
Plenary Speakers
Preda Mihăilescu
Professor,
Mathematisches Institut,
GeorgAugustUniversity,
Goettingen, Germany 
Homepage: https://www.unimath.gwdg.de/preda/
Short Bio: Preda Mihăilescu is professor to Mathematisches Institut, GeorgAugustUniversity, Goettingen (Germany). He studied mathematics and computer science at ETHZürich (Switzerland), where he received his doctorate in 1997, with the thesis Cyclotomy of rings and primality testing.
In 2002 he succeeds in demonstrating a famous conjecture made in 1844 by the mathematician Eugène Catalan. The result is known today as Mihăilescu's theorem.
Some talks: Invited lecture at Fourth European Congress in Matematics Stockholm, Sweden, June 27  July 2, 2004; plenary talk at British Mathematical Society Colloqium Newcastle upon Tyne 1013 April 2006; invited lectures at Frontiers in Mathematics Lecture Series Texas A&M University Department of Mathematics; invited lecture at Cambridge University Kuwait Foundation Lecture, invited lecture at Transilvania University of Brasov in 2019.
Research interests: Iwasawa Theory, Diophantine Equations, Algorithmic Number Theory, Biometry and Security
Publications in J. Number Theory, Lecture Notes in Comput. Sci., J. Reine Angew. Math. and many others. He is the editor of the book Contributions in Analytic and Algebraic Number Theory edited together with Valentin Blomer to Springer, 2012.

Erdal Karapinar
Department of Medical Research, China Medical University, Taichung, TAIWAN

Homepage: https://erdalkarapinar.wordpress.com/
Short Bio: Erdal Karapinar is visiting professor at China Medical University, Taichung, TAIWAN and full professor at Cankaya University in Ankara, Turkey since 2020. He was full professor in the Department of Mathematics at the Atilim University Ankara Turkey (20162019).
Publications: He is author of more than 350 articles most of which are published in international ISI journals. He is the author of the book Fixed Point Theory in Metric Type Spaces (with R.P. Agarwal, D. O’Regan, A.F. RoldánLópezdeHierro), Springer International Publishing (2015).
He is highly cited researcher from 20142019 according to Clarivate Analysis database. Research interests: Fixed Point Theory, Best Proximity Point Theory, Linear Topological Invariants, Isomorphisms of Cartesian products of ℓpower series spaces, ℓKöthe Spaces, Fréchet Spaces, Orlicz Spaces. Current research interests of E. Karapinar is centered on: Fixed point theory and its applications.
EditorinChief:
Advances in the Theory of Nonlinear Analysis and its Applications (Since 2017)
Associate Editor : Fixed Point Theory (ClujNapoca, Romania); Fixed Point Theory and Applications (Springer); FILOMAT (Nis Univ., Serbia); Bulletin of Mathematical Analysis and Applications (ilirias, Albania) Journal of Nonlinear Analysis and Optimization: Theory & Applications (Naresuan Univ., Thailand) The Journal of Advanced Mathematical Studies (Romania) Journal of Mathematical Analysis (ilirias, Albania); Communications in Nonlinear Analysis (Iran); Functional Analysis, Approximation & Computation (Serbia); Indian Journal of Mathematics (Allahabad Mathematical Society, India); Bulletin of the Allahabad Mathematical Society (Allahabad Mathematical Society,India); TWMS Journal of Pure and Applied Mathematics (BSU Institute of Applied Mathematics, Azerbaijan); Journal of Nonlinear and Convex Analysis (Yokohoma publishing, Japan)
Guest Associate EditorinChief (indexed by Web of Science) (selection)
Advances in Difference Equations (Springer, 2021) Mathematics (MDPI 2019), Symmetry (MPDI 2019), Journal of Inequalities and Applications (Springer 2016)

Marian Gidea
Professor, Department of Mathematical Sciences Chair, Mathematical Sciences, Stern College Chair, Division of Natural Sciences and Mathematics
Director, Graduate Program in Mathematics Yeshiva University New York, USA

Homepage: https://www.yu.edu/faculty/pages/gideamarian
Short Bio: Marian Gidea joined Yeshiva University in New York City in 2013. He held previous appointments at the Mathematical Sciences Research Institute in Berkeley (research professor, 2018), the Institute for Advanced Study in Princeton (member, 20112013), Northeastern Illinois University (tenured professor, 20002013), Northwestern University (visiting assistant professor, 19992000), Loyola University Chicago (visiting assistant professor, 19971999).
Research interests: Dynamical Systems and its applications  including Celestial Mechanics, Mathematical Physics, Mathematical Biology, and Financial Mathematics , and Topological Data Analysis.
Publications in Communications on Pure and Applied Mathematics, Journal of the European Mathematical Society, Journal of Differential Equations and many others. He is the author of the book Differential Geometry and Topology: with a view to dynamical systems (with K. Burns), CRC Press, 2005.
Editor of Communications in Nonlinear Science and Numerical Simulation.
Associate editor of Qualitative Theory of Dynamical Systems, International Journal of Bifurcation and Chaos and Discontinuity, Nonlinearity, and Complexity.
Member of the Editorial Board of Discrete and Continuous Dynamical Systems, Series S and Transactions of Nonlinear Science and Complexity, World Scientific.

Detlef Streitferdt
Leader of the Teaching Group Informatics at the Technische Universität Ilmenau, Thuringia, Department of Computer Science and Automation, Ilmenau, Germany

Homepage: https://www.tuilmenau.de/swarchpl/
Short Bio:
Detlef Streitferdt is the leading the Teaching Group Informatics at the Technische Universität Ilmenau since 2019. Before that he was leading the leading the Software Architectures and Product Lines group. The research fields are the efficient development of software architectures and product lines, their analysis and their assessment as well as software development processes and modeldriven development. He was Principal Scientist at the ABB AG Corporate Research Center in Ladenburg, Germany, where he started 2005. He was working in the field of software development for embedded systems. Detlef studied Computer Science at the University of Stuttgart and spent a year of his studies at the University of Waterloo in Canada and graduated 1999. He received his doctoral degree from the Technical University of Ilmenau in the field of Requirements Engineering for Product Line Software Development in 2004.
Research interests:
Efficient development of software architectures in different application domains, analysis and assessment of software architectures, methods and tools for software development.
Publications in Communications in Computer and Information Science book series (Springer), Advancing Embedded Systems and RealTime Communications with Emerging Technologies (IGI Global Book), IEEE COMPSAC Conference.

Javad Tayyebi
Associate Professor
Department of Industrial Engineering
Faculty of Computer and Industrial Engineering
Birjand University of Technology
Birjand, Iran 
Homepage: http://alum.sharif.edu/~javadtayyebi/
Short Bio: Javad Tayyebi is an associate professor at Department of Industrial Engineering, Birjand University of Technology, Iran (20212022). He was an assistant professor at the same department since 2016. He received several research rewards in his country, such as the reward of young researcher.
Research interests: Network optimization, Game theory, Algorithm design, Fuzzy theory, Inverse optimization, Network interdiction problems
Publication in European Journal of Operational Research, Optimization, Discrete Applied Mathematics, Journal of Combinatorial Optimization, Mathematics, IEEE Access, Iranian Journal of Fuzzy Systems, AsiaPacific Journal of Operational Research, and many others.
Member of the Editorial Board of Bulletin of Transilvania University of Brasov Series III

