There, at that time, under the leadership of Mstislav Keldysh, computational work on the atomic project was unfolding, and Chentsov was assigned to the group of Israel Gelfand.
Chentsov participated in the development of algorithms and calculations in problems of transfer and scattering of radiation according to the instructions of Ya.
[2] Chentsov took part in the pioneering work on the calculation of unsteady gas-dynamic flow during the movement of an axisymmetric shock wave.
In this work, an original method of mathematical description of two-dimensional flow and a computational algorithm for solving similar problems were developed and implemented.
Chentsov's work on the weak convergence of random processes[5] provided the simplest justification for the heuristic principle of Joseph L. Doob for calculating asymptotic criteria of the Kolmogorov–Smirnov test by the limiting transition from the central empirical distribution function to the Brownian bridge.