Giulio Ascoli (20 January 1843, Trieste, Austrian Empire – 12 July 1896, Milan) was a Jewish-Italian[1] mathematician.
In 1872 he became Professor of Algebra and Calculus of the Politecnico di Milano University.
From 1879 he was professor of mathematics at the Reale Istituto Tecnico Superiore, where, in 1901, was affixed a plaque that remembers him.
He made contributions to the theory of functions of a real variable and to Fourier series.
For example, Ascoli introduced equicontinuity in 1884, a topic regarded as one of the fundamental concepts in the theory of real functions.