Claus Michael Ringel

Claus Michael Ringel (born 10 February 1945 in Zwickau) is a German mathematician, specializing in algebra.

He received in 1969 from the Goethe University Frankfurt his doctorate under the supervision of Friedrich-Wilhelm Bauer with thesis Diagonalisierungspaare in der Homologischen Algebra (Diagonalization Pairs in Homological Algebra).

Since 2000 he has occasionally been a visiting professor at the University of Science and Technology of China in Hefei, and since 2011 he has occasionally taught as an adjunct professor at King Abdulaziz University in Jeddah.

[2] He has published over 140 papers (2005) and was ranked Highly Cited Researcher at the ISI in 2004.

He was an Invited Speaker at the International Congress of Mathematicians in 1983 in Warsaw with talk Indecomposable representations of finite-dimensional algebras.