The paper is "A Solution to the 3x + 1 Problem", on occampress.com. Peter Schorer, [log in to unmask] ------------------------------------------------------- From: Jen Pestana [log in to unmask] Date: March 01, 2020 Subject: Solvers for Fractional Diffusion Problems, UK, Apr 2020 We are pleased to announce a Workshop on Fast Solvers for Fractional Diffusion Problems that will take place on April 2, 2020 at the University of Strathclyde, Glasgow, UK. This workshop will bring together those actively working on solvers for fractional diffusion problems, and researchers whose tools and expertise may help to solve some of the remaining challenges in the field. The invited speakers are: Lehel Banjai (Heriot-Watt) Iain Duff (STFC) Stefano Massei (EPFL, Eindhoven) Mariarosa Mazza (Insubria) Spyros Pougkakiotis (Edinburgh) Andy Wathen (Oxford) Everyone is most welcome to attend. There is no fee, but we ask that you please register at the link below for catering purposes. https://www.fracdiffpreconditioners.net/events ------------------------------------------------------- From: Dirk Praetorius [log in to unmask] Date: March 02, 2020 Subject: Symposium Honoring Prof. Hans J. Stetter, Austria, Apr 2020 In honor of the 90th birthday of Prof. Hans J. Stetter, the Institute for Analysis and Scientific Computing of TU Wien organizes a symposium on Friday April 17, 2020. It will consist of two parts: (1) in the morning, an informal Get-Together with Hans and his wife Christine, former colleagues, and friends; (2) in the afternoon, a mathematical colloquium on "New numerical trends in differential equations and computer algebra". Speakers: Prof. Wolfgang Hackbusch (MPI Leipzig, Germany), Prof. Ernst Hairer (Univ. of Geneva, Switzerland), Prof. Martin Kreuzer (Univ. of Passau, Germany). We have also installed an electronic guestbook, where all former colleagues and friends are kindly asked to leave a note, independently of whether they will be present at 17th April or not. Homepage: https://www.asc.tuwien.ac.at/stetter90/ There are no registration fees, neither for the Get-Together nor for the mathematical colloquium. However, we kindly ask all participants to register via email to Ursula Schweigler before March 31, 2020. ------------------------------------------------------- From: FERNANDO DE TERAN VERGARA [log in to unmask] Date: February 27, 2020 Subject: ALAMA2020-ALN2gg Meeting, Spain, Jun 2020 This is an announcement of the ALAMA2020-ALN2gg Meeting that will be held at Universidad de Alcala (Alcala de Henares, Madrid, Spain) from 3rd to 5th June 2020. The important dates are: - Abstract's submission: Extended until 15 March 2020 (included)! - Acceptance date: Until 23 March 2020 - Early bird registration: Until 12 April 2020 - Last day for registration: Until 31 May 2020 In the web page www.alama2020.com you can find all the information related to the Meeting. We are pleased to inform that the journal Linear and Multilinear Algebra (https://www.tandfonline.com/toc/glma20/current) will publish a special issue of original articles presented at the Meeting. This special number is subject to the standard peer review process of the journal. This edition is celebrated in the honor of Ion Zaballa, professor at Universidad del Pais Vasco, and of Dario A. Bini, professor at Universita di Pisa. ------------------------------------------------------- From: Jens Markus Melenk [log in to unmask] Date: March 01, 2020 Subject: ICOSAHOM 2020, Austria, Jul 2020 The International Conference on Spectral and High Order Methods (ICOSAHOM) will take place in Vienna, July 6-10, 2020. The deadline for abstract submissions (in particular, for contributed talks) is March 15. Details concerning the conference, the submission procedure as well as deadlines for the submission of abstracts can be found on the conference webpage at http://icosahom2020.org The purpose of the ICOSAHOM conference series is to bring together researchers and practitioners with an interest in