Delfino Codazzi (7 March 1824 in
Lodi – 21 July 1873 in
Pavia
Pavia (, , , ; la, Ticinum; Medieval Latin: ) is a town and comune of south-western Lombardy in northern Italy, south of Milan on the lower Ticino river near its confluence with the Po. It has a population of c. 73,086. The city was the cap ...
) was an Italian
mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems.
Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change.
History
On ...
.
[U. Amaldi, in Enciclopedia italiana, app. 1, Rome, (1938), 438.]
He made some important contributions to the
differential geometry of surfaces, such as the
Codazzi–Mainardi equations.
Biography
He graduated in mathematics at the
University of Pavia
The University of Pavia ( it, Università degli Studi di Pavia, UNIPV or ''Università di Pavia''; la, Alma Ticinensis Universitas) is a university located in Pavia, Lombardy, Italy. There was evidence of teaching as early as 1361, making it one ...
, where he was a pupil of
Antonio Bordoni. For a long period Codazzi taught first at the Ginnasio Liceale of
Lodi, then at the liceo of
Pavia
Pavia (, , , ; la, Ticinum; Medieval Latin: ) is a town and comune of south-western Lombardy in northern Italy, south of Milan on the lower Ticino river near its confluence with the Po. It has a population of c. 73,086. The city was the cap ...
. Meanwhile, he devoted himself to research in
differential geometry.
In 1865, he was appointed professor of complementary algebra and
analytic geometry at University of Pavia. He remained in his position at Pavia until his death in 1873.
He also obtained results concerning isometric lines,
geodesic triangles,
equiareal map In differential geometry, an equiareal map, sometimes called an authalic map, is a smooth map from one surface to another that preserves the areas of figures.
Properties
If ''M'' and ''N'' are two Riemannian (or pseudo-Riemannian) surfaces, the ...
ping and the stability of floating bodies.
See also
*
Gauss–Codazzi equations
In Riemannian geometry and pseudo-Riemannian geometry, the Gauss–Codazzi equations (also called the Gauss–Codazzi–Weingarten-Mainardi equations or Gauss–Peterson–Codazzi Formulas) are fundamental formulas which link together the induced ...
*
Codazzi tensor In the mathematical field of differential geometry, a Codazzi tensor (named after Delfino Codazzi) is a symmetric 2-tensor whose covariant derivative is also symmetric. Such tensors arise naturally in the study of Riemannian manifolds with harmo ...
Notes
External links
*
An Italian short biography of Delfino Codazziin ''Edizione Nazionale Mathematica Italiana'' online.
1824 births
1873 deaths
People from Lodi, Lombardy
Differential geometers
19th-century Italian mathematicians
{{Italy-mathematician-stub