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・ Stefan Quandt
・ Stefan R. Bornstein
・ Stefan R. Underhill
・ Stefan Raab
・ Stefan Marković (footballer)
・ Stefan Marsh
・ Stefan Martin
・ Stefan Masztak
・ Stefan Matschiner
・ Stefan Matteau
・ Stefan Matz
・ Stefan Mauk
・ Stefan Maurer
・ Stefan Mayer
・ Stefan Mazrocis
Stefan Mazurkiewicz
・ Stefan McCluskey
・ Stefan Medina
・ Stefan Meier
・ Stefan Meissner
・ Stefan Meister
・ Stefan Meller
・ Stefan Merrill Block
・ Stefan Merriman
・ Stefan Metz
・ Stefan Meyer
・ Stefan Meyer (ice hockey)
・ Stefan Meyer (physicist)
・ Stefan Meyer-Kahlen
・ Stefan Michnik


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Stefan Mazurkiewicz : ウィキペディア英語版
Stefan Mazurkiewicz
Stefan Mazurkiewicz (25 September 1888 in Warsaw, then Russian Empire – 19 June 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. For a time Mazurkiewicz was a professor at the University of Paris; however, he spent most of his career as a professor at the University of Warsaw.
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 most common 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.
==See also==

* Biuro Szyfrów

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