Aleksander Rajchman

Aleksander Rajchman
Born	(1890-11-13)13 November 1890 Warsaw, Congress Poland, Russian Empire
Died	July or August 1940 Sachsenhausen concentration camp, Oranienburg, Germany
Nationality	Polish
Alma mater	John Casimir University of Lwów
Known for	Rajchman global uniqueness theorem Rajchman measure Rajchman collection Rajchman algebra Rajchman lemma Rajchman sharpened law of large numbers Rajchman theory of formal multiplication of trigonometric series Rajchman inequality Rajchman-Zygmund inequality
Scientific career
Fields	Mathematics real analysis probability mathematical statistics Fourier analysis trigonometric series
Institutions	University of Warsaw Collège de France
Thesis	On uniqueness of representation of a function by a trigonometric series  (1921)
Doctoral advisor	Hugo Steinhaus
Doctoral students	Antoni Zygmund Zygmunt Zalcwasser
Notes
Noted family members include: Aleksander Rajchman Melania Rajchmanowa Helena Radlińska Ludwik Rajchman Jan A. Rajchman John Rajchman Ludwik Hirszfeld

Aleksander Michał Rajchman (13 November 1890 – July or August 1940) was a mathematician of the Warsaw School of Mathematics of the Interwar period. He had origins in the Lwów School of Mathematics and contributed to real analysis, probability and mathematical statistics.