Pasquale del Pezzo, Duke of

Caianello Caianello is a ''comune'' (municipality) in the Province of Caserta in the Italian region Campania, located about northwest of Naples and about northwest of Caserta. Caianello borders the following municipalities: Marzano Appio, Roccamonfina, T ...

and Marquis of Campodisola (2 May 1859 – 20 June 1936), 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 ...

. He was born in

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...

(where his father was a representative of the Neapolitan king) on 2 May 1859. He died in

Naples Naples (; it, Napoli ; nap, Napule ), from grc, Νεάπολις, Neápolis, lit=new city. is the regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 909,048 within the city's adminis ...

on 20 June 1936. His wife was the

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

writer

Anne Charlotte Leffler Anne Charlotte Edgren-Leffler, duchess of Cajanello (1 October 184921 October 1892), was a Swedish author. Biography She was the daughter of the school principal John Olof Leffler and Gustava Wilhelmina Mittag. Her brother was noted mathematician ...

, sister of the great mathematician

Gösta Mittag-Leffler Magnus Gustaf "Gösta" Mittag-Leffler (16 March 1846 – 7 July 1927) was a Swedish mathematician. His mathematical contributions are connected chiefly with the theory of functions, which today is called complex analysis. Biography Mittag-Leffle ...

(1846–1927). At the

University of Naples The University of Naples Federico II ( it, Università degli Studi di Napoli Federico II) is a public university in Naples, Italy. Founded in 1224, it is the oldest public non-sectarian university in the world, and is now organized into 26 depar ...

, he received first a law degree in 1880 and then in 1882 a math degree. He became a pre-eminent professor at that university, teaching

projective geometry In mathematics, projective geometry is the study of geometric properties that are invariant with respect to projective transformations. This means that, compared to elementary Euclidean geometry, projective geometry has a different setting, pro ...

, and remained at that University, as rector, faculty president, etc. He was

mayor of Naples The mayor of Naples is an elected politician who, along with the Naples’s City Council of 40 members, is accountable for the strategic government of Naples. The following is a list of Mayors of Naples, Italy. List Kingdom of the Two Sicilies ...

from 1914 to 1917. Starting in 1919 he became a

Senator of the Kingdom of Italy The Senate of the Kingdom of Italy () was the upper house of the bicameral parliament of the Kingdom of Italy, officially created on 4 March 1848, acting as an evolution of the original Subalpine Senate. It was replaced on 1 January 1948 by the ...

until his death. He is remembered particularly for first describing what became known as a

del Pezzo surface In mathematics, a del Pezzo surface or Fano surface is a two-dimensional Fano variety, in other words a non-singular projective algebraic surface with ample anticanonical divisor class. They are in some sense the opposite of surfaces of general ...

References

* *G. Gallucci, Rend. R. Acc. delle Scienze Fisiche e Mat. di Napoli, 8, 1938, 162–167.

External links

Biography
PRISTEM –

Bocconi University Bocconi University ( it, Università Commerciale Luigi Bocconi, ) is a private university in Milan, Italy. Bocconi provides education in the fields of economics, finance, law, management, political science, public administration and computer sci ...

Bibliography
(

University of Palermo The University of Palermo ( it, Università degli Studi di Palermo) is a university located in Palermo, Italy, and founded in 1806. It is organized in 12 Faculties. History The University of Palermo was officially founded in 1806, although its ...

)
Familytree
{{DEFAULTSORT:del Pezzo, Pasquale 1859 births 1936 deaths 19th-century Italian mathematicians Members of the Senate of the Kingdom of Italy Algebraic geometers Italian algebraic geometers