Stefan Banach was a Polish mathematician who is often regarded as one of the most prominent and influential mathematicians of the twentieth century. He founded contemporary functional analysis and was a founding member of the Lwów School of Mathematics.
Stefan Banach children: Stefan Banach Jr.
In 1920, his father was appointed as an assistant professor at the Lwów Polytechnic, and in 1924, he was elected to the Polish Academy of Learning. Banach was also a co-founder of the Lwów School of Mathematics, a school of thought that included some of Poland’s most famous mathematicians during the interwar era (1918-1939).
Banach spaces, Banach algebras, Banach measures, the Banach-Tarski paradox, the Hahn-Banach theorem, the Banach-Steinhaus theorem, the Banach-Mazur game, the Banach-Alaoglu theorem, and the Banach fixed-point theorem are among the important mathematical notions that carry his name.
