Subject: NA Digest, V. 21, # 29 NA Digest Sunday, August 01, 2021 Volume 21 : Issue 29 Today's Editor: Daniel M. Dunlavy Sandia National Labs [log in to unmask] Today's Topics: MFEM Version 4.3 New Book, Quantum Control Theory and Application Industrial Mathematics, Italy, Oct 2021 SIAM Central States Meeting, USA, Oct 2021 Professor Position, Data-driven Simulation of Fluids, Univ of Stuttgart Postdoc Position, Applied Inverse Problems Postdoc Position, Comp Math for Data Science, Emory Univ Postdoc Position, Computational Fluid Dynamics, Univ of Sao Paulo Postdoc Position, Computational Fluid Dynamics, Univ of Sao Paulo Postdoc Position, Image Processing, Univ of Sao Paulo Postdoc Position, Numerical Analysis, Univ of L'Aquila Postdoc Position, Zeroth-Order Optimization & Learning, Argonne Postdoc Positions, Optimal Control and Fluid Mechanics, Portugal PhD Position, Univ Sorbonne Paris Nord, France Contents, Intl J Mathematics and Computer Science, 16 (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: Tzanio Kolev [log in to unmask] Date: July 30, 2021 Subject: MFEM Version 4.3 Version 4.3 of MFEM, a lightweight, general, scalable C++ library for finite element methods, is now available at: https://mfem.org The goal of MFEM is to enable high-performance scalable finite element discretization research and application development on a wide variety of platforms, ranging from laptops to exascale supercomputers. Some of the new additions in version 4.3 are: - Variable order spaces, serial p- and hp-refinement. - Low order refined discretizations, solvers and transfer. - Preconditioners for advection-dominated systems. - Support for GPU solvers from hypre and PETSc. - GPU-accelerated mesh optimization algorithms. - Explicit vectorization for Fujitsu's A64FX ARM microprocessor. - Support for high-order Lagrange meshes in VTK format. - New and improved integrations with FMS, Caliper, libCEED, Ginkgo. - 18 new examples and miniapps. The MFEM library has many more features, including: - 2D and 3D, arbitrary order H1, H(curl), H(div), L2, NURBS elements. - Parallel version scalable to hundreds of thousands of MPI cores. - Conforming/nonconforming adaptive mesh refinement (AMR), including anisotropic refinement, derefinement and parallel load balancing. - Galerkin, mixed, isogeometric, discontinuous Galerkin, hybridized, and DPG discretizations. - Support for triangular, quadrilateral, tetrahedral and hexahedral elements, including arbitrary order curvilinear meshes. - Scalable algebraic multigrid, time integrators, and eigensolvers. - Lightweight interactive OpenGL visualization with the MFEM-based GLVis tool. MFEM is being developed in CASC, LLNL and is freely available under a BSD license. For more details, see the interactive documentation and the full CHANGELOG at https://github.com/mfem/mfem. ------------------------------------------------------- From: Quan-Fang Wang [log in to unmask] Date: July 26, 2021 Subject: New Book, Quantum Control Theory and Application Title: Quantum Control Theory and Application Author: Quan-Fang Wang Publisher: Lambert Academic Publishing https://www.morebooks.shop/bookprice_offer_83fd09b1b85df430744c89db837bce5507fcf 7c5?locale=gb%C2%A4cy=EUR Date: July 21, 2021 ; ISBN: 978-620-2-80240-6 Language: English; Pages number: 488 ; Price: 98.90 Euro In this monograph, recent years published papers on the quantum control had been collected both for theoretical study and numerical approach. The practical application to the quantum systems covered the Klein-Gordon equation; Sine-Gordon equation; Klein-Gordon-Schrodinger equation (KGS); Gross-Pitaevaskii equation (Bose-Einstein Condensates, BEC); Klein-Gordon-Maxwell equation, and so forth. For the particles physics, single particle, couple heavy particles, many body particles problems had been considered in the quantum theory and computational approach. Three parts contained in the book, Part I is Quantum Control of KGS System; Part II is Quantum Control of BEC; Part III is Control of Quantum System. It is certainly hope to connect