- William Feller
Infobox Scientist

box_width = 300px

name = Willy Feller

image_size = 300px

caption = Vilim "Willy" Feller (1906-1970)

birth_date =July 7 1906

birth_place =Zagreb ,Croatia

death_date =January 14 1970

death_place =New York ,USA

residence =

citizenship = American

nationality = Croatian

ethnicity =Croatian -Austrian -Polish-Jewish

fields =Mathematician

workplaces =University of Kiel University of Copenhagen

University of Stockholm

University of Lund

Brown University Cornell University Princeton University

alma_mater =University of Zagreb University of Göttingen

doctoral_advisor =Richard Courant

academic_advisors =

doctoral_students =George Forsythe Lawrence Shepp

notable_students =

known_for =Feller process Feller's coin-tossing constants Feller-continuous process Proof by intimidation Feller transition function

Feller semigroup Feller's property Feller Brownian motions

Feller's test for explosions

Lindeberg-Feller condition Feller operator Feller potential Feller measures Krein-Feller differential operators Kolmogorov-Feller equation

author_abbrev_bot =

author_abbrev_zoo =

influences =Stanko Vlögel

influenced =

awards =National Medal of Science (1969)

religion =Roman Catholic

footnotes =**William (Vilim) Feller**"né" Vilibald Srećko Feller (July 7 1906 –January 14 1970 ), was aCroatia n-Americanmathematician specializing inprobability theory .**Early life and education**Feller was born in

Zagreb to Ida Oemichen-Perc, a Croatian-AustrianCatholic , and Eugene Victor Feller, who was born to a PolishJew named David Feller and an Austrian Catholic named Elsa Holzer. [*[*] Eugen was a famous chemist and created "Elsa fluid" named after his mother. According to*http://www.croatianhistory.net/etf/feller.html#eugen William Feller's Origins*]Gian-Carlo Rota , Feller's father's surname was a "Slavic tongue twister", which William changed at the age of twenty [*cite book*] —but as can be seen, this claim was false. His christened name, Vilibald, was chosen by his

last = Rota

first = Gian-Carlo

authorlink = Gian-Carlo Rota

year = 1996

title =**Indiscrete Thoughts**

publisher = Birkhäuser

id = ISBN 0-8176-3866-0Roman Catholic mother for the saint day of his birthday. [*MacTutor Biography|id=Feller|title=William Feller*] In his school documentation, the small municipality ofDonja Stubica inZagorje is mentioned. This is the birthplace of his father, who was anapothecary and owner of a company producing hygienic utensils andcosmetics .William finished his elementary and middle education in Zagreb, as well as two years of his math study. From 1925, he continued his study in

Göttingen ,Germany where he gained the doctoral degree in 1926under the supervision ofRichard Courant , with his work "Über algebraisch rektifizierbare transzendente Kurven".**Work**Feller held a

docent position at the University ofKiel beginning in 1928. Because he refused to sign a Nazi oath, [*cite web*] he fled the Nazis and went to

title=Biography of William Feller

work=History of William Feller

url=http://www.croatianhistory.net/etf/feller.html#scandinavia

accessdate=2006-06-27Copenhagen ,Denmark in 1933. He also lectured inSweden (Stockholm andLund ). Finally, in 1939 he arrived in the U.S. where he became acitizen in 1944 and was on the faculty at Brown and Cornell. In 1950 he became a professor atPrinceton University .The works of Feller are contained in 104 papers and two books on a variety of topics such as

mathematical analysis , theory ofmeasurement ,functional analysis ,geometry , anddifferential equations .He was among the foremost probabilists outside of

Russia . In the middle of the 20th century, probability was not generally viewed as a fruitful area ofresearch in mathematics except inRussia , whereKolmogorov and others were influential. Feller contributed to the study of the relationship betweenMarkov chain s anddifferential equation s. He wrote a two-volume treatise on probability that has since been universally regarded as one of the most important treatments of that subject.**Results**Numerous topics relating to probability are named after him, including the

