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Mathematisch Instituut


The research of the Mathematical Institute is driven by the curiosity of its members and has many internal and external connections. It can be characterised as fundamental but with an open attitude towards applications.

Quality is the overriding criterion for research. In national evaluations the MI researchers consistently receive the highest possible evaluations on all criteria (quality, relevance and viability; see for last two: 2003-2008, 2009-2014).

The research can currently be clustered in four themes:

More information on this division can be found on the group web pages.

The research program is part of the profile area 'Fundamentals of Science' of Leiden University.

Kloosterman chair

Every year a distinguished mathematician is appointed as a visiting professor  at the Mathematical Institute, usually for two months. This chair is named after Hendrik Douwe Kloosterman, who was born on April 9, 1900, and after studying in Leiden, Copenhagen, Oxford, Göttingen and Hamburg, was appointed "lector" in Leiden in 1930 and full professor in 1947. He died on May 6, 1968. He is mostly known for his work in analytic number theory on what we now call "Kloosterman sums".


Researchers of the institute participate in:


Publications and preprints

See pages of individual researchers, group pages, arXiv, or