system control field to chemistry, physics as well as other research areas (aero space, surface science, etc.). Thereby, wish to get much more interest worldwide on the hot topic quantum system control. ------------------------------------------------------- From: WIM2021 Organization Committee [log in to unmask] Date: July 27, 2021 Subject: Industrial Mathematics, Italy, Oct 2021 We are pleased to announce this Call for Abstracts for the 2nd Workshop in Industrial Mathematics - WIM2021 - to be held in Catania, Italy from October 20-22, 2021. The workshop will feature a wide range of exciting talks, discussions, and networking opportunities with experts and researchers in the mathematical fields of 'Optimization and Inverse Problems', 'Coupled Systems' and 'Reduced Order Methods'. The focus on industrial applications will be specifically addressed during an industry-featured session, hosting speakers with direct experience in industrial mathematics. Confirmed plenary speakers: Peter Benner (MPI Magdeburg), Pasqualina Fragneto (ST Microelectronics), Jan S. Hesthaven (EPF Lausanne), Barbara Kaltenbacher (Univ. Klagenfurt), Jan ter Maten (TU Eindhoven), Wil Schilders (Eindhoven University), Claudia Totzeck (Univ. Wuppertal). The Organizing Committee is inviting the community to submit abstracts for oral presentations. All abstracts must be sent as a PDF file via e-mail to [log in to unmask] . Deadline for submission: September 13th, 2021. The workshop will be held in a hybrid format: participants have the option to attend virtually or in-person (we recommend participation on-site). For more details, please visit our website at https://www.romsoc.eu/wim-2021/ ------------------------------------------------------- From: Agnieszka Miedlar [log in to unmask] Date: July 29, 2021 Subject: SIAM Central States Meeting, USA, Oct 2021 2021 SIAM Central States Section 6th Annual Meeting October 2-3, 2021 University of Kansas Lawrence We are kindly inviting you to organize a mini-symposium, present a contributed talk, or poster at the 2021 SIAM Central States Section 6th Annual Meeting. The deadline for submissions is August 25, 2021. Proposals for mini-symposium: https://kusurvey.ca1.qualtrics.com/jfe/form/SV_5pfyAnweI9Yxnp4 Proposals for contributed talk or poster session: https://kusurvey.ca1.qualtrics.com/jfe/form/SV_1ByCtvfq1XccLJA We specially encourage students and young researchers to join the meeting. Plenary Speakers: - Fioralba Cakoni, Rutgers University - Peter Jan van Leeuwen, Colorado State - Dongbin Xu, Ohio State - Xiu Ye, University of Arkansas at Little Rock For more details see siamcss2021.ku.edu ------------------------------------------------------- From: Dominik Göddeke [log in to unmask] Date: July 30, 2021 Subject: Professor Position, Data-driven Simulation of Fluids, Univ of Stuttgart The new professorship aims at a unified perspective on data-integrated simulation science and high performance computing. New approaches combining advanced HPC and data-driven techniques for modeling, simulation, and analysis should be developed for innovative applications in multi-phase flow and/or porous media and in interdisciplinary collaboration between engineering, sciences, mathematics, and computer science. The professorship will be established at the University of Stuttgart in the context of the DFG-funded Cluster of Excellence EXC 2075 "Data-integrated Simulation Science". The professor will be jointly appointed by the Stuttgart Center for Simulation Science (SC SimTech) and the Faculty 6: Aerospace Engineering and Geodesy of the University of Stuttgart. The full announcement is available here: https://www.simtech.uni-stuttgart.de/press/New-job-offer-Professorship-W3-Data-driven- Simulation-of-Fluids-on-High-Performance-Computers/ ------------------------------------------------------- From: Daniel Lesnic [log in to unmask] Date: July 28, 2021 Subject: Postdoc Position, Applied Inverse Problems 6 month post-doc position at the University of Leeds in Applied Inverse Problems, see: https://jobs.leeds.ac.uk/EPSMA1041 (deadline for applications 24 August 2021) ------------------------------------------------------- From: James Nagy [log in to unmask] Date: July 26, 2021 Subject: Postdoc Position, Comp Math for Data Science, Emory Univ The newly funded NSF Research Training Group in Computational Mathematics for Data Science within the Department of Mathematics at Emory University invites applications for a postdoc position. Appointments are normally for two years with the possibility of renewal for a third year. Applicants must be citizens, nationals, or permanent residents of the United States, have a PhD in Mathematics or a closely related field (the PhD must be completed by September 1, 2021 for a Fall 2021 start, or by January 1, 2022 for a Spring 2022 start), and show evidence or promise of excellence in research and teaching. We are especially interested in candidates with research interests broadly related to data science (e.g., data assimilation, machine learning, numerical optimization, linear algebra and PDEs). Candidates must also have a strong background in numerical analysis and scientific computing. For more details about the research activity in Emory's Scientific Computing Group see http://www.mathcs.emory.edu/Research/Area/ScientificComputing/ The successful candidate is expected to engage in all RTG activities. Postdoctoral Fellows will have the opportunity to teach two courses per year (one in Fall and one in Spring semesters), conduct research, collaborate with faculty, and work with undergraduate and graduate students in our dynamic computational mathematics research group. RTG Postdoctoral Fellowships include an allowance for travel and computing equipment, and access to state-of-the-art computing resources, including GPU clusters. Applications should be sent via Interfolio at http://apply.interfolio.com/90818. Screening starts immediately and will continue until positions are filled. Emory University is an equal employment opportunity and affirmative action employer. Women, minorities, people with disabilities and veterans are strongly encouraged to apply. Emory University is committed to student and faculty diversity, equity, and inclusion. ------------------------------------------------------- From: Fabricio Simeoni de Sousa [log in to unmask] Date: July 27, 2021 Subject: Postdoc Position, Computational Fluid Dynamics, Univ of Sao Paulo Project: High-performance computing using multiscale domain decomposition methods. Supervisor: Prof. Fabricio Simeoni de Sousa The Center for Mathematical Sciences Applied to Industry (CeMEAI), a Research, Diffusion and Innovation Center (CEPID) funded by FAPESP and hosted at ICMC-USP, offers a 12-month postdoc fellowship in the area of Computational Fluid Dynamics. The objective is the development of multiscale domain decomposition methods and its implementation in a HPC environment, for the direct numerical simulation of incompressible flows. Candidates must have obtained a PhD in the last 5 years, and must provide at least three authored scientific articles in the field, as well as proof of experience in the implementation of parallel methods in C/C++, in HPC environments. To apply, send the following items (PDF only) by email to prof. Dr. Fabricio Simeoni de Sousa ([log in to unmask]) no later than August 22nd, 2021: 1. Letter of interest, containing complete contact information and year of graduation; 2. Curriculum; 3. Cover letter including names and contact information for two references. Enter "Postdoc - Multiscale" in the subject field of the message. The selected candidate will receive a Post-Doctoral fellowship from FAPESP in the amount of R$ 7,373.10 monthly and a research contingency fund, equivalent to 10% of the annual value of the fellowship which should be spent in items related to the research activity. ------------------------------------------------------- From: Fabricio Simeoni de Sousa [log in to unmask] Date: July 27, 2021 Subject: Postdoc Position, Computational Fluid Dynamics, Univ of Sao Paulo Project: Hybrid particle-mesh methods for large-scale applications of fluid-structure interaction. Supervisor: Prof. Fabricio Simeoni de Sousa The Center for Mathematical Sciences Applied to Industry (CeMEAI), a Research, Diffusion and Innovation Center (CEPID) funded by FAPESP and hosted at ICMC-USP, offers a 12-month postdoc fellowship in the area of Computational Fluid Dynamics for the development and implementation of a particle-mesh model (SPH-FEM or MPS-FEM) coupled by boundary integrals, in order to accelerate large scale numerical simulations of fluid- structure interactions involving free-surface flows and deformable structures. Candidates must have obtained a PhD in the last 5 years, and must provide at least three authored scientific articles in the field, as well as proof of experience in the implementation of parallel methods in C/C++, in HPC environments. To apply, send the following items (PDF only) by email to prof. Dr. Fabricio Simeoni de Sousa ([log in to unmask]) no later than August 22nd, 2021: 1. Letter of interest, containing complete contact information and year of graduation; 2. Curriculum; 3. Cover letter including names and contact information for two references. Enter "Postdoc - Particle Methods" in the subject field of the message. The selected candidate will receive a Post- Doctoral fellowship from FAPESP in the amount of R$ 7,373.10 monthly and a research contingency fund, equivalent to 10% of the annual value of the fellowship which should be spent in items related to the research activity. ------------------------------------------------------- From: Jo Ueyama [log in to unmask] Date: July 27, 2021 Subject: Postdoc Position, Image Processing, Univ of Sao Paulo The Center for Research in Mathematical Sciences Applied to Industry (CEPID-CeMEAI) at the University of Sao Paulo opens a post-doctoral research position in Image Processing. The selected candidate will work at the Institute of Mathematical and Computer Sciences of the University of Sao Paulo in Sao Carlos/SP, Brazil. Sao Paulo Research Foundation provides financial support with a monthly salary of R$ 7.373,10 and a research contingency fund, equivalent to 10% of the annual value of the fellowship which should be spent in items directly related to the research activity. The position is for one year. Project: Image processing for flood detection Supervisor: Prof. Jo Ueyama This position focuses on detecting and forecasting floods using images and thus automating flood identification without human intervention. With such an approach, it will be possible to use only the cameras without a river height sensor submerged in the river. Applicants must have completed, or are nearing completion, a doctorate in Computer Science or related subjects in the past five years. The selection criteria will include demonstrated research capacity in the field of call, a solid background in image processing, machine learning, and English speech and writing skills. It is also desirable that the candidate knows how to work in groups and has the ability to interact with researchers from other areas, such as hydrology. To apply, send the following items by email to Professor Jo Ueyama until 08/31/2021. Professor Ueyama email address is [log in to unmask] Please send the pdf files of the following documents: 1. Letter of interest, containing complete information of contact, year of graduation, and citizenship/immigration status, clearly addressing the research above; 2. Resume; 3. Cover letter including names and contact information for three references. Enter "Postdoc" in the subject field of the message. ------------------------------------------------------- From: Raffaele D'Ambrosio [log in to unmask] Date: July 26, 2021 Subject: Postdoc Position, Numerical Analysis, Univ of L'Aquila A postdoctoral research fellowship in Numerical Analysis is available at the University of L'Aquila, under the scientific supervision of Raffaele D'Ambrosio. The scientific activity covered by the position regards numerical modeling for evolutive problems in space and time, with and without