Organizing comittee

Nicola Ciccoli (Perugia)

Alessandra Frabetti (Lyon)

Mathieu Stienon (Penn State)

Ping Xu (Penn State)

Fontana Maggiore, one of the main city symbols of Perugia. Built in 1275-78, by Nicola and Giovanni Pisano. On its lower parts basreliefs of the liberal arts: between them Arithmetic and Geometry.