Peter Thullen

Peter Thullen (born 24 August 1907 in Trier, † 24 June 1996 Lonay, Switzerland ) was a German - Ecuadorian mathematician. He was known for his research in complex analysis known function theory ( " Münstersche school of complex analysis " ) and later as an actuary.

He studied mathematics at the Westfälische Wilhelms-Universität in Münster, where he in December 1930 with a thesis " The illustrations by analytic functions of several complex variables. The invariance of the center was awarded his doctorate from county bodies ". He was an assistant to Heinrich Behnke, with whom he published several articles and in 1934 the well-known result report on the theory of functions of several variables published, which was a standard work then. Thullen but had to leave Germany in 1933 because he was persecuted by the Nazis, and then worked in Rome. Thullen had been very active in the Catholic Youth Movement and National Socialism was hostile towards. From Rome, he emigrated in 1935 to Ecuador, where he became a professor at the Universidad Central del Ecuador in Quito. He was one of the leading figures in the establishment of non-university Escuela de Estudios Económico - Sociales in 1939, the School of Economics of the Faculty of Law and Social Sciences and 1950 to Faculty of Economics of Central University in 1942. Thullen was in Ecuador to the applied mathematician and took over the management of the Actuarial Department of the Instituto Nacional de Prevision, which organized the Social Security ( Instituto today Ecuatoriano de Seguridad Social). He also advised other Latin American countries in organizing their social security and worked for the state insurance Colombia and Panama.

In 1951 he moved to the International Labour Office in Geneva, where he was Chief Actuary in 1956 and 1965, took over the management of the Department of Social Security.

After his retirement in 1967, he advised, among others, the governments of Cyprus and Luxembourg in reforming their Sozialversichungen and was an advisor to the World Bank. As a professor of mathematics and insurance he lectured at the University of Zurich. From 1971 to 1977 he worked as a professor at the Mathematical Institute of the University of Fribourg.

Writings

• With Heinrich Behnke: theory of functions of several complex variables, Springer Verlag, results of mathematics and its applications, 1934, 2nd edition, composed by Reinhold Remmert 1970