Pavel Ossipowitsch Somow

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Pavel Osipovich (Iosifovich) Somov ( Russian Павел Осипович (Иосифович) Сомов * June 25 . Jul / 7. July  1852 greg. , † 1. January 1919 ) was a Russian mathematician , physicist and university teacher .

Life

Somow, son of the mathematician Ossip Ivanovich Somow , attended the Karl Ivanovich Mays school in St. Petersburg from 1861 to 1869. He graduated from the University of St. Petersburg in 1873 as a candidate for mathematical sciences. He then attended lectures on mathematics and mathematical physics at the Humboldt University in Berlin .

From 1874 to 1887 Somow taught mechanics and mathematics at the St. Petersburg Forest Institute. He also taught theoretical mechanics in the mining officer classes for engineering officers in Kronstadt (1877–1880) and in the St. Petersburg higher courses for women (1880–1887). In 1885, after defending his dissertation on the kinematics of a two-dimensional, similarly variable system , he received his doctorate for a master's degree in applied mathematics . He was then a private lecturer at the University of St. Petersburg (1886–1887).

In 1886 Somow became Professor of Analytical Mechanics at the University of Warsaw . In 1891, after defending his dissertation on the kinematics of a collinearly variable general system, he received his doctorate in applied mathematics. In 1898 he became a professor of theoretical mechanics at the Warsaw Polytechnic Institute . In 1903 he gave a lecture in St. Petersburg at the Nikolai Naval Academy . After a leave of absence in 1905, he returned to St. Petersburg from Warsaw in 1906 .

Somow's main research interests were kinematics and the theory of the structure of mechanical systems as well as vector analysis and screw theory . He developed the concept of the degrees of freedom of the kinematic chain and examined the kinematics of similarly variable and collinearly variable systems. He developed a structure formula for kinematic chains and gears , which was later refined by Alexander Petrovich Malyshev and known as the Somow-Malyshev formula .

Somow was married and had three children.

Works (selection)

  • About a sentence from Burmester . In: Journal of Mathematics and Physics . 1883, p. 248 .
  • About the movement of similarly variable plane systems . In: Journal of Mathematics and Physics . 1885, p. 193 .
  • About screw speeds of a solid body with different numbers of support surfaces . In: Journal of Mathematics and Physics . tape 42 , 1897, pp. 133-153 .

Web links

Individual evidence

  1. ↑ a b c d Bogoljubow OM (Ed.): Математики. Механики. Биографический справочник . Наукова думка, Kiev 1983, p. 447 .
  2. ↑ a b c d e Сомов (Павел Иосифович) . In: Brockhaus-Efron . XXXa, 1900, p. 852-853 ( Wikisource [accessed September 27, 2019]).
  3. ↑ a b c Общество Друзей Школы Карла Мая: Павел Иосифович Сомов (accessed September 27, 2019).
  4. ^ Petre P. Teodorescu: Mechanical Systems, Classical Models: Volume 1: Particle Mechanics . Springer Science + Business Media , 2007, p. 345 .
personal data
SURNAME Somow, Pavel Ossipovich
ALTERNATIVE NAMES Somow, Pawel Iossifowitsch; Сомов, Павел Осипович; Сомов, Павел Иосифович (Russian)
BRIEF DESCRIPTION Russian mathematician, physicist and university professor
DATE OF BIRTH July 7, 1852
DATE OF DEATH January 1, 1919