Stanisław Łojasiewicz

Stanisław Łojasiewicz (born October 9, 1926 in Warsaw , † November 14, 2002 ) was a Polish mathematician .

Life

Stanisław Łojasiewicz studied mathematics from 1945 to 1947 at the Jagellonen University in Kraków and received his doctorate in 1950 from Tadeusz Ważewski with the dissertation Sur l'allure asymptotique des intègrales du système d'équations differentielles au voisinage de point singulier . He first dealt with ordinary differential equations , then with distribution theory and partial differential equations . His work on semi-analytical geometry had implications in approximation theory , control theory and model theory .

After his first stay abroad in Paris in 1957, he worked from 1958 to 1960 at the universities of Kingston (Ontario) , Chicago , Berkeley (California) and the Institute for Advanced Studies in Princeton . In 1962 he became a professor at the Jagiellonian University and then accepted invitations to Pisa and Buenos Aires . After his research stay at the Institut des Hautes Études Scientifiques 1964–1965, he presented a systematic elaboration of semi-analytical geometry and a monograph on this topic. He was invited to the international mathematicians' congress in Nice in 1970 to present his results (lecture: Sur les ensembles semi-analytiques ).

In 1971 Łojasiewicz was elected as a corresponding member of the Polish Academy of Sciences , he received full membership in 1980. Since 1983 he was a member of the Pontifical Academy of Sciences . In 1992 he was awarded the Stefan Banach Medal . In 1970 he was invited speaker at the International Congress of Mathematicians in Nice ( Sur les ensembles semi-analytiques ) and in 1962 he gave a lecture at the ICM in Stockholm ( Triangulation of real analytic sets ).