On May 18, 2026, Mr. Francisco Araújo successfully passed his PhD defense at the University of Paderborn in the Department of Mathematics.
The dissertation, titled “Erdös Sieves and Dynamics,” was supervised by Prof. Dr. Jürgen Klüners.
Our sincere thanks go to Prof. Dr. Joanna Kułaga-Przymus (Nicolaus Copernicus University in Toruń, Poland) for her work as the second examiner.
The department warmly congratulates Francisco Araújo on passing his PhD defense and wishes him all the best in his future personal and professional life.
