Everything about Dirichlet totally explained
Johann Peter Gustav Lejeune Dirichlet [ləˈʒœndiʀiˈçle] (
February 13,
1805 –
May 5,
1859) was a
German mathematician credited with the modern "formal" definition of a
function.
His family hailed from the town of
Richelette in
Belgium, from which his surname "Lejeune Dirichlet" ("",
French for "the young chap from Richelette") was derived. That was also where his grandfather lived.
Dirichlet was born in
Düren, where his father was the
postmaster. He learned from
Georg Ohm at the
Jesuit gymnasium in
Cologne. His first paper was on
Fermat's last theorem comprising a partial proof for the case
, which was completed by
Adrien-Marie Legendre, who was one of the referees. Dirichlet also completed his own proof almost at the same time; he later also produced a full proof for the case
.
He graduated from the
University of Bonn in 1827 and taught as a
Privatdozent at the
University of Breslau, later teaching at the
University of Berlin. In 1855 Dirichlet began teaching at the
University of Göttingen.
In 1831, he married
Rebecca Henriette Mendelssohn Bartholdy, who came from a distinguished family of converts from Judaism to Christianity; she was a granddaughter of the philosopher
Moses Mendelssohn, daughter of
Abraham Mendelssohn Bartholdy and a sister of the composers
Felix Mendelssohn Bartholdy and
Fanny Mendelssohn.
Ferdinand Eisenstein,
Leopold Kronecker, and
Rudolf Lipschitz were his students. After his death, Dirichlet's lectures and other results in
number theory were collected, edited and published by his friend and fellow mathematician
Richard Dedekind under the title (
Lectures on Number Theory).
Further Information
Get more info on 'Dirichlet'.
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