Dimitrios Betsakos

Dimitrios Betsakos is a Professor at the Department of Mathematics, Aristotle University of Thessaloniki, Greece. His academic journey began with a degree in Mathematics (1990) from Aristotle University, followed by a PhD in Mathematics (1996) from Washington University in St. Louis. He has held various academic positions, including Postdoctoral Fellow at the University of Helsinki (1998-1999), Visiting Assistant Professor roles at Aristotle University and the University of Crete (1999-2002), and progressively advanced to Assistant, Associate, and Full Professor at Aristotle University (2002-).

His research focuses on Complex Analysis, Dynamic Theory, and Geometric Function Theory, exploring topics like harmonic measure, symmetrization, and hyperbolic geometry. His work connects analysis with probability, particularly through Brownian motion and Markov processes.

The 15 most recent publications (2004-2021) span geometric versions of Schwarz’s lemma, harmonic measure, hyperbolic metrics, and condenser capacity. These studies often involve collaborations and address extremal problems, inequalities, and applications of complex analysis to differential equations.

He has supervised numerous doctoral and postgraduate students, including Kelgiannis Georgios, Tsantaris Athanasios, and Sachpazis Stylianos, guiding research on topics like holomorphic functions, geometric transformations, and hyperbolic metrics. His teaching includes courses on Real Analysis and Complex Analysis.

Current research projects include geometric versions of Schwarz’s lemma under hyperbolic metrics and capacity estimation problems, reflecting his long-term engagement with conformal invariants and analytic number theory.