Giulio Ascoli (mathematician)
Giulio Ascoli (born January 20, 1843 in Trieste , † July 12, 1896 in Milan ) was an Italian mathematician .
Ascoli finished studying mathematics at the Scuola Normale Superiore in Pisa in 1868 . From 1872 he was professor of algebra and analysis at the Milan Polytechnic . In 1879 he became professor of mathematics at the Polytechnic in Turin (Reale Istituto Tecnico Superiore).
He was a corresponding member of the Milan Science Academy ( Istituto Lombardo ).
His main field were real functions and Fourier series. In 1884 he introduced equal continuity . The phrase by Arzelà-Ascoli can be traced back to him, also named after Cesare Arzelà , who expanded it in 1889. In this he proved the relative compactness (as was formulated later) of sets of equally continuous and uniformly bounded functions. This became a basis for the further development of functional analysis at Maurice Fréchet .
His son Guido Ascoli was also a well-known mathematician.
Web links
- Isidore Singer, Alexander S. Chessin: ASCOLI, GIULIO. In: Isidore Singer (Ed.): Jewish Encyclopedia . Funk and Wagnalls, New York 1901-1906.
- Enciclopedia Treccani
Individual evidence
- ↑ Article Giulio Ascoli, in: Guido Walz, Lexikon der Mathematik, Spektrum Akad. Verlag
- ↑ Ascoli, Le curve limiti di una varietà data di curve, Mem. Accad. Lincei, Volume 18, 1883, pp. 521-586
- ^ John J. O'Connor, Edmund F. Robertson : Giulio Ascoli (mathematician). In: MacTutor History of Mathematics archive .
| personal data | |
|---|---|
| SURNAME | Ascoli, Giulio |
| BRIEF DESCRIPTION | Italian mathematician |
| DATE OF BIRTH | January 20, 1843 |
| PLACE OF BIRTH | Trieste |
| DATE OF DEATH | July 12, 1896 |
| Place of death | Milan |