Magdalena Sekuła kl.3b

MATHEMATICIANSPOLISH

Stefan Banach

(1892-1945)

Stefan Banach was a Polish mathematician who is generally considered one of the world's most important and influential 20th-century mathematicians.  He was one of the founders of modern functional analysis, and an original member of the Lwów School of Mathematics. His major work was the 1932 book, Théorie des opérations linéaires (Theory of Linear Operations), the first monograph on the general theory of functional analysis.

Zygmunt Janiszewski (1888-1920) 

Zygmunt Janiszewski was a Polish mathematician. While Janiszewski best remembered for his many contributions to topological mathematics in the early 20th century, for the founding of Fundamenta Mathematicae, and for his enthusiasm for teaching young minds, his loyalty to his homeland during World War I perhaps gives the greatest insight into his psyche. The orphans' shelter that he set up during the war doubtlessly saved many lives, and is perhaps his greatest contribution to the world.

Kazimierz Kuratowski(1896-1980)

Kazimierz Kuratowski was a Polish mathematician and logician. Among over 170 published works are valuable monographs and books including Topologie and Introduction to Set Theory and Topology. He authored „Half Century of Polish Mathematics 1920-1970: Remembrances and Reflections” and "Notes to his autobiography”. The latter was published posthumously thanks to Kuratowski's daughter Zofia Kuratowska, who prepared his notes for printing. Kazimierz Kuratowski represented Polish mathematics in the International Mathematics Union where he was vice president from 1963 to 1966. What is more, he participated in numerous international congresses and lectured at dozens of universities around the world. He received the highest national awards, as well as a gold medal of the Czechoslovak Academy of Sciences, and the Polish Academy of Sciences.

Karol Borsuk 

(1905-1982)

Karol Borsuk was a  Polish  mathematician. His main interest was topology. Borsuk introduced the theory of absolute retracts (ARs) and absolute neighborhood retracts (ANRs), and the cohomotopy groups, later called Borsuk-Spanier cohomotopy groups. He also founded Shape theory. He has constructed various beautiful examples of topological spaces, e.g. an acyclic, 3-dimensional continuum which admits a fixed point free homeomorphism onto itself; also 2-dimensional, contractible polyhedra which have no free edge. His topological and geometric conjectures and themes stimulated research for more than half a century.

Stanisław Mazur

(1905-1981)

Stanisław Mazur was a  Polish mathematician  and a member of the  Polish Academy of Sciences. Mazur made important contributions to geometrical methods in linear and nonlinear functional analysis and to the study of Banach algebras. He was also interested in summability theory, infinite games and computable functions. Mazur was a close collaborator with Banach at Lwów and was a member of the Lwów School of Mathematics, where he participated in the mathematical activities at the Scottish Café.

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Magdalena Sekuła