Maximilian Sebastian Janisch defended his doctoral dissertation in mathematics at the University of Zurich in June 2025 at the age of 21. Born in 2003 in Meierskappel, he holds citizenship in both Switzerland and Germany. His academic trajectory began with early recognition for his mathematical aptitude, leading to a series of institutional milestones achieved during his childhood and adolescence.
Early Academic Advancement
Janisch gained notice for his accelerated educational path, which included skipping three years of elementary school following a WISC test score of 149+. At age eight, he entered Gymnasium Immensee. By age nine, he successfully passed the Matura in mathematics with top marks. Although he sought to enroll in courses at ETH Zürich after this achievement, the institution denied his request, resulting in significant press coverage within Switzerland.
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In September 2015, Janisch enrolled at the French University of Perpignan, entering as a second-year student. This placement distinguished him as the youngest university student in France at that time. He subsequently completed the full Swiss Matura in August 2018. Following this, he enrolled as a mathematics student at the University of Zurich to pursue his higher education.
Doctoral Research
Beginning in December 2021, Janisch served as a doctoral student at the University of Zurich. His research was conducted under the supervision of advisor Ashkan Nikeghbali. Throughout his tenure as a doctoral candidate, his activities and lifestyle received media attention, including reports in 2025 referring to his status as a highly-gifted mathematician. He successfully defended his dissertation in June 2025.
Media and Documentation
The public profile of Janisch has been documented through various outlets, including cinema productions. Notably, the documentary film titled Maximilian, directed by Nicolas Greinacher, received a Grand Prix at the Rhode Island International Film Festival in 2018. He maintains an official website and contributes research material to the arXiv repository.
Fast facts
- Born: 2003, Meierskappel
- Citizenship: Switzerland; Germany
- Doctoral Advisor: Ashkan Nikeghbali
- PhD Defense: June 2025
- Alma Mater: University of Zurich
- Languages: French, German, English
Questions readers ask
What subjects does Maximilian Janisch study?
He specializes in the field of mathematics, with a focus on applied mathematics.
At what age did Janisch become a university student?
He became the youngest university student in France at age 12 when he entered the University of Perpignan.

