Boris Yakovych Bukreyev (September 6, 1859 - October 2, 1962) was a Ukrainianmathematician who worked in the areas of complex functions and differential equations. September 6 is the 249th day of the year (250th in leap years). ... 1859 (MDCCCLIX) is a common year starting on Saturday of the Gregorian calendar (or a common year starting on Monday of the Julian calendar). ... October 2 is the 275th day (276th in leap years) of the year in the Gregorian Calendar, with 90 days remaining. ... 1962 (MCMLXII) was a common year starting on Monday (the link is to a full 1962 calendar). ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Complex analysis is the branch of mathematics investigating holomorphic functions, i. ... In mathematics, a differential equation is an equation in which the derivatives of a function appear as variables. ...
In 1889, Bukreyev became a professor of mathematics at the University of Kiev, in the Ukraine. He studied Fuchsian functions of rank zero. He was interested in projective and non-Euclidean geometry. He worked on differential invariants and parameters in the theory of surfaces. The history of mathematics interested him. 1889 (MDCCCLXXXIX) was a common year starting on Tuesday (see link for calendar). ... For other meanings of mathematics or math, see mathematics (disambiguation). ... Shevchenko Kyiv University in Kyiv is the largest and most important university of Ukraine. ... Behavior of lines with a common perpendicular in each of the three types of geometry The term non-Euclidean geometry (also spelled: non-euclidian geometry) describes hyperbolic, elliptic and absolute geometry, which are contrasted with Euclidean geometry. ...
Books
A Course on Applications of Differential and Integral Calculus to Geometry
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