(March 30, 1892, Kraków – August 31, 1945, Lviv)

One of the greatest mathematicians of the 20th century.
Studied at Lviv Polytechnic, received a doctorate and habilitation degree at Lviv University. Professor of the University and Polytechnic, head of a department, and dean of the faculty at Lviv University.
His doctoral dissertation in 1920 laid the foundations for modern functional analysis, and his pivotal monograph "Theory of Linear Operators" determined the development of functional analysis for many years. The Polish (1931) and French (1932) editions were followed by their Ukrainian translation by Professor Myron Zarytskyi, entitled "Course of Functional Analysis" (1948). Many notable mathematical concepts and theorems bear the name of Stefan Banach, the most famous and important being Banach space.
Stefan Banach and Hugo Steinhaus were the leaders of the world-famous Lwów School of Mathematics and founders of the influential mathematical journal "Studia Mathematica". In 1935, Banach initiated the legendary "Scottish Book" (1935–1941), a collection of open mathematical problems.
Scientific interests: functional analysis, real analysis, measure theory, orthogonal series, set theory, and topology.

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Burial place: Lviv, Lychakiv Cemetery field 1a