## Betsakos Dimitrios

Professor

Office: Glass Building of Faculty of Sciences, East Wing, 3rd Floor, Room 3.8

Phone Number: +302310997935

Email: betsakos@math.auth.gr Website: Personal Website

### Studies

- Undergraduate studies: Department of Mathematics, Aristotle University of Thessaloniki, B. Sc. 1990
- Graduate studies: Department of Mathematics, Washington University Saint Louis, PhD 1996
- Doctoral thesis subject:
*Complex Analysis, Potential Theory* - Doctoral thesis title:
*Harmonic measure, domains of fixed inradius and polarization* - Supervisor:
*Prof. Albert Baernstein*

- Doctoral thesis subject:

### Professional Experience

- 1998-1999: Postdoctoral Fellow, Department of Mathematics, University of Helsinki.
- 1999-2000: Visiting assistant professor, School of Engineering, Aristotle University of Thessaloniki.
- 2000-2002: Visiting assistant professor, Department of Applied Mathematics, University of Crete.
- 2002-2008: Assistant professor, Department Mathematics, Aristotle University of Thessaloniki.
- 2008-2014: Associate professor, Department Mathematics, Aristotle University of Thessaloniki.
- 2014- : Professor, Department Mathematics, Aristotle University of Thessaloniki.

### Research Interests

- Complex Analysis
- Potential Theory

### Selected Publications

- Symmetrization, symmetric stable processes, and Riesz capacities.
*Trans. Amer. Math. Soc.*356 (2004), 735-755. - Polarization, continuous Markov processes and second order elliptic equations.
*Indiana Univ. Math. J.*53 (2004), 331-346. - On the eigenvalues of the infinitesimal generator of a semigroup of composition operators.
*J. Funct. Anal.*273 (2017), 2249-2274. - On the existence of strips inside domains convex in one direction.
*Journal d’Analyse Mathematique*134 (2018), 107-126. - (with S.Pouliasis) Isometries for the modulus metric are quasiconformal mappings.
*Trans. Amer. Math. Soc.*372 (2019), no. 4, 2735–2752.