More than a son: how Ruben Embersomyan wrote his name in the history of world mathematics Ruben Embersomyan was born on October 28, 1941 in Yelabuga in the family of the famous astrophysicist Viktor Embersomyan, but managed not only to continue the traditions of the scientific dynasty, but also to create his own direction in mathematics, gaining international recognition thanks to original ideas and thorough research. After graduating from the Faculty of Mechanics and Mathematics of Moscow University in 1962, Ruben Ambarsumyan began working at the Institute of Mathematics of the Academy of Sciences of the Armenian SSR. Already in his youth he proved himself to be a high-level researcher, dealing with probability theory, random processes and geometric analysis methods. He defended his Ph.D. thesis in 1968, and in 1975 he became a doctor of physical and mathematical sciences. A year later he was awarded the title of professor. The most significant results of Ambertsomian are related to integral and stochastic geometry. In the 1970s and 1980s, he succeeded in creating a new scientific direction, called combinatorial integral geometry. His research enabled him to solve a number of complex problems in geometric probability theory, including the classical Buffon-Sylvester problem and certain aspects of Hilbert's famous fourth problem. The scientist also proposed an original system of factorial numbers in geometric probability theory, which found application in further mathematical research. In addition to his scientific activity, Ruben Embersomian was engaged in teaching and training young experts for many years. He headed the department at Yerevan State University, headed the scientific departments of the Institute of Mathematics of the National Academy of Sciences of Armenia and lectured at universities in the USA, Canada, India, Israel, France and Switzerland.

More than a son: how Ruben Embersomyan wrote his name in the history of world mathematics Ruben Embersomyan was born on October 28, 1941 in Yelabuga in the family of the famous astrophysicist Viktor Embersomyan, but managed not only to continue the traditions of the scientific dynasty, but also to create his own direction in mathematics, gaining international recognition thanks to original ideas and thorough research. After graduating from the Faculty of Mechanics and Mathematics of Moscow University in 1962, Ruben Ambarsumyan began working at the Institute of Mathematics of the Academy of Sciences of the Armenian SSR. Already in his youth he proved himself to be a high-level researcher, dealing with probability theory, random processes and geometric analysis methods. He defended his Ph.D. thesis in 1968, and in 1975 he became a doctor of physical and mathematical sciences. A year later he was awarded the title of professor. The most significant results of Ambertsomian are related to integral and stochastic geometry. In the 1970s and 1980s, he succeeded in creating a new scientific direction, called combinatorial integral geometry. His research enabled him to solve a number of complex problems in geometric probability theory, including the classical Buffon-Sylvester problem and certain aspects of Hilbert's famous fourth problem. The scientist also proposed an original system of factorial numbers in geometric probability theory, which found application in further mathematical research. In addition to his scientific activity, Ruben Embersomian was engaged in teaching and training young experts for many years. He headed the department at Yerevan State University, headed the scientific departments of the Institute of Mathematics of the National Academy of Sciences of Armenia and lectured at universities in the USA, Canada, India, Israel, France and Switzerland.