memory, deterministic and stochastic, mainly in the direction of the conservation of qualitative and quantitative properties of the operators under investigation. In line with the scientific objectives of PRIN 2017 project "Structure preserving approximation of evolutionary problems", the scientific activity will deal with the theoretical study of the proposed numerical schemes, the design of mathematical software based on these schemes, the experimental verification of their properties on a wide selection of test problems, their effectiveness in applications. The duration of the position is 12 months (eventually renewable) and the value of the fellowship is 30.000,00 Euro (gross) per year. Closing date: August 15, 2021. For further information and application details, see the website https://www.univaq.it/include/utilities/blob.php?table=assegni_ricerca&id=674&item=bando ------------------------------------------------------- From: Stefan Wild [log in to unmask] Date: August 01, 2021 Subject: Postdoc Position, Zeroth-Order Optimization & Learning, Argonne The Laboratory for Applied Mathematics, Numerical Software, and Statistics (LANS) at Argonne National Laboratory is seeking a postdoctoral researcher in the area of mathematical optimization and machine learning. We value and strive for diversity in backgrounds, experiences, and perspectives. The postdoctoral researcher will work with Argonne staff to design, analyze, and apply methods for derivative-free/zeroth-order optimization especially relevant to challenging classes of scientific machine learning problems. Desired but not required knowledge and interests include: - Analyzing algorithms. - Designing randomized, stochastic, or derivative-free algorithms. - Researching statistical and machine learning techniques. - Developing parallel algorithms and software. Find out more details and apply at https://bit.ly/3xJr8HI US citizenship is not required. Openings are available immediately, but there is flexibility in start dates. ------------------------------------------------------- From: Jorge Tiago [log in to unmask] Date: July 30, 2021 Subject: Postdoc Positions, Optimal Control and Fluid Mechanics, Portugal The Center for Computational and Stochastic Mathematics (CEMAT) at Instituto Superior Tecnico, ULisboa, invites applications for two postdoctoral positions in Optimal Control of PDE's and Fluid Mechanics. The postdoctoral grants require that the candidate has obtained this PhD during the previous 3 years before submitting the application. The research will take place within the scope of the project HemoControl and in collaboration with the team members Adelia Sequeira (CEMAT), Ana Leonor Silvestre (CEMAT), and Alberto Gambaruto (University of Bristol). The application procedures, including submission details, can be found here: Position 1 (Optimal Control of PDEs): https://ist-id.pt/files/sites/43/bl118-ist-id_en-pdf-621kb.pdf Position 2 (Fluid Mechanics): https://ist-id.pt/files/sites/43/bl119-ist-id_en-pdf-632kb.pdf Deadline for submissions: August 10, 2021 For other queries, please contact [log in to unmask] ------------------------------------------------------- From: Emiliano TRAVERSI [log in to unmask] Date: July 28, 2021 Subject: PhD Position, Univ Sorbonne Paris Nord, France One PhD position is opened at Universite Sorbonne Paris Nord, France (these CIFRE). The position is in collaboration with Horizontal Sofware (https://www.horizontalsoftware.com/). Horizontal Software (HSW), created in 2010, is a publisher of SaaS and App solutions, specialized in management and optimized planning of human resources. The E-OPTIM solution provided by HSW is intended for the planning and optimization of human resources, taking into account heterogeneous constraints: legal, organizational and social. A company's performance is closely linked to well-being at work. It is therefore very important to take into account employee preferences in the development of schedules. The goal of the PhD thesis is to develop heuristic algorithms that take into account employee