Consideration was given to an autonomