Francesco Severi

Francesco Severi

Francesco Severi (13 April 1879, Arezzo, Italy - 8 December 1961, Rome) was an Italian mathematician. He is famous for his contributions to algebraic geometry. He became the effective leader of the Italian school of algebraic geometry.

Together with Federigo Enriques, he won the "Prix Bordin" from the French Academy of Sciences.

He contributed in a major way to birational geometry, the theory of algebraic surfaces, in particular of the curves lying on them, and the theory of moduli spaces. He wrote prolifically, and some of his work has subsequently been shown to be inadequate, in investigations in particular by Oscar Zariski and David Mumford. At the personal level he was remarkably touchy, and he was involved in a number of controversies.

See also: Néron-Severi group, Severi-Brauer variety.

Sources and further reading

* Also contains 12 further references.


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  • Francesco Severi — Naissance 13 avril 1879 Arezzo (Italie) Décès 8 décembre 1961 Rome (Italie) …   Wikipédia en Français

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  • SEVERI (F.) — SEVERI FRANCESCO (1879 1961) Mathématicien italien né à Arezzo et mort à Rome. Francesco Severi a consacré la plupart de ses travaux à la géométrie algébrique, poursuivant et complétant les résultats de G. Castelnuovo et F. Enriques en suivant… …   Encyclopédie Universelle

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  • Severi-Brauer variety — In mathematics, a Severi Brauer variety over a field K is an algebraic variety V which becomes isomorphic to projective space over an algebraic closure of K . Examples are conic sections C : provided C is non singular, it becomes isomorphic to… …   Wikipedia

  • Severi — Severi,   Francesco Buonaccorso Gherardo, italienischer Mathematiker, * Arezzo 13. 4. 1879, ✝ Rom 8. 12. 1961; Professor in Parma (1904), Padua (1905) und Rom (1922), einer der wichtigsten Vertreter der klassischen Schule der algebraischen… …   Universal-Lexikon

  • Néron–Severi group — In algebraic geometry, the Néron–Severi group of a variety is the group of divisors modulo algebraic equivalence; in other words it is the group of components of the Picard scheme of a variety. Its rank is called the Picard number. It is named… …   Wikipedia

  • Hartogs' extension theorem — In mathematics, precisely in the theory of functions of several complex variables, Hartogs extension theorem is a statement about the singularities of holomorphic functions of several variables. Informally, it states that the support of the… …   Wikipedia

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