Stefan Mazurkiewicz

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Stefan Mazurkiewicz
Stefan Mazurkiewicz

Stefan Mazurkiewicz (born September 25, 1888 in Warsaw, then Russian Empire – died June 19, 1945, Grodzisk Mazowiecki, Poland) was a Polish mathematician who worked in mathematical analysis, topology, and probability. He was a student of Wacław Sierpiński and a member of the Polish Academy of Learning (PAU). His students included Karol Borsuk, Bronisław Knaster, Kazimierz Kuratowski, Stanisław Saks, and Antoni Zygmund.

Biuro Szyfrów
Cipher Bureau edit
Cryptologic methods and technology:
Enigma "doubles" • Grill • Clock • Cyclometer • Card catalog • Cryptologic bomb • Zygalski sheets • Lacida
Location:
Saxon Palace • Kabaty Woods
• PC Bruno • Cadix
Personnel:
Maksymilian Ciężki • Jan Graliński • Jan Kowalewski • Gwido Langer • Stanisław Leśniewski • Stefan Mazurkiewicz • Wiktor Michałowski • Antoni Palluth • Franciszek Pokorny • Marian Rejewski • Jerzy Różycki • Wacław Sierpiński • Piotr Smoleński • Henryk Zygalski

The Hahn-Mazurkiewicz theorem, a basic result on curves prompted by the phenomenon of space-filling curves, is named for Mazurkiewicz and Hans Hahn. His 1935 paper Sur l'existence des continus indécomposables is generally considered the most elegant piece of work in point-set topology.

During the Polish-Soviet War (1919-1921), Mazurkiewicz as early as 1919 broke the commonest Russian cipher for the Polish General Staff's cryptological agency. Thanks to this, orders issued by Soviet commander Mikhail Tukhachevsky's staff were known to Polish Army leaders. This contributed substantially, perhaps decisively, to Polish victory at the critical Battle of Warsaw and possibly to Poland's survival as an independent country.

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Retrieved from "http://en.wikipedia.org/wiki/Stefan_Mazurkiewicz"
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