Ib Madsen, Date of Birth, Place of Birth

Ib Madsen

Danish mathematician

Date of Birth: 12-Apr-1942

Place of Birth: Copenhagen, Capital Region of Denmark, Denmark

Profession: mathematician, university teacher

Nationality: Denmark

Zodiac Sign: Aries

Ib Henning Madsen (born April 12, 1942 in Copenhagen) is a Danish mathematician, a professor of mathematics at the University of Copenhagen.
He is known for (with Michael Weiss) proving the Mumford conjecture on the cohomology of the stable mapping class group, and for developing topological cyclic homology theory.