preferences in addition to the standard constraints (legal, organizational and social). This additional requirement poses a severe challenge as it complicates a problem that is already difficult to solve. To overcome this challenge the candidate will use the most advanced techniques in the field of mathematical optimization and artificial intelligence. Required competences: Good experience with mathematical optimization; Knowledge in machine learning and deep learning is considered as a plus; Excellent programming skills. To apply or to have more information, please contact Roberto Wolfler Calvo ([log in to unmask]) and Nora Touati ([log in to unmask]). ------------------------------------------------------- From: Badih Ghusayni [log in to unmask] Date: August 01, 2021 Subject: Contents, Intl J Mathematics and Computer Science, 16 (4) The papers below can be downloaded freely via http://ijmcs.future-in-tech.net/Volume16.4.htm: Thejasvi Nagaraju, Shubamangala B.R., Elicitation of Resilient Requirements through Countermeasure Decomposition Technique. Eiman Jadaan Alenezy, An Integer Programming Formulation of Capacitated Facility Location Problem. Khwancheewa Wattanatripop, Thawhat Changphas, The length of terms and their measurement. Nagornchat Chansuriya, Sarawut Phuapong, Structural Properties and Submonoids of Generalized Cohypersubstitutions. Daya K. Nagar, Edwin Zarrazola, Alejandro Roldan-Correa, A bivariate distribution whose marginal laws are inverted beta and gamma. W. Mohammed, M. Abdelrahman, H. Boulares, F. Khelifi, E. Elabbasy, E. Aly, The exact solutions for the nonlinear Schrodinger equation forced by multiplicative noise on Ito sense. Wasim Audeh, Hilbert-Schmidt numerical radius inequalities for 2x2 operator matrices. Khaldoun Al-Zoubi, Shatha Alghueiri, On graded J_{gr}-2-absorbing and graded weakly J_{gr}-2-absorbing submodules of graded modules over graded commutative rings. Yousef F. Alharbi, Study on Moments of Generalized Order Statistics from Lomax-Exponential Distribution and Characterization. Raden Sulaiman, Separability of Intuitionistic Fuzzy Relations. Syaiful Anam, Zuraidah Fitriah, Early Blight Disease Segmentation on Tomato Plant Using K-means Algorithm with Swarm Intelligence-based Algorithm. K. Rauf, I. A. Ogunleke, Extension of Polarity in a Signed Transformation Semigroup. S. A. Syed Ali, L. S. Supian, S. Shafie, Equivalent formulations for Economic Lot-sizing Problem with Remanufacturing and Joint Setups. A. A. Ramadan, E. Hamouda, A. Seif, Generalized soft bi-ideals over semigroups. Stephanie Dorough, Peter Johnson, Rainbow Connectivity and Proper Rainbow Connectivity of theta(1,s,t). Devendra Kumar, Azza M. Alghamdi, Generalized Lower Order and Approximation of Entire Transcendental Functions of Several Complex Variables in Some Banach Spaces. Matthew O. Oluwayemi, Joshua O. Okoro, Certain results on a class of functions with negative coefficients. Fancy V. F., V. Jude Annie Cynthia, Local Metric Dimension of Certain Wheel Related Graphs. Alvaro H. Salas, New Method for Solving Nonlinear equations. Peter Johnson, Fadekemi Janet Osaye, On edge-weighted mean eccentricity of graphs. C. Nontpa, C. Kesamoon, N. Kaewhawong, P. Intrapaiboon, A New Hybrid Forecasting Using Decomposition Method with SARIMAX Model and Artificial Neural Network. Laila A. Alnaser, Makkia Dammak, Biharmonic problem with indefinite asymptotically linear nonlinearity. Moin Akhtar Ansari, Rough Set Theory Applied to JU-algebras. Jatuporn Sanborisoot, Thawhat Changphas, Ordered semigroups in which the radical of every quasi-ideal is a subsemigroup. Alvaro H. Salas, Lorenzo J. Martinez, David L. Ocampo, Trigonometric Solution to the Pendulum Equation. Ramzi B. Albadarneh, Iqbal M. Batiha, Adel Ouanna, Shaher Momani, Modeling COVID-19 Pandemic Outbreak using Fractional-Order Systems. Fadi Alrimawi, Some norm inequalities of Davidson-Power type. Supawadee Prugsapitak, On the set of solutions of x^2-axy-y^2 = \pm 1 over some finite fields. Mona Sakkijha, Eman Aldabbas, Omar Yasin, Numerical radius