The Euler Medal was awarded to Hanfried Lenz in 1995 for his contributions to geometry and combinatorics. Born in Munich in 1916, Lenz navigated a long career as a mathematician and university teacher, shaping academic discourse through his research into the classification of projective planes and his work on affine spaces during the post-war era.
Early Education and Military Service
Lenz began his higher education at the University of Tübingen, studying mathematics and physics. His studies were interrupted between 1935 and 1937 for military service. He continued his academic training at the Technical University of Munich, Leipzig University, and the Freie Universität Berlin. Following the outbreak of World War II, he served as a soldier on the western front, completing his teacher certification exams during a period of leave.
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Following the war, Lenz worked as a teacher in Munich before becoming an assistant at the Technical University of Munich in 1949. He earned his PhD in 1951 and achieved his Habilitation in 1953. Serving as a lecturer and later an associate professor, he eventually secured a full professorship at the Freie Universität Berlin in 1969. He remained at the institution until his retirement in 1984.
Mathematical Contributions
Lenz is recognized for his research regarding the classification of projective planes. In 1954, he developed a method to introduce affine spaces axiomatically without relying on prior construction from vector or projective spaces, a result currently referenced as the theorem of Lenz. In his later career, he focused on combinatorics, co-authoring a book on design theory alongside Thomas Beth and Dieter Jungnickel.
Political Engagement
Lenz maintained an active political life throughout his career. In 1954, he joined the Social Democratic Party (SPD), driven by his opposition to the rearmament of the German army. By 1972, he shifted his political alignment and departed the SPD to join the Christian Democratic Union, influenced by the student movements of the 1960s.
Fast facts
- Born: 1916, Munich
- Died: 2013, Berlin
- Education: University of Tübingen, Technical University of Munich, Freie Universität Berlin, Leipzig University
- Career: Mathematician and university teacher
- Major Award: Euler Medal (1995)
- Political Affiliations: SPD (1954-1972), Christian Democratic Union (after 1972)
- Membership: Kyffhäuserbund
Questions readers ask
What is the theorem of Lenz?
It is a mathematical result from 1954 showing how to axiomatically introduce affine spaces without constructing them from vector or projective spaces.
Where did Hanfried Lenz teach?
He taught at the Technical University of Munich and the Freie Universität Berlin.
Achievements
- Euler Medal — 1995
- Held posts at Freie Universität Berlin and Technical University of Munich
