Stefan Banach

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Banach, Stefan


Born Mar. 30, 1892, in Kraków; died Aug. 31, 1945, in L’vov. Polish mathematician. Professor at the University of L’vov (1924). Dean of the physics and mathematics department of that university (1939).

Banach was one of the founders of contemporary functional analysis. Linear spaces in which linear functionals and operators are most fruitfully studied are named for him. His main work is Theory of Linear Operations, published in Polish (1931), French (1933), and Ukrainian (1948). During the German fascist occupation, Banach was the victim of cruel torment by the fascists. After the liberation of L’vov, he again headed the physics and mathematics department of the University of L’vov.


“Stefan Banakh.” Uspekhi matematicheskikh nauk: Novaia seriia, 1946, vol. 1, issues 3–4. (Contains a bibliography of Banach’s works.)
References in periodicals archive ?
Far more mind-blowing is a mathematical result known as the Banach-Tarski paradox after two Polish mathematicians, Stefan Banach and Alfred Tarski.
El famoso teorema sobre de extension de funcionales que hoy llamamos de Hahn-Banach, pieza fundamental de analisis funcional, se debe independientemente al matematico austriaco Hans Hahn (1927) y al polones Stefan Banach (1929), quienes aparentemente generalizaron ideas del tambien austriaco Edward Helly (1912).
In the previous year, Tarski and Stefan Banach had proved a remarkable analog of the same conjecture in three dimensions, showing paradoxically that a sphere could be cut up and rearranged not only into a cube of the same volume but also into a cube of twice the volume.