Iulian Sokhotskii

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sokhotskii, Iulian Vasil’Evich


Born Jan. 24 (Feb. 5), 1842, in Warsaw; died Dec. 14, 1927, in Leningrad. Russian mathematician.

Sokhotskii graduated in 1866 from the University of St. Petersburg and became a professor there in 1873. His principal works dealt with the theory of functions of a complex variable. In his master’s dissertation, “Theory of Integral Residues and Applications” (1868), he formulated and proved a theorem on the behavior of analytic functions in the neighborhood of an essential singularity. In his doctoral dissertation, “On Definite Integrals and Functions Used in Expansions in Series” (1873), he studied the boundary values of Cauchy integrals under extremely general conditions. These results were of importance for applications in mechanics. Sokhotskii was the author of the textbook Advanced Algebra (part 1, Solution of Numerical Equations, 1882; part 2, Principles of Number Theory, 1888).


Markushevich, A. I. “Vklad lu. V. Sokhotskogo v obshchuiu teoriiu analiticheskikh funktsii.” In Istoriko-matematicheskk issledo-vaniia, fase. 3. Moscow-Leningrad, 1950.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.