Czesław Ryll-Nardzewski, Date of Birth, Place of Birth, Date of Death

Czesław Ryll-Nardzewski

Polish mathematician

Date of Birth: 07-Oct-1926

Place of Birth: Vilnius, Vilnius County, Lithuania

Date of Death: 18-Sep-2015

Profession: mathematician, university teacher

Nationality: Poland

Zodiac Sign: Libra

Czeslaw Ryll-Nardzewski (Polish: ['t???swav 'r?l nar'd?z?fsk?i]; 7 October 1926 – 18 September 2015) was a Polish mathematician. Born in Wilno, Second Polish Republic (now Vilnius, Lithuania), he was a student of Hugo Steinhaus.
At the age of 26 he became professor at the Warsaw University.
In 1959, he became a professor at the Wroclaw University of Technology.
The advisor of many PhD.
His main research areas are measure theory, functional analysis, foundations of mathematics and probability theory.
Several theorems bear his name: the Ryll-Nardzewski fixed point theorem, the Ryll-Nardzewski theorem in model theory, and the Kuratowski and Ryll-Nardzewski measurable selection theorem. He became a member of the Polish Academy of Sciences in 1967.
He died in 2015 at the age of 88 and he is buried in the Wroclaw, cm.
Grabiszynski .