Current Address
Edificio Rolando Chuaqui
Campus San Joaquín
Avenida Vicuña Mackenna 4860, Macul
Santiago, Chile

E-mail: ias.efraimidis@gmail.com  
(iason.efraimidis@mat.uc.cl will expire soon)  

Teaching 
2014/15: Mathematics for freshmen, Department of Chemistry, UAM (problem solving seminar) (information)
2015/16: Differential Equations for sophomores, Department of Mathematics, UAM (problem solving seminar(information)
2016/17: Differential Equations for sophomores, Department of Mathematics, UAM (problem solving seminar) (information)
2018, 1st semester: Complex Variables, Masters program, Faculty of Mathematics, PUC (problem solving seminar) (information)
2018, 2nd semester: Problem solving seminar, Ph.D. program, preparation for the qualification exam, Faculty of Mathematics, PUC (information)
2019, 1st semester: Precalculus for freshmenCollege, PUC
                                Calculus I for freshmen, Faculty of Economics and ManagementPUC
  
Education
B. Sc. in Mathematics, Department of Mathematics, Aristotle University of Thessaloniki, Greece, 2004-2009.
M. Sc. in Mathematics, Department of Mathematics, Aristotle University of Thessaloniki, Greece, 2009-2011 (advisor: Prof. Dimitrios Betsakos).
Ph.D. in Mathematics, Department of MathematicsUniversidad Autónoma de Madrid, Spain, 2012-2017 (advisor: Prof. Dragan Vukotić).

Research
I'm interested in Complex Analysis and Geometric Function Theory: extremal problems for holomorphic or harmonic mappings, variational 
methods for univalent functions, the Schwarzian derivative, several complex variables and, also, in some spaces of holomorphic functions.
I belong to the research project "Inequalities and operators in real and complex analysis"(site of the project)

Publications
A generalization of Livingston’s coefficient inequalities for functions with positive real part, J. Math. Anal. Appl. 435 (2016), 369-379 (arXiv:1506.07111)
(with J. Gaona, R. Hernández and O. Venegas) On harmonic Bloch-type mappings, Complex Var. Elliptic Equ. 62 (2017), no. 8, 1081-1092 (arXiv:1607.04626)
(with D.Vukotic) Applications of Livingston-type inequalities to the generalized Zalcman functional, Math. Nachr. 291 (2018), no.10, 1502-1513 (arXiv:1611.00682)
On the failure of Bombieri's conjecture for univalent functions, Comput. Methods Funct. Theory 18 (2018), no. 3, 427-438 (arXiv: 1612.07242)
(with C. Pastor) Some more counterexamples for Bombieri's conjecture on univalent functions, J. Korean Math. Soc. 55 (2018), no. 6, pp. 1485-1498 (arXiv:1710.10462)
(with M. Chuaqui) A class of Weierstrass-Enneper lifts of harmonic mappings, Comput. Methods Funct. Theory 19 (2019), no. 2, 237-251 (arXiv:1804.07413)

Talks
Variations of Schwarz lemma, Workshop on Complex Analysis and Applications, Belgrade, Serbia, February 27-28, 2012 
Variational methods for coefficient problems, Analysis Seminar, Aristotle University of Thessaloniki, Greece, March 26, 2013 
Variational methods for coefficient problems, Analysis Seminar, Turku University, Finland, August 28, 2013 
Zalcman's conjecture for univalent functions, Workshop of Young Researchers in Mathematics, Complutense University of Madrid, Spain, September 22-24, 2014 
A coefficient inequality for functions with positive real part, Mathematics Research SeminarUniversity of Eastern Finland, Joensuu, November 7, 2014 
Livingston’s inequalities for functions with positive real part, generalizations and applications, Analysis Summer Meeting, Aristotle University of Thessaloniki, Greece, June 25-26, 2015 
On Livingston's coefficient inequalities for functions with positive real partComplex Analysis Seminar, Universidad Autónoma de Madrid, Spain, July 17, 2015 
Coefficient inequalities in the Carathéodory class of functions, Workshop on Complex Analysis and Operator Theory, Málaga, Spain, June 19-24, 2016 
Sobre las funciones armónicas de tipo Bloch, Complex Analysis SeminarUniversidad Autónoma de Madrid, Spain, October 27, 2016 
On Bombieri's conjecture for univalent functions, Complex Analysis SeminarUniversidad Autónoma de Madrid, Spain, December 21, 2016 
On Bombieri's conjecture for univalent functions, Mini Workshop, Pontificia Universidad Católica de Chile, Santiago, January 19, 2017 
Two conjectures on the coefficients of univalent functions, Complex Analysis SeminarUniversidad Autónoma de Madrid, Spain, May 31, 2017 
Coefficient problems in geometric function theory, thesis defense, Universidad Autónoma de Madrid, Spain, June 16, 2017 
On Bombieri's conjecture for univalent functions, CMFT International Conference, Lublin, Poland, July 13, 2017 
La desigualdad isoperimétrica, Club de MatemáticaPontificia Universidad Católica de Chile, Santiago, April 6, 2018 
A class of Weierstrass-Enneper lifts of harmonic mappings, XXXI Jornada de Matemática de la Zona SurValdivia, Chile, April 26, 2018 
The harmonic inner radius, Seminario de Análisis Complejo, Pontificia Universidad Católica de Chile, Santiago, December 12, 2018 
The Schwarzian derivative and the harmonic inner radius, Analysis Winter MeetingAristotle University of Thessaloniki, Greece, December 21, 2018 
Schwarzian derivatives in several complex variables, Analysis Seminar, Aristotle University of Thessaloniki, Greece, February 7, 2019
Criteria for univalence and quasiconformal extension for harmonic mappings, Complex Analysis Seminar, Universidad Autónoma de Madrid, Spain, February 22, 2019
On shears of univalent harmonic mappings, Seminario de Análisis Complejo, Pontificia Universidad Católica de Chile, Santiago, March 27, 2019
Criteria for univalence and quasiconformal extension for harmonic mappings, Summer Meeting of Young Researchers in MathematicsUniversity of Athens, Greece, July 17, 2019

Other service
Organizer for the Junior Seminar (UAM-ICMAT) for the doctoral students of Universidad Autónoma de Madrid, 2016-17.

Organizer for the conference "New Developments in Complex Analysis and Function Theory", July 2-6, 2018, Department of Mathematics and Applied Mathematics, University of Crete, Heraklion, Greece.

Reviewer for Mathematical Reviews (MathSciNet).

Referee for the following journals:
- Analysis and Mathematical Physics
- Canadian Mathematical Bulletin
- Journal of Mathematical Analysis
- Journal of Pure and Applied Mathematics: Advances and Applications
- Matematički Vesnik
- Mathematische Nachrichten
- Results in Mathematics

Doctoral Thesis
Coefficient Problems in Geometric Function Theory

Master Thesis
The hyperbolic metric and an application to growth estimates for holomorphic functions 

Links