Giusto Bellavitis

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Giusto Bellavitis
Observationes de quibusdam solutionibus analyticis (1847)

Giusto Bellavitis (born November 22, 1803 in Bassano del Grappa , † November 6, 1880 in Tezze sul Brenta near Bassano del Grappa) was an Italian mathematician and politician .

Bellavitis came from a patrician family in Bassano, but his family was not wealthy. He did not go to school but was tutored at home by his father. This awoke his interest in mathematics and he studied mathematics mainly autodidactically by studying literature. From 1822 he worked like his father for the city administration, but until 1832 unpaid. In his free time he dealt with mathematics and especially geometry, about which he published from 1834. In 1843 he became a mathematics professor in Vicenza , which enabled him to marry his long-time fiancée, and in 1845 professor of geometry in Padua , from 1867 the chair of analytical and complementary algebra. In 1866 he was appointed Senator of the Kingdom of Italy .

In 1835 he introduced a concept of the directional dependence of lines in Euclidean geometry ( equipollence ), which gave him a place among the forerunners of the vector concept.

He also dealt with algebraic geometry (including the completion of Newton's classification of cubes) and wrote a textbook on descriptive geometry. In addition to geometry, he dealt with probability theory , the quaternions of William Rowan Hamilton (which he included in his geometric calculus from 1858 after he had done so early on in 1832 for complex numbers), optics, electricity and mechanics, algebra (equation theory followed by to Paolo Ruffini ) and number theory .

In 1879 he became a member of the Accademia dei Lincei , in 1850 of the Società Italiana dei Quaranta and in 1840 of the Istituto Veneto .

Fonts

  • Saggio sull'algebra degli immaginari, 1852
  • Sposizione del Metodo della Equipollenze, 1854
  • Calcolo dei Quaternioni di WR Hamilton e sua Relazione col Metodo delle Equipollenze, 1858
  • Lezioni di Geometria Descrittiva, 2nd edition 1868

Web links

Individual evidence

  1. Michael J. Crowe, A history of vector analysis, University of Notre Dame Press, 1967, pp. 52-54