Johann Heinrich Graf

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Johann Heinrich Graf

Johann Heinrich Graf (born August 16, 1852 in Töss , † June 17, 1918 in Bern ) was a Swiss mathematician and mathematician .

biography

Johann Heinrich Graf, the son of a canton police officer, attended schools in Töss and Zurich and studied from 1868 to 1871 at the Protestant teachers' college in Muristalden near Bern. He then studied at the Polytechnic in Zurich with a teacher’s diploma in 1874. Subsequently, he was a teacher of mathematics and physics at the Lerberschule in Bern (from 1892 Freie Gymnasium Bern ). In 1877 he received his doctorate under Ludwig Schläfli at the University of Bern ( contributions to the theory of Riemann surfaces ). In addition to his school activities (in 1885 he became the deputy rector of his school) he became a private lecturer at the University of Bern in 1878. In 1890 he became associate professor and in 1892, as successor to Schläfli, full professor, which he remained until his death. In 1905/06 he was Vice Chancellor of the University of Bern.

He dealt with special functions ( Bessel functions , gamma functions , spherical functions ), often following Schläfli, differential equations , actuarial mathematics , cartography and the history of mathematics (publication of Schläfli's correspondence, discovery of manuscripts by Jakob Steiner in the Bern City Library) and natural sciences.

From 1895 to 1918 he was President of the Swiss Library Commission and one of the founders of the Swiss National Library . From 1889 to 1895 he was a member of the Bern city council. From 1883 to 1910 he was editor of the communications of the Natural Research Society in Bern .

Web links

Individual evidence

  1. ^ Johann Heinrich Graf in the Mathematics Genealogy Project (English)Template: MathGenealogyProject / Maintenance / id used
personal data
SURNAME Count, Johann Heinrich
BRIEF DESCRIPTION Swiss mathematician and mathematician historian
DATE OF BIRTH August 16, 1852
PLACE OF BIRTH Töss (Winterthur)
DATE OF DEATH June 17, 1918
Place of death Bern