Themistocles M. Rassias


Themistocles M. Rassias is a Greek mathematician, and a Professor at the National Technical University of Athens, Greece. He has published more than 300 papers, 10 research books and 45 edited volumes in research Mathematics as well as 4 textbooks in Mathematics for university students. His research work has received more than 15,000 citations according to Google Scholar and more than 5,000 citations according to MathSciNet. His h-index is 45. He serves as a member of the
Editorial Board of several international mathematical journals.

Education

He received his Ph.D. in Mathematics from the University of California at Berkeley in June 1976. Professor Stephen Smale and Professor Shiing-Shen Chern have been his thesis and academic advisors, respectively.

Research

His work extends over several fields of Mathematical Analysis. It includes Nonlinear Functional Analysis, Functional Equations, Approximation Theory, Analysis on Manifolds, Calculus of Variations, Inequalities, Metric Geometry and their Applications.
He has contributed a number of results in the stability of minimal submanifolds, in the solution of Ulam's Problem for approximate homomorphisms in Banach spaces, in the theory of isometric mappings in metric spaces and in Complex analysis.

Terminology

Hyers–Ulam–Rassias stability of functional equations.
The Aleksandrov–Rassias problem for isometric mappings.

Awards and honors

He has received a number of honors and awards including: