Circolo Matematico di Palermo

The Circolo Matematico di Palermo (Mathematical Circle of Palermo) is an Italian mathematical society, founded in Palermo by Sicilian geometer Giovanni B. Guccia in 1884. It began accepting foreign members in 1888, and by the time of Guccia's death in 1914 it had become the foremost international mathematical society, with approximately one thousand members. However, subsequently to that time it declined in influence.

Rendiconti del Circolo Matematico di Palermo (Rend. Circ. Mat. Palermo, ISSN 0009-725X), the journal of the society, was published in a first series from 1885 to 1941 and in a second ongoing series beginning in 1952. It is currently published by Springer Science+Business Media; its editor-in-chief is Pasquale Vetro.

Influential papers published in the Rendiconti include Henri Poincaré's (1906), the introduction of normal numbers, the original publications of the Plancherel theorem and Carathéodory's theorem,Hermann Weyl's proof of the equidistribution theorem, and one of the appendices to Henri Poincaré's "Analysis Situs".

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