George A. Gravvanis

Dr. George A. Gravvanis is a Professor of Applied Mathematics and Numerical Computations at the Department of Physics and Applied Mathematics, Democritus University of Thrace. He also serves as Coordinator and SEP Member for Thematic Units at the Hellenic Open University.

• B.Sc. (1982) in Science (Joint Honours), University of Salford
• B.A. (1986), Mathematics, National and Kapodistrian University of Athens
• M.Sc. (1984), Numerical Analysis, Brunel University
• PhD (1992), Computer Science, Athens University of Economics and Business

His research focuses on computational and numerical methods, including Mathematical Modeling, Parallel Algorithmic Design, Numerical Algorithms, Sparse Matrix Techniques, and PDE Solvers. He integrates these into Mathematical Software and Computer Science Mathematics.

Recent article trends highlight his work in Sparse Regression for data imputation, Hybrid Multi-Projection Methods for distributed systems, and Unified Transform Techniques for PDEs. Subfields span High-dimensional Data, GPU Clusters, and Self-Organizing Clouds.

He has taught undergraduate courses in Mathematical Software, Applied Numerical Analysis, and Scientific Calculations. He has coordinated research projects such as the CloudLightning initiative under Horizon 2020. His editorial contributions include roles on international journal boards and special edition editing.

Dr. Gravvanis has reviewed for major academic organizations and journals, including ACM Computing Reviews and Mathematical Reviews (AMS). His career spans academic roles and technical positions in national and EU social security informatics.