Ukrainian Virtual Observatory

Ryabov Yury Aleksandrovich

General data:

Born: 15.06.1923

Place of birth: Kharkiv City, Kharkiv province, Ukrainian SSR

Studied in: A. M. Gorky Kharkiv State University (since 1999 V. N. Karazin Kharkiv National University) (1940-1941); M. V. Lomonosov Moscow State University (1846-1952);

Key interests: celestial mechanics, minor bodies of the Solar System, mathematisc, astronomy. PhD Thesis: On the analytical theory of motion of small planets of the Trojan group (1953 );

Biography:

He was born on June 15, 1923 in the Kharkiv city of Kharkiv province of the Ukrainian SSR, in the family of a novice doctor and future teacher of the Kharkiv Medical Institute. In 1940, Yu.A. Ryabov graduated from school and was accepted without entrance exams to A. M. Gorky Kharkiv State University at the Faculty of Physics and Mathematics. In June 1941, he managed to finish the first course, passing the final exam in higher algebra on June 25. And ten days earlier, he passed the last exam at the Kharkiv Music School (ten years old) in the piano class. Apparently, until June 22, he was still building some musical and mathematical plans. During the war, Yu.A. Ryabov served first as a private in the anti-aircraft regiment, then as a cadet in military translation courses, and was a translator in a special radio brigade on three Belarusian fronts. After the war, he served as a translator in the Military Department of the Soviet Military Administration in Germany. In September 1946, he was demobilized to continue his studies, and in October 1946 he already became a second-year student of the Astronomical Department of the Faculty of Mechanics and Mathematics of M.V. Lomonosov Moscow State University Interest of Yu.A. Ryabov's interest in mathematics and astronomy led to the fact that after successfully completing the third year, he chose the specialty "celestial mechanics". In 1952, Yu.A. Ryabov graduated from Moscow State University named after M.V. Lomonosov at the Department of Celestial Mechanics, receiving a diploma with honors and performing in the fifth year under the guidance of H.M. Duboshina's diploma thesis "Stability of col-linear points of libration in the three-body problem". This was his first and original scientific research. On the recommendation of the Department of Celestial Mechanics Yu.A. Ryabov was accepted to graduate school. Its supervisors were professors H.M. Duboshyn and N.D. Moiseyev In 1952, Yu.A. Ryabov published his first scientific article based on the results of his thesis in the Astronomical Journal. In 1953, he successfully completed graduate studies and defended his candidate's thesis on the topic "On the Analytical Theory of the Motion of Small Planets of the Trojan Group" (according to other data, he studied at the graduate school of the Department of Celestial Mechanics of M. V. Lomonosov Moscow State University during 1950-1955), after which he was enrolled at the Sternberg State Astronomical Institute at the M.V. Lomonosov Moscow State University as a junior researcher at the Department of Celestial Mechanics. In the thesis of Yu.A. Ryabov obtained interesting results of the movement of asteroids, and then published three articles in the Astronomical Journal. In the last of them, "On some methods of constructing intermediate orbits for small planets of the Trojan group, part II", a literal solution of the equations of motion of a small planet is given. In this solution, the dependence of the sought unknowns (elements of the planet's orbit) on time and their initial values is determined by formulas in which the initial values are denoted by letters. Such solutions are of much greater interest in celestial mechanics than solutions determined by numerical initial values of the unknowns. During 1955-1963, he worked as a senior teacher, and then as an associate professor of the Department of Advanced Mathematics of the All-Union Correspondence Energy Institute. From 1963 to 1965, Protyashg was an associate professor at the Department of Celestial Mechanics at M. V. Lomonosov Moscow State University. In 1963, he defended his doctoral thesis at the M.V. Lomonosov Moscow State University on the application and development of Lyapunov-Poincaré methods for the construction and analysis of solutions in the problems of nonlinear oscillations, celestial mechanics, and systems with a delay." In 1965, he was awarded the title professor. From 1965 to 1971, he was the head of the Department of Computational Mathematics and Probability Theory of the Peoples' Friendship University named after Patrice Lumumba. Siunce 1971 to 1993, he was the head of the Department of Higher Mathematics of the Moscow Road Institute, and since 1993 he has been a professor of this department. In 1992 was awarded the title of Honored Scientist of the Russian Federation in 2006. He was elected a full member of the Russian Academy of Natural Sciences (RAS) in 2006. Yu.AF. Ryabov published independently and together with his colleagues and students more than 15 monographs and popular science books, more than 150 scientific and popular science articles, study guides, as well as English and French translations of scientific books , belonging to general astronomy, to various tasks of celestial mechanics and nonlinear oscillations, to mathematical physics, to analytical and qualitative methods of the theory of ordinary differential equations, to numerical methods, to computer programming and computer algebra, to a number of sections of the general course of higher education mathematicians Yu.A. Ryabov took an active part in many national and foreign congresses, conferences on astronomy, mathematics, and mechanics starting Since 1952. Since 1965, he has been a permanent member of the editorial board of the magazine "Earth and Universe".

Main publications:
  1. Рябов Ю. А. Движения небесных тел.-М.: Главная редакция физико-математической литературы издательства "Наука", 1988. - 240 с
  2. Рябов Ю. А. Движения небесных тел.- 3-е издание, переработанное. -М.: Государственное издательство физико-математической литературы "Наука", 1977. - 208 с
  3. Рябов Ю. А. Движения небесных тел.-М.: Государственное издательство физико-математической литературы, 1962. - 216 с
  4. Гребеников Е. А., Рябов Ю. А. Поиски и открытия планет, 2-е изд., перераб и доп. - М.: Наука, 1984. - 224 c.

Sources:
  1 livelib.ru
  2 goodreads.com
  3 Юрий Александрович Рябов (к 85-летиш со дня рождения)/ГРЕБЕНИКОВ Е.А.//Земля и Вселенная, 2008