Boris Koyalovich

Boris Mikhailovich Koyalovich (Koyalovitch, Kojalovich, Kojalowitsch, Kojałowicz) (May 2, 1867 – December 29, 1941) was a mathematician and chess master from the Russian Empire and later the Soviet Union.

Biography

Koyalovich was born on May 2, 1867.^[1] He was a professor of mathematics at the Saint Petersburg State Institute of Technology.^[2][3] In 1924 he was an Invited Speaker of the ICM in Toronto.^[4] In 1930, he developed the special theory of limitants.^[5]

Koyalovich lived and died in St. Petersburg (also known as Petrograd and Leningrad during his lifetime) on December 29, 1941.^[6] He played in many of the city's chess tournaments, taking 4th place in 1901 (Sergey Lebedev won), 3rd in 1902 (Mikhail Chigorin and Alexander Levin won),^[7] and 11th in 1903 (Grigory Helbach, Krzyzanowski and Emmanuel Schiffers won). In 1904 he competed at three events, tying for 4-5th in one (Eugene Znosko-Borovsky won), taking 5th in another (Chigorin won), and winning the third. He tied for 4-5th in 1905 (Chigorin won), tied for 8-9th in 1906 (Simon Alapin won), and tied for 5-6th in 1907 (Sergey von Freymann won).^[8]

He played in a friendly match St. Petersburg vs. Moscow in 1911 (won a game against Parfenov on board 7),^[9] and won a game against Alexander Alekhine in St. Petersburg in April 1912.^[10]

After World War I, he tied for 5-9th at Petrograd 1921 (R.R. Platz won), took 6th at Novgorod 1923/24 (Ilya Rabinovich won), took 9th at Leningrad 1925 (Solomon Gotthilf won), and tied for 6-7th at Leningrad 1925 (Efim Bogoljubow and Peter Romanovsky won).^[11]

Selected publications

• Теория вероятностей. Лекции, читанные в СПБ ин-те в 1892-93 уч. (Probability theory. Lectures read at the St. Petersburg Institute in 1892-93 academic year.) году. СПБ, лит. Ф. Кремера, 1893
• Исследования о дифференциальном уравнении ydy-ydx= Rdx. (Studies on the differential equation ydy-ydx = Rdx.) СПБ, тип. АН, 1894.
• Лекции по аналитической геометрии (в пространстве). (Lectures on analytic geometry (in space).) СПБ, лит. А. Иконникова, 1895.
• Лекции по математике (высшая алгебра), читанные на 1 курсе технол. (Lectures on mathematics (higher algebra), read at the 1st course of technology.) Ин-та проф. Б. М. Кояловичем в 1900-01 уч. Году. СПБ, лит. Я. Кровицкого, 1901.
• Об одном уравнении с частными производными четвертого порядка. (On a fourth-order partial differential equation.) СПБ, тип. АН, 1902
• Записки по дифференциальному исчислению. (Notes on differential calculus.) Курс. Доп. Кл. Константиновского арт. Училища. СПБ, лит. Константиновского арт. Училища, 1903.
• Теория дифференциальных уравнений. (The theory of differential equations.) СПБ, изд. Мл. класса Академии, 1908
• Интегральное исчисление. (Integral calculus.) СПБ, типо-лит. И. А. Трофимова, 1909.
• Конспект курса аналитической механики. (Abstract course of analytical mechanics.) СПБ, типо-лит. И. А. Трофимова, 1909.
• Аналитическая геометрия. (Analytic geometry.) Пб, Academia, 1922