- Stefan Mazurkiewicz
Stefan Mazurkiewicz (born
September 25 1888 inWarsaw , thenRussian Empire – diedJune 19 1945 ,Grodzisk Mazowiecki ,Poland ) was a Polishmathematician who worked inmathematical analysis ,topology , andprobability . He was a student ofWacław Sierpiński and a member of thePolish Academy of Learning ("PAU"). His students includedKarol Borsuk ,Bronisław Knaster ,Kazimierz Kuratowski ,Stanisław Saks , andAntoni Zygmund .The Hahn-Mazurkiewicz theorem, a basic result on
curve s prompted by the phenomenon ofspace-filling curve s, is named for Mazurkiewicz andHans Hahn . His 1935 paper "Sur l'existence des continus indécomposables" is generally considered the most elegant piece of work inpoint-set topology .During the
Polish-Soviet War (1919-1921), Mazurkiewicz as early as 1919 broke the commonestRussia ncipher for the PolishGeneral Staff 's cryptological agency. Thanks to this, orders issued by Soviet commanderMikhail 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.ee also
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