Carl Wilhelm Borchardt

Infobox_Scientist
name = Carl Borchardt

|300px
image_width = 220px
caption = Carl Wilhelm Borchardt (1817-1880)
birth_date = birth date|1817|2|22|df=y
birth_place = Berlin, Kingdom of Prussia
death_date = death date and age|1880|6|27|1817|2|22|df=y)
death_place = Rüdersdorf, German Empire
residence =
nationality =
field = Mathematician
work_institution = University of Berlin
alma_mater = University of Berlin
University of Königsberg
doctoral_advisor = Peter Dirichlet
doctoral_students =
known_for = Diagonalising symmetric matrices
prizes =
religion = Judaism
footnotes =

Carl Wilhelm Borchardt (22 February, 1817 – 27 June, 1880) was a German mathematician.

Borchardt was born to a Jewish family in Berlin.cite web
url = http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Borchardt.html
title = Carl Wilhelm Borchardt
accessdate = 2007-03-12
last = O’Connor
first = J.J.
coauthors = E.F. Robertson
year = 2006
month = August
work = The MacTutor History of Mathematics archive
publisher = University of St Andrews] His father, Moritz, was a respected merchant, and his mother was Emma Heilborn. Borchardt studied under a number of tutors, including Julius Plücker and Jakob Steiner. He studied at the University of Berlin under Dirichlet in 1836 and at the University of Königsberg in 1839. In 1848 he began teaching at the University of Berlin.

He did research in the area of arithmetic-geometric mean, continuing work by Gauss and Lagrange. He generalised the results of Kummer diagonalising symmetric matrices, using determinants and Sturm functions. He was also an editor of "Crelle's Journal" from 1856–80, during which time it was known as "Borchardt's Journal".

He died in Rüdersdorf, Germany.

References

Persondata
NAME= Borchardt, Carl Wilhelm
ALTERNATIVE NAMES=
SHORT DESCRIPTION= German Mathematician
DATE OF BIRTH= 22 February, 1817
PLACE OF BIRTH= Berlin, Germany
DATE OF DEATH= 27 June, 1880)
PLACE OF DEATH= Rüdersdorf, Germany