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Math Sciences
George Anastassiou

George Anastassiou

Professor

901.678.3144Dunn Hall 200ganastss@memphis.edu

Research Interests

Computational analysis, approximation theory, probability, theory of moments.

Dr. George Anastassiou's CV: https://archive.org/details/anastassiou-cv-1-1-26

Editor in Chief

JAFA Journal of Applied Functional Analysis; JoCAA Journal of Computational Analysis and Applications; and JCAAM Journal of Concrete and Applicable Mathematics. Old websites at JAFA, JoCAA, and JCAAM.

Invited Lectures

2026

  • George Anastassiou, Professor Emeritus of Mathematics, served as a featured speaker at the RAAM2026 (Recent Advances in Applied Mathematics) virtual conference hosted in Hyderabad, India. He delivered a lecture titled, "Infinitely many specific multi-composite sigmoid Banach space valued neural network univariate approximations."
  • Professor Emeritus/Mathematics George Anastassiou, was an invited speaker in the Online Conference IOCMA 2026 (The 2nd International Online Conference on Mathematics and Applications), during June 10-12, 2026. Title of his lecture "Approximation by overactivated and spiked convolutions as Positive Linear Operators.
  • Professor Emeritus of Mathematics George A. Anastassiou, participated in the MDPI "The 1st International Online Conference in Fractal & Fractional", held online during 13-15 April of 2026. He was also a keynote speaker in Section 5: "Fractional Calculus in Machine Learning: Applications and Challenges", where he delivered the paper "Fractional case of Composition of Activation functions and the reduction to finite domain."
  • Dr. G. Anastassiou also was an one hour invited speaker in the international conference "Recent Advances in Mathematical Sciences and its Applications (RAMSA-2026)", held in "Jaypee Institute of Information Technology", Noida, India, 2-20-2026. Title of lecture: "GENERALIZED LOGISTIC NEURAL NETWORKS AS POSITIVE LINEAR OPERATORS".
  • Professor Emeritus George Anastassiou, Dept. of Mathematics/UM, was an one hour invited main speaker in an online webinar by MDPI publisher on 3-13-2026, celebrating the International Day of Mathematics

2024

  • Plenary speaker, ICAAMM (International Conference on Applied Analysis and Mathematical Modeling), Biruni University, Istanbul, Turkey, July 19-23, 2024. Title of lecture: "Parametrized Trigonometric derived Lp degree of approximation by various smooth singular integral operators." Lecture delivered on: 7/19/24.

2023

  1. Main speaker, MDPI webinar May 12, 2023, Zurich, Switzerland.
  2. Joint Invited speaker, 1st International Statistics Conference, May 25-28, 2023, Athens, Greece.
  3. Main speaker, ICOMSS23, Selcuk, Turkey, June, 5-7, 2023.
  4. Invited speaker, ICNSC 2023, Istanbul, Turkey, July 10-15, 2023.
  5. Invited speaker and Honorary Chair, ICMMAAC-23, Jaipur, India, August 3-5, 2023.

Recent Books

View images of books published in 2015 by George Anastassiou.

  1. G. Anastassiou: first monograph 1993 digitized: https://archive.org/details/moments-probab-approx-th-g-anastassiou-pp-1-411-entire-monograph-1993-compressed
  2. G. Anastassiou: Monografii matematice: https://archive.org/details/monografii-matematice-g-anastassiou-s-t-rachev-1998-w-timisoara-romania-79-pages
  3. G. Anastassiou and R. Mezei (former Ph. D student of Anastassiou): Numerical Analysis Using Sage, Springer, NY, 2015 (textbook, 314 pages).
  4. G. Anastassiou: Frontiers in Approximation Theory, World Scientific Publishing Corporation, Singapore, NJ, 2015 (228 pages).
  5. G. Anastassiou: Frontiers in Time Scales and Inequalities, World Scientific Publishing Corporation, Singapore, NJ, 2016 (just published, 278 pages).
  6. G. Anastassiou: Intelligent Comparisons: Analytic Inequalities, Springer, Heidelberg, NY, 2016 (662 pages).
  7. G. Anastassiou: Intelligent Systems II: Complete Approximation by Neural Network Operators, Springer, Heidelberg, NY, 2016 (714 pages).
  8. G. Anastassiou: Constructive Fractional Analysis with Applications, Studies in Systems, Decision and Control,Springer, Heidelberg, NY, 2021 (522 pages).
  9. G. Anastassiou: Unification of Fractional Calculi with Applications, Studies in Systems, Decision and Control, Springer International Publishing, NY, 2022.
  10. G. Anastassiou: Parametrized, Deformed and General Neural Networks. Vol. 1116. Springer Nature, 2023.
  11. G. Anastassiou: AI MATHEMATICS: ADVANCED NEURAL NETWORK APPROXIMATION, Springer, Heidelberg, NY, 2026 (828 pages). https://link.springer.com/book/10.1007/978-3-032-15046-2

