Gustavo Sannia (13 May 1875 – 21 December 1930) was an Italian mathematician working in

differential geometry Differential geometry is a mathematical discipline that studies the geometry of smooth shapes and smooth spaces, otherwise known as smooth manifolds. It uses the techniques of differential calculus, integral calculus, linear algebra and multili ...

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 summation of series. He was the son of

Achille Sannia Achille Sannia (14 April 1822 – 2 August 1892) was an Italian mathematician and politician. Biography Achille Sannia was a senator of the Kingdom of Italy. He was born in Campobasso and later moved from Molise to Naples to continue his stu ...

, mathematician and senator of the

Kingdom of Italy The Kingdom of Italy ( it, Regno d'Italia) was a state that existed from 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 1946, when civil discontent led to ...

Biography

Gustavo Sannia was born 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 ...

. Sannia lived in

Turin Turin ( , Piedmontese language, Piedmontese: ; it, Torino ) is a city and an important business and cultural centre in Northern Italy. It is the capital city of Piedmont and of the Metropolitan City of Turin, and was the first Italian capital ...

from 1902 to 1915 and from 1919 to 1922, first as an assistant to D'Ovidio and Fubini and later as a

professor Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who pr ...

. From 1915 to 1919, he taught at the

University of Cagliari The University of Cagliari ( it, Università degli Studi di Cagliari) is a university in Cagliari, Sardinia, Italy. It was founded in 1606 and is organized in 11 faculties. History The ''Studium Generalis Kalaritanum'' was founded in 1606 alon ...

. Sannia returned to Naples in 1924, where he would remain until his premature death.

Selected publications

*"Deformazioni infinitesime delle curve inestendibili e corrispondenza per ortogonalità di elementi." Rendiconti del Circolo Matematico di Palermo (1884–1940) 21, no. 1 (1906): 229–256. *"Nuova esposizione della geometria infinitesimale délle congruenze rettilinee." Annali di Matematica Pura ed Applicata (1898–1922) 15, no. 1 (1908): 143–185. *"Nuovo metodo per lo studio delle congruenze e dei complessi di raggi." Rendiconti del Circolo Matematico di Palermo (1884–1940) 33, no. 1 (1912): 328–340. *"Osservazioni sulla «Réclamation de priorité» del sig. Zindler." Annali di Matematica Pura ed Applicata (1898–1922) 19, no. 1 (1912): 57–59. *"Su due forme differenziali che individuano una congruenza o un complesso di rette." Rendiconti del Circolo Matematico di Palermo (1884–1940) 33, no. 1 (1912): 67–74. *"Sui differenziali totali di ordine superiore." Rendiconti del Circolo Matematico di Palermo (1884–1940) 36, no. 1 (1913): 305–316. *"Nuovo metodo di sommazione delle serie: Estensione del metodo di Borel." Rendiconti del Circolo Matematico di Palermo (1884–1940) 42, no. 1 (1916): 303–322. *"Riavvicinamento di geometrie differenziali delle superficie: metriche, affine, proiettiva." Annali di Matematica Pura ed Applicata (1898–1922) 31, no. 1 (1922): 165–189. *"Nuova trattazione della geometria proiettivo-differenziale delle curve sghembe." Annali di Matematica Pura ed Applicata 3, no. 1 (1926): 1–25.

References

Bibliography

* G. F. Tricomi, ''Matematici italiani del primo secolo dello stato unitario'', Memorie dell'Accademia delle Scienze di Torino. Classe di Scienze fisiche matematiche e naturali, 4th series, vol. 1, 1962.

External links

Gustavo Sannia at mathematica.sns.it
Italian mathematicians 1930 deaths 1875 births {{mathematician-stub