James Joseph Sylvester


James Joseph Sylvester

Infobox Scientist
box_width = 300px
name = James Joseph Sylvester


image_width = 300px
caption = James Joseph Sylvester (1814-1897)
birth_date = birth date|1814|09|03
birth_place = London, England
death_date = death date and age|1897|03|15|1814|09|03
death_place = Oxford, Oxfordshire, England
residence = flag|USA
citizenship =
nationality = flag|UK
religion = Judaism
ethnicity =
field = Mathematics
work_institutions = Johns Hopkins University
alma_mater =
doctoral_advisor =
doctoral_students =
notable_students = Isaac Todhunter
Florence Nightingale
known_for = Matrix theory
author_abbrev_bot =
author_abbrev_zoo =
influences =
influenced =
prizes =
footnotes =

James Joseph Sylvester (September 3, 1814 LondonMarch 15, 1897 Oxford) was an English mathematician. He made fundamental contributions to matrix theory, invariant theory, number theory, partition theory and combinatorics. He played a leadership role in American mathematics in the later half of the 19th century as a professor at the Johns Hopkins University and as founder of the American Journal of Mathematics. At his death, he was professor at Oxford.

Biography

Sylvester was born James Joseph. His father, Abraham Joseph, was a merchant. The Joseph family were Jewish, and James's career suffered for his being Jewish. James adopted the surname Sylvester when his older brother did so upon emigration to the United States—a country which at that time required all immigrants to have a given name, a middle name, and a surname. At the age of 14, Sylvester started attending the University of London, where he was a student of Augustus De Morgan. His family withdrew him from the University after he was accused of threatening a fellow student with a knife. Following this, he attended the Liverpool Royal Institution. Though he excelled academically, Sylvester was tormented by his fellow students on account of his Jewish origins.Fact|date=January 2008 Because of the abuse he received, he ran away, taking a boat to Dublin. While there, he was recognized on the street by Richard Keatinge who was Judge of the Prerogative Court of Ireland, and whose wife was a cousin of Sylvester; Keatinge arranged for the boy's return to Liverpool.Fact|date=July 2008

Sylvester began his study of mathematics at St John's College, Cambridge in 1831. Although his studies were interrupted for almost two years due to a prolonged illness, nevertheless ranked second in Cambridge's famous mathematical examination, the tripos, for which he in 1837. However, Sylvester was not issued a degree, because graduates at that time were required to state their acceptance of the Thirty-Nine Articles of the Church of England, and Sylvester, being Jewish refused to do so. For the same reason, he was unable to compete for a Fellowship or obtain a Smith's prize. In 1838 Sylvester became professor of natural philosophy at University College London UCL. In 1841, he was awarded a BA and an MA by Trinity College, Dublin. In the same year he moved to the United States to become a professor at the University of Virginia for about six months, and returned to England in November 1843.

On his return to England he studied law, alongside fellow British lawyer/mathematician Arthur Cayley, with whom he made significant contributions to matrix theory while working as an actuary. One of his private pupils was Florence Nightingale. He did not obtain a position teaching university mathematics until 1855, when he was appointed professor of mathematics at the Royal Military Academy, Woolwich, from which he retired in 1869, because the compulsory retirement age was 55. The Woolwich academy initially refused to pay Sylvester his full pension, and only relented after a prolonged public controversy, during which Sylvester took his case to the letters page of "The Times".

One of Sylvester's lifelong passions was for poetry; he read and translated works from the original French, German, Italian, Latin and Greek, and many of his mathematical papers contain illustrative quotes from classical poetry. In 1870, following his early retirement, Sylvester published a book entitled "The Laws of Verse" in which he attempted to codify a set of laws for prosody in poetry.

In 1877 Sylvester again crossed the Atlantic Ocean to become the inaugural professor of mathematics at the new Johns Hopkins University in Baltimore, Maryland. His salary was $5,000 (quite generous for the time), which he demanded be paid in gold. In 1878 he founded the "American Journal of Mathematics". The only other mathematical journal in the U.S. at that time was the "Analyst", which eventually became the "Annals of Mathematics".

In 1883, he returned to England to take up the Savilian Professor of Geometry at Oxford University. He held this chair until his death, although in 1892 the University appointed a deputy professor to the same chair.

Sylvester invented a great number of mathematical terms such as discriminant. He has given a name to Euler's totient function φ("n"). His collected scientific work fills four volumes. In 1880, the Royal Society of London awarded Sylvester the Copley Medal, its highest award for scientific achievement; in 1901, it instituted the Sylvester Medal in his memory, to encourage mathematical research.

Sylvester House, a portion of an undergraduate dormitory at Johns Hopkins, is named in his honour."'

References

*Unless otherwise noted, information in this article is based on: cite web
url= http://www-history.mcs.st-andrews.ac.uk/Biographies/Sylvester.html
title= James Joseph Sylvester
accessdate= 2008-07-08
last= O'Connor
first= John J.
coauthors= Edmund F. Robertson
year= 2005
month= August
work= MacTutor History of Mathematics archive
publisher= University of St Andrews

Bibliography

Primary:
* 1904-10. "Collected Mathematical Papers" in 4 vols. Edited by H. F. Baker. New York. ( [http://www.archive.org/details/collectedmathem01sylvrich PDF/DjVu] copy of volume 1 at Internet Archive; [http://quod.lib.umich.edu/cgi/t/text/text-idx?c=umhistmath&idno=AAS8085 PDF copy] of Vols. 2-4 at University of Michigan)

* 1839. "On rational derivation from equations of coexistence, that is to say, a new and extended theory of elimination, Part I," "Philos. Mag. 15": 428-435.
*1857. "On the partition of numbers," "Quart. J. Math. I": 141-152.
*1869. "Presidential address to Section A of the British Association" in Ewald, William B., ed., 1996. "From Kant to Hilbert: A Source Book in the Foundations of Mathematics", 2 vols. Oxford Uni. Press: 511-22.
*1897. "Outlines of seven lectures on the partition of numbers," "Proc. Lond. Math. Soc. 28": 33-96.

Secondary:
* Franklin, "Address Commemorative of Sylvester", (Baltimore, 1896)

ee also

*Chebyshev–Sylvester constant
*Coin problem
*Greedy algorithm for Egyptian fractions
*Sylvester's sequence
*Sylvester's formula for evaluating matrix functions
*Sylvester's determinant theorem
*Sylvester matrix (resultant matrix)
*Sylvester–Gallai theorem
*Sylvester's law of inertia

External links

*
*
* [http://www.hti.umich.edu/cgi/t/text/text-idx?c=umhistmath;page=browse;key=author;cc=umhistmath;value=sy Collected papers] – from the University of Michigan Historical Math Collection
* [http://rpo.library.utoronto.ca/poet/403.html Selected Poetry of James Joseph Sylvester]


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