Other Major Events

  • July 23–31, 2026:Professor Emeritus of Mathematics George Anastassiou participated in person at the "International Congress of Mathematicians 2026" in Philadelphia, PA, presenting his paper, "Composition of Activation Functions and the Reduction to Finite Domain.
  • April 10, 2026: Professor Emeritus George Anastassiou, Dept. of Mathematics/UM, served as the Organizer, Editor, and Keynote Speaker for the MDPI webinar titled "AI mathematics: advanced neural networks approximation." He delivered the keynote lecture: "Composition of Activation functions and the Reduction to finite domain." is available at sciforum.net/event/Mathematics-22#recording.

  • January 3–7, 2026: Attended the Annual Meeting of the American Mathematical Society in Washington, D.C., delivering a one-hour invited lecture titled "Neural Networks as Positive Linear Operators."

  • August 1–3, 2025: Served as Honorary Chair and Keynote Speaker at the 8th International Conference on Mathematical Modelling, Applied Analysis and Computation (ICMMAAC-25, Hybrid Mode) at JECRC University, Jaipur, India. Presented the lecture "Neural Networks as Positive Linear Operators."

  • April 18–20, 2024: Plenary Speaker at the 7th International Conference on Mathematical Modelling, Applied Analysis and Computation (ICMMAAC-24) at Lebanese American University, Beirut, Lebanon. The event also honored Dr. Anastassiou’s 70th birthday.

  • January 3–6, 2024: Participated in the Annual Meeting of the American Mathematical Society in San Francisco, CA, where he presented a research paper.

  • April 7, 2023: Delivered invited lectures in Boston, MA, including "Multivariate Gudermannian function activated neural network approximations."

  • August 4–6, 2022: Keynote Speaker at the 5th International Conference on Mathematical Modelling, Applied Analysis and Computation (ICMMAAC-22), JECRC University, Jaipur, India. Lecture title: "Approximation by Neural Networks."

  • July 5–8, 2022: Participant in the 2nd World Congress of Greek Mathematicians, National Technical University of Athens, Greece.

  • July 1–3, 2022: Keynote Speaker at the Online International Conference on Applied Analysis and Mathematical Modeling (ICAAMM 2022), Biruni University, Istanbul, Turkey. Lecture title: "Ordinary and Fractional Approximation by Neural Network Operators Revisited."

  • February 28, 2022: Delivered a lecture titled "Approximation by Algebraic Neural Networks" at the Isaac Newton Institute, University of Cambridge, UK.

  • Spring 2022: Invited participant and lecturer for the "Fractional Differential Equations II" seminar at the Isaac Newton Institute, University of Cambridge, UK.

  • January 21–23, 2022: Keynote Speaker at the International Symposium on Applied Mathematics and Engineering, Biruni University, Istanbul, Turkey. Presented "Abstract Bivariate Left Fractional Pseudo-Polynomial Monotone Constrained Approximation with applications"; the conference also honored his 70th birthday.

  • August 5–7, 2021: Awarded "THE LIFETIME ACHIEVEMENT AWARD" by JECRC University and Jaipur Mathematical Society, India. Served as a one-hour Keynote Speaker at ICMMAAC-21, which honored his 69th birthday.

  • June 11–13, 2021: Keynote Speaker at the Online International Conference on Applied Analysis and Mathematical Modelling (ICAAMM 2021), Biruni University, Istanbul, Turkey. Lecture title: "Iyengar-Hilfer Fractional Inequalities."

  • December 4–6, 2020: Main Keynote Speaker at the First Online International Conference on Fractional Calculus (Istanbul, Turkey) and recipient of the "Riesz" Award.

  • 2015: Organizer of the International Conference on Applied Mathematics and Approximation Theory (AMAT 2015) in Ankara, Turkey.