Francesco Maurolico (Latin: Franciscus Maurolycus; Italian: Francesco Maurolico; Greek: Φραγκίσκος Μαυρόλυκος; Sicilian: Francescu Maurolicu; 16 September 1494 – 22 July 1575) was an Italian mathematician and astronomer from the Kingdom of Sicily. He made contributions to the fields of geometry, optics, conics, mechanics, music, and astronomy. He edited the works of classical authors including Archimedes, Apollonius, Autolycus, Theodosius and Serenus. He also composed his own unique treatises on mathematics and mathematical science.
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👉 Francesco Maurolico in the context of Federico Commandino
Federico Commandino (1509 – 5 September 1575) was an Italian humanist and mathematician.
Born in Urbino, he studied at Padua and then at Ferrara, where he received his doctorate in medicine under Antonio Musa Brassavola. He had numerous patrons throughout his life. Initially, aided by Grassi, the bishop of Viterbo, he then came under the patronage of Pope Clement VIII. In Urbino, he was sponsored by Guidobaldo II della Rovere, but then came to Rome with cardinal Ranuccio Farnese. In Rome, he was patronized by Cardinal Cervini, who served briefly as Pope. Lured back to Urbino by Francesco Maria II della Rovere. In Urbino, he putatively met John Dee, and corresponded with the scholars Conrad Dasypodius (il Dasipodio), Gerolamo Cardano, Francesco Maurolico, and Christopher Clavius.
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Francesco Maurolico in the context of Euler characteristic
In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic (or Euler number, or Euler–Poincaré characteristic) is a topological invariant, a number that describes a topological space's shape or structure regardless of the way it is bent. It is commonly denoted by (Greek lower-case letter chi).
The Euler characteristic was originally defined for polyhedra and used to prove various theorems about them, including the classification of the Platonic solids. It was stated for Platonic solids in 1537 in an unpublished manuscript by Francesco Maurolico. Leonhard Euler, for whom the concept is named, introduced it for convex polyhedra more generally but failed to rigorously prove that it is an invariant. In modern mathematics, the Euler characteristic arises from homology and, more abstractly, homological algebra.