inequalities involving accretive-dissipative matrices. Wikanda Phaphan, R Package for the Two-Parameters Crack Distribution. Hadeel Hadi Abo-Alsood, Hassan Rashed Yassein, Design of an Alternative NTRU Encryption with High Secure and Efficient. Kelly Guest, Andrew Johnson, Peter Johnson, William Jones, Yuki Takahashi, Zhichun (Joy) Zhang, Graphs with prescribed radius, diameter, and center. J. V. L. Chew, J. Sulaiman, F. A. Muhiddin, Numerical evaluation on the solution of the porous medium equation by 4-Point Newton-Explicit Group. Nada Sabeeh Mohammed, Areej M. Abduldaim, Algebraic Hessenberg Decomposition Method Optimized by Genetic Algorithm for Zero Watermarking Technique. Sarah Hussain Shahhadi, Hassan Rashed Yassein, A New Design of NTRUEncrypt-analog Cryptosystem with High Security and Performance Level via Tripternion Algebra. Alvaro H. Salas, Lorenzo J. Martinez, David L. Ocampo, Analytical and Approximate Trigonometric Solution to Duffing-Helmholtz Equation. Ibtisam A. H. Masmali, Pythagorean Picture Fuzzy Hyperideals in Semihypergroups. Ming-Ming Xu, Jumat Sulaiman, Labiyana Hanif Ali, Half-Sweep SOR Iterative Method Using Linear Rational Finite Difference Approximation for First-Order Fredholm Integro-Differential Equations. R. Stalin Mary, Indra Rajasingh, Embedding of Recursive Circulant RC(2^{n}, 4) into Circular Necklace. Nada Yassen Kasm Yahya, Emad Bakr Al-Zangana, The Non-existence of [1864,3,1828]_{53} Linear Code by Combinatorial Technique. Fatema A. Sadiq, Shatha A. Salman, Raghad I. Sabri, The General Formula for the Ehrhart Polynomial of Polytopes with Applications. Tammatada Khemaratchatakumthorn, Duangpon Siriwan, Pasting Lemmas for b-Metric Preserving and Related Functions. Niphawan Phoopha, Prapanpong Pongsriiam, Notes on 1089 and a Variation of the Kaprekar Operator. Anwar Khaleel Faraj, Areej M. Abduldaim, Commutativity and Prime Ideals with Proposed Algebraic Identities. Aiyared Iampan, Ronnason Chinram, Pattarawan Petchkaew, A note on almost subsemigroups of semigroups. Alvaro H. Salas, Analytical Approximant for a Damped KdV Equation. Silas Luliro Kito, Gerald Wanjala, The Toeplitz-Hausdorff and Spectral Inclusion Theorems for Linear Relations. Alvaro H. Salas, Elementary Solution to the Damped Pendulum. Natdanai Chailangka, Apisit Pakapongpun, Neo balancing numbers. Salah Uddin Mohammad, Md. Rashed Talukder, Interpretations of Kronecker product and ordinal product of poset matrices. Thodsaporn Kumduang, Khwancheewa Wattanatripop, Thawhat Changphas, Tree languages with fixed variables and their algebraic structures. Khwancheewa Wattanatripop, Thodsaporn Kumduang, Sorasak Leeratanavalee, Thawhat Changphas, Power Menger algebra of terms induced by order-decreasing transformations and superpositions. Julian A. D. Allagan, Benkam Bobga, Dominion of Some Graphs. Jeeraporn Thaithanan, Wandee Wanishsakpong, Thammarat Panityakul, Dulyawit Prangchumpol, The Efficiency of Ridge Estimations for Multicollinearity Multiple Linear Regression: A Monte-Carlo Simulation- Based Study. Fares Bekhouche, Iryna Komashynska, Traveling wave solutions for the space-time fractional (2+1)-dimensional Calogero-Bogoyavlenskii-Schiff equation via two different methods. Abdulrahman Balfaqih, Hailiza Kamarulhaili, Corrigendum to: On The Diophantine Equation (132k)^x + (4355k)^y = (4357k)^z. C. Sahatsathatsana, S. Sahatsathatsana, W. Pimpasalee, Error estimation for nonoverlapping success runs with length k via Stein-Chen method. Ansam Nazar Younis, Fawziya Mahmood Ramo, Detecting Skin Cancer Disease Using Multi Intelligent Techniques. Hessa Alharbi, Makkia Dammak, Existence of solutions to fourth order problems with sign-changing weights. Raffaele D'Ambrosio, Martina Moccaldi, Beatrice Paternoster, Adapted numerical modeling for advection-reaction-diffusion problems on a bidimensional spatial domain. Amira A. Ishan, A Classification of Totally Umbilical Semi-invariant Submanifolds of Riemannian Product Manifolds. ------------------------------------------------------- End of Digest **************************