Feller process ,Feller's explosion test ,Feller-Brown movement ,Feller property andLindberg-Feller theorem . Books written by him and published as textbooks are considered invaluable in the popularisation of the theory of probability and among the best written during the 20th century.Despite the fact that he spent the better part of his life out of

Croatia where he was born and grew up, and where he started hiseducation , he was in touch with his relatives there, and with his colleagues atUniversity of Zagreb , whom he sometimes visited and lectured. He received numerous awards and was an honoured member of numerous educational institutions (inBoston ,Zagreb ,London ,Copenhagen ).Feller initiated the publication of the now well-known review journal "

Mathematical Reviews ".**References****External links***

* [*http://jagor.srce.hr/zuh/velikani/vel_int.htm Croatian Giants of Science - in Croatian*]

*MacTutor Biography|id=Feller|title=William Feller

* [*http://libweb.princeton.edu/libraries/firestone/rbsc/finding_aids/mathoral/pmcxrota.htm "Fine Hall in its golden age: Remembrances of Princeton in the early fifties" by Gian-Carlo Rota.*] Contains a section on Feller at Princeton.

* [*http://www.croatianhistory.net/gif/felln.jpgFeller Matriculation Form giving personal details*]

*Wikimedia Foundation.
2010.*

### Look at other dictionaries:

**William Feller**— Naissance 7 juillet 1906 Zagreb (Croatie) Décès 14 janvier 1970 … Wikipédia en Français**William Feller**— Nacimiento 7 de julio de 1906 Zagreb Fallecimiento 14 de enero de 1970 … Wikipedia Español**William Feller**— William (Vilim) Feller, genannt Willy Feller, (* 7. Juli 1906 in Zagreb; † 14. Januar 1970 in New York City) war ein US amerikanischer Mathematiker mit besonderen Verdiensten auf dem Gebiet der Wahrscheinlichkeitstheorie. Feller begann sein Ma … Deutsch Wikipedia**Feller**— ist der Familienname folgender Personen: Adolf Feller (1879–1931), schweizerischer Unternehmer Anke Feller (* 1971), deutsche Leichtathletin Dieter Feller (* 1942), deutscher Fußballspieler Elisabeth Feller (1910–1973), schweizerischer… … Deutsch Wikipedia**Feller's coin-tossing constants**— are a set of numerical constants which describe asymptotic probabilities that in n independent tosses of a fair coin, no run of k consecutive heads (or, equally, tails) appears. William Feller showed [Feller, W. (1968) An Introduction to… … Wikipedia**Feller**— The name Feller can refer to: * William Feller, a mathematician * Catherine Feller, an actor and educator * Karl Feller, an American trade unionist * Bob Feller, an American former Major League Baseball pitcher and Hall of Famer * Dick Feller, an … Wikipedia**Feller**— Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Patronyme Feller est un nom de famille notamment porté par : Joachim Feller (1638 1691), écrivain allemand ; Joachim Friedrich Feller (1673… … Wikipédia en Français**Feller-continuous process**— In mathematics, a Feller continuous process is a continuous time stochastic process satisfying a stronger continuity property than simple sample continuity. Intuitively, a Feller continuous process is one for which the expected value of suitable… … Wikipedia**Feller Brown**— (b. August 14, 1945 in Old Hickory, Tennessee) is a member of the Metropolitan Council of Nashville and Davidson County, representing the 11th district. He is President of Feller Brown Realty and Auction and the Tennessee Auctioneer Association.… … Wikipedia**Feller**— Feller, William, Mathematiker, *Zagreb 7. 7. 1906, ✝New York 14. 1. 1970; studierte in Zagreb und Göttingen, wirkte bis zu seiner Übersiedelung in die USA u. a. in Kiel und Stockholm. Feller arbeitete auf den Gebieten der Infinitesimalrechnung … Universal-Lexikon