the theoretical, computational and applied aspects of high-order and spectral methods for the solution of differential equations. ------------------------------------------------------- From: Sonia Cafieri [log in to unmask] Date: March 02, 2020 Subject: Deadline extended, EUROPT 2020, France, Jul 2020 The EUROPT 2020 Workshop, the annual event of the EUROPT Continuous Optimization working group of EURO, will be held in Toulouse, France, on July 1-3. It will bring together researchers from Europe and around the globe for stimulating discussions on the latest developments in continuous optimization. We are pleased to announce the following deadline extensions: -Abstract Submission: Extended to March 22, 2020 -Abstract Acceptance: Extended to April 5, 2020 -Registration deadline: Extended to May 6, 2020 Plenary Speakers: - Claudia D'Ambrosio (CNRS, France) - Martine Labbe (Universite Libre de Bruxelles, Belgium) - Oliver Stein (Karlsruhe Institute of Technology, Germany) EUROPT Fellow Lecture by Manlio Gaudioso (Universita della Calabria) Authors are invited to submit abstracts through the EURO submission system at http://www.euro-online.org/conf/europt2020/ Informations on organised sessions are available at http://europt2020.recherche.enac.fr/?page_id=19 Please contact the organisers to contribute to the sessions. Registration is open at http://europt2020.recherche.enac.fr/?page_id=21 More detailed information about EUROPT 2020 are disseminated via the website http://europt2020.recherche.enac.fr/. ------------------------------------------------------- From: Willy Doerfler [log in to unmask] Date: March 02, 2020 Subject: Summer School, Computational Photonics, Germany, Sep 2020 Summer School "Computational Photonics" at Karlsruhe Institute of Technology, September 21-25, 2020. In this one week summer school world leading experts from both mathematics and theoretical physics give a concise introduction to important concepts and recent developments in the field of Computational Photonics. The lectures will be complemented by computer tutorials to provide insights into the implementation and performance of various algorithms. Speakers: Sven Burger (ZIB Berlin), Christin David (U Jena), Andrei Lavrinenko (DTU Denmark), Owen Miller (Yale), Lothar Nannen (TU Vienna), Philipp Schneider (ZIB Berlin), Ole Sigmund (DTU Denmark), Barbara Verfurth (U Augsburg). For more details see http://www.waves.kit.edu/summerschool2020.php Online application is open. Please note that the number of participants is limited. There is no fee. ------------------------------------------------------- From: MONTAZ [log in to unmask] Date: March 02, 2020 Subject: Senior Lecturer/Assoc Professor Position, NA, Optimization, Optimal Control UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG, FACULTY OF SCIENCE School of Computer Science and Applied Mathematics SENIOR LECTURER/ASSOCIATE PROFESSOR (NUMERICAL ANALYSIS AND OPTIMIZATION/OPTIMAL CONTROL) Description: The School of Computer Science and Applied Mathematics undertakes high-quality research in a wide variety of areas and is home to several NRF rated scientists. In the domain of Applied Mathematics the School's main research areas include symmetry methods of differential equations, mathematical modelling, control theory, optimization, numerical analysis and fluid mechanics. Furthermore, research areas are in mathematics of finance, which include but not limited to portfolio optimization, risk management, risk measurement, stochastic processes in finance and interested rate modelling. We seek applicants with research and teaching experience in the area of numerical analysis or computational techniques. Qualifications: For senior lecturer: Applicants must hold a doctorate in numerical analysis teaching experience at a tertiary institution, particularly numerical analysis and Optimization/Optimal Control. The following factors will be taken into account, (i) evidence of potential research and supervision of postgraduate students, (ii) teaching experience, and (iii) academic citizenship. For Associate Professor: Applicants must hold a doctorate in numerical analysis and have a minimum of five years teaching experience at a tertiary institution, particularly numerical analysis and Optimization/Optimal Control. The incumbent research interest and directions beyond PhD studies must be in the area of numerical analysis and optimization/optimal control. Furthermore, the incumbent must have a sustained research record and publications in recognised journal and or scholarly books. Further, evidence of postgraduate supervision is a necessary. The South African National Research Foundation rating is advantageous (if available). Duties: The successful applicant will be expected to teach numerical analysis, optimization and optimal control at undergraduate and postgraduate levels, supervise and/or co-supervise postgraduate students, participate in academic administration and develop a productive research programme. Applications: Submit a covering letter accompanied by a detailed updated curriculum vitae, NRF rating (if available), description of research interests, a teaching portfolio, certified copies of all educational qualifications and identity document, and names and e-mail addresses of three referees. To apply: External applicants are invited to apply by registering their profile on the Wits i-Recruitment platform located at https://irec.wits.ac.za and submitting applications. Internal employees are invited to apply directly on Oracle by following the path: iWits /Self Service application/"Apply for a job". Correspondence will be entered into with short-listed candidates only. Short-listed applicants must be available for a personal or telephonic/Skype interview, and the presentation of a short seminar on the proposed line of research may be required. Closing date: 30 April 2020 ------------------------------------------------------- From: Gerlind Plonka-Hoch [log in to unmask] Date: February 27, 2020 Subject: Junior Professor Position, Applied Mathematics in the Natural Sciences, Goettingen The Institute of Numerical and Applied Mathematics at the University of Goettingen invites applications for a Junior Professor Position (W1) on Applied Mathematics in the Natural Sciences to begin at the earliest possible date. We seek to appoint a researcher with an excellent Ph.D. thesis and a core expertise in applied mathematics with relations to model-based data analysis in the natural sciences. The successful candidate is expected to have experience in interdisciplinary research and to support a planned collaborative research center with experimental scientists. Connections to at least one of the research directions already represented at the institute are desired. Teaching obligations comprise courses in the Bachelor, Master, and PhD programs of mathematics as well as the Bachelor program "Mathematical Data Science". The university puts emphasis on research-oriented teaching. Application deadline is March 22, 2020. The full job advertisement with more important information can be found at http://www.uni-goettingen.de/de/305402.html?cid=14883 For further information, please contact Prof. Dr. Thorsten Hohage, [log in to unmask] ------------------------------------------------------- From: Havard Heitlo Holm [log in to unmask] Date: March 03, 2020 Subject: PhD Position, Numerical methods and data assimilation, SINTEF, Norway The Computational Geosciences group at SINTEF is looking for a PhD candidate for a new project on localized ocean forecasting. The candidate will conduct research on high performance simulation of simplified ocean models and data assimilation, and will be admitted to the PhD program at the Department of Mathematical Sciences, NTNU. For full announcement, contacts, and instructions on how to apply, please see: https://candidate.hr-manager.net/ApplicationInit.aspx? cid=1131&ProjectId=144532&DepartmentId=18961&MediaId=5 ------------------------------------------------------- From: Badih Ghusayni [log in to unmask] Date: February 28, 2020 Subject: Contents, Mathematics and Computer Science, 15 (2) Contents of Volume 15, no. 2 of the International Journal of Mathematics and Computer Science (Open Access): Abdulghani Ragaa Alharbi, Numerical investigation for the GRLW equation using Parabolic Monge Ampere Equation. B. O. Oyelami, S. A. Bishop, Impulsive Jump-Diffusion Models For Pricing Securities. Roberto Amato, A note on Pythagorean Triples. Aqeel Ketab Al-Khafaji, On initial Coefficients Estimates for Certain New Subclasses of Bi-Univalent Functions Defined by a Linear Combination. Auni Aslah Mat Daud, Some issues on the mathematical modeling of population dynamics using differential equations. Shaymaa Amer Abdul-Kareem, Minimal Quasi Injective S-Acts. Julian Benali, Harris Cobb, Peter Johnson, An Enumeration Problem Arising From a Result About Arithmetic Progressions. N. Priyobarta, Y. Rohen, M. B. Devi, Partial Ab-metric space and some fixed point theorems. A. Z. Ansari, F. Shujat, G. Alhendi, Ideals, Centralizers and Symmetric Bi-derivations on prime rings. Fuad A. Abushaheen, Hani Kawariq, Fadi Alrimawi, On p-monotone T2-spaces. Utsanee Leerawat, Siriporn Lapuangkham, Generalized Centralizing and Skew-Centralizing Mappings on Rings. H. Shelash, M. G. Mohsin, M. S. Abdulhussein, Computing the number of subgroups and normal, cyclic, maximal, minimal and Sylow subgroups of the direct product Group D2n xC2. T. Manikantan, S. Ramkumar, Pseudo Symmetric Ideals and Pseudo Symmetric Near-rings. Koichi Arimoto, On LLL lattice basis reduction over imaginary quadratic fields by introducing reduction parameters. Uzoamaka A. Ezeafulukwe, Maslina Darus, Olubunmi A. Fadipe- Joseph, The q-analogue of Sigmoid Function in the space of univalent \lambda-Pseudo star-like Functions. David Coronado, Domingo Quiroz, The zero sum Ramsey numbers of the join of two graphs. Napassanan Srisarakham, Montri Thongmoon, A new iterative method based on Newton-Cotes formula for system of nonlinear equations. Abdullah Yigit, Cemil Tunc, On the stability and admissibility of a singular differential system with constant delay. V. Jude Annie Cynthia, A. Kavitha, On 2 and 3-Rainbow Domination Number of Circulant Graph. Chitlada Somsup, Utsanee Leerawat, Congruences and homomorphisms on n-ary semigroups. Vrishab Krishna, Generalizing Abundancy Index to Gaussian Integers. R. Memon, I. A. Memon, M. A. Panhwar, T. Rafique, A. H. Soomro, Importance of Clinical Applications to Design and Manufacture a Surgical Template through Computer-Aided Design. Ahlam Fallatah, On rings and symmetric generalized biderivations. N. A. Carella, Addendum and Corrigendum-Densities of Primes and Primitive Roots. Genki Shibukawa, An elliptic analogue of Fukuhara's trigonometric identities. ------------------------------------------------------- From: Siberian Journal of Numerical Mathematics [log in to unmask] Date: March 01, 2020 Subject: Contents, Siberian Journal of Numerical Mathematics, 23 (1) CONTENTS, Siberian Journal of Numerical Mathematics Volume 23, No. 1, 2020 For information to contributors and about subscriptions see http://www.sscc.ru/SibJNM/ Kozelkov A.S., Lashkin S.V., Kurkin A.A., Kornev A.V., Vyalykh A.M., Effective implementation of the parallel SIMPLE algorithm based on multigrid method (in Russian) Xu C., A priori error estimates and superconvergence of splitting positive definite mixed finite element methods for pseudo-hyperbolic integro- differential optimal control problems (in Russian) Levykin A.I., Novikov A.E., Novikov E.A., $(m,k)$-schemes for stiff systems of ODEs and DAEs (in Russian) Litvenko K.V. and Prigarin S.M., Convergence of numerical spectral models of the sea surface undulation (in Russian) Mastryukov A.F., The finite-difference scheme for one-dimensional maxwell's equations (in Russian) Mohanty R.K., Sharma S., Fourth-order numerical scheme based on half-step non-polynomial spline approximations for 1D quasi-linear parabolic equations (in Russian) Paasonen V.I., Classification of difference schemes of the maximum possible accuracy on extended symmetric stencils for the Schr$\ddot{o}$dinger equation and the heat transfer equation (in Russian) ------------------------------------------------------- From: David G. Yu [log in to unmask] Date: February 29, 2020 Subject: Contents, Statistics, Optimization and Information Computing, 8 (1) Statistics, Optimization and Information Computing (SOIC), Volume: 8, Number: 1 March 2020 http://www.iapress.org/index.php/soic/index Research Articles: 1.Dariush Jamali, Mehdi Amiri, Ahad Jamalizadeh, N. Balakrishnan, Integral stochastic ordering of the multivariate normal mean-variance and the skew-normal scale-shape mixture models 2.Hamid Esmaeili, Fazlollah Lak, Emrah Altun, The Ristic-Balakrishnan odd log-logistic family of distributions: Properties and Applications 3.Christophe Chesneau, Hassan S Bakouch, Muhammad Nauman Khan, A weighted transmuted exponential distributions with environmental applications 4.Ali Hassan Abuzaid, Enass Abed, Abdu Atta, Esam Mahdi, An Alternative Diagnostic Procedure for Meta-Regression 5.Vahid Fakoor, Masoud Ajami, Seyed Mahdi Amir Jahanshahi, Ali Shariati, A Density-Based Empirical Likelihood Ratio Approach for Goodness-of-fit Tests in Decreasing Densities 6.Renu Garg, Madhulika Dube, Hare Krishna, Estimation of Parameters and Reliability Characteristics in Lindley Distribution Using Randomly Censored Data 7.Mohamed Laidi, Abdelaziz Rassoul, Hamid Ould Rouis, Improved Estimator of the Conditional Tail Expectation in the case of heavy-tailed losses 8.Safeih Daneshi, Ahmad Nezakati, Saeid Tahmasebi, Weighted Cumulative Residual (Past) Inaccuracy For Minimum (Maximum) of Order Statistics 9.YU. V. Kozachenko, Antonina Tegza, N. V.Troshki, The accuracy of modeling of Gaussian stochastic process in some Orlicz spaces 10.Saba Infante, luis sanchez, Aracelis Hernandez, Stochastic models to estimate population dynamics 11.Ivan Matsak, Mikhail Moklyachuk, On Distributions of One Class of Random Sums and their Applications 12.Abubakar Sani Halilu, Mohammed Yusuf Waziri, Yau Balarabe Musa, Inexact Double Step Length Method For Solving Systems Of Nonlinear Equations 13.Nasser Sweilam, S. M. AL-Mekhlafi, A. O. Albalawi, On the Distributed Order Fractional Multi-Strain Tuberculosis Model: a Numerical Study 14.Ramu Dubey, Deepmala, Vishnu Narayan Mishra, Higher-order symmetric duality in nondifferentiable multiobjective fractional programming problem over cone contraints 15.Abdullah, Vector-valued nonuniform multiresolution analysis related to Walsh function 16.Hadi Alizadeh Noughabi, Havva Alizadeh Noughabi, Jalil Jarrahiferiz, Informational Energy and Entropy Applied to Testing Exponentiality 17.Farid shayesteh, Reihaneh Kardehi Moghaddam, Improving firefly- based multi-objective optimization based on attraction law and crowding distance 18.Zubair Khan, Syed Shakaib Irfan, M. Firdosh Khan, P. Shukla, An itertive algorithm with error terms for solving a system of implicit n- variational inclusions 19.Masoumeh Kheirkhahzadeh, Morteza Analoui, A Consensus Clustering Method for Clustering Social Networks 20.Hamed Fazlollahtabar, Minoo Talebi Ashoori, Business Analytics using Dynamic Pricing based on Customer Entry-Exit Rates Tradeoff 21.Mohamed Aliane, Nacima Moussouni, Mohand Bentobache, Optimal control of a rectilinear motion of a rocket 22.Sergey S Yulin, Irina N Palamar, Probability Model Based on Cluster Analysis to Classify Sequences of Observations for Small Training Sets 23.Hamid Esmaeili, Fazlollah Lak, Morad Alizadeh, Mohammad esmail Dehghan monfared,The Alpha-Beta Skew Logistic Distribution: Properties and Applications 24.Mohammad M Islam, Erik L Heiny, A Robust Statistical method to Estimate the Intervention Effect with Longitudinal Data ------------------------------------------------------- End of Digest **************************