122 years ago today, April 25, 1903 (March 28, 1903 in the lunar calendar), the Soviet mathematician Kolmogorov was born. Kolmogorov, Soviet mathematician. Born on April 25, 1903 in Dumbav, Central Asia, he entered Moscow University to study in 1920 and studied at the age of 19.¦§. Luzin constructed a Lebesgue integrable function, and its Fourier series diverged almost everywhere, which made a significant contribution to solving the Luzin problem. In 1931, he served as a professor at Moscow University, in 1933, he served as director of the School of Mathematics at the school, and in 1939, he served as an academician of the Academy of Sciences of the Soviet Union. He made significant contributions to the creation of a series of important branches of modern mathematics. Kolmogorov established the axiom system of probability theory based on measure theory, laying the foundation of modern probability theory. He was also one of the founders of random process theory. His work included: basic work on the strong law of large numbers and the law of repeated logarithm in the 1920s; the axiom system of probability theory proposed in the article "Basic Concepts of probability theory" in 1933; the two basic equations of Markov processes established in the 1930s; The linear theory of weak stationary sequences is established by using the geometric theory of Hilbert space; In the 1940s, the weak limit theory of independent sums; the Kolmogorov statistics of empirical distributions were completed. Kolmogorov pioneered the perturbation theory of Hamiltonian systems and the ergodic theory of K (Kolmogorov) systems in dynamical systems. He combined classical mechanics with information theory, and in the 1950s solved the stability of asymmetric heavy rigid bodies rotating at high speed and the stability of magnetic field lines curved surfaces. Based on his work B.§ª. Arnold and J. K. Moser completed the KAM theory named after the initials of their three names. The K-entropy he introduced into dynamical systems and ergodic theory plays an important role in the analysis of internal instability problems of dynamical systems with strong randomness. In the mid-1950s, he pioneered an information-theoretical method of studying the properties of functions. He introduced ¦Å entropy to the set of distance spaces. His work and subsequent work solved and deepened Hilbert's 13th Problem (Using a function with fewer variables to represent a function with more variables). After the 1960s, he founded the theory of information algorithms. In 1980, he was awarded the Wolf Prize for his outstanding work on harmonic analysis, probability theory, ergodic theory, and dynamic systems. In addition, he has made significant contributions in the fields of information theory, mathematical logic algorithm theory, analytical set theory, turbulence mechanics, measure theory, topology and other fields. His work provides new methods and opens up new directions in a series of fields of mathematics, reveals the connections between different fields of mathematics, and provides them extensively and in-depth applications in physics, chemistry, biology, engineering, control theory, and computers. Application prospects in various disciplines such as computers. He attached great importance to mathematical education. Under his guidance, a large number of mathematicians made great achievements in different fields, including.§®. Gelfand, Beta.§ª. Arnold,.¦£. Sinaiyi and others. At the same time, he also attached great importance to basic education and even led the compilation of middle school mathematics textbooks. Kolmogorov was the most influential Soviet mathematician of the 20th century. He is also an academician or a member of the Royal Society of the United States, France, Italy, the Netherlands, the United Kingdom, and the Federal Republic of Germany. He is the recipient of the Order of Lenin three times. Comment: The most influential mathematician of the former Soviet Union in the 20th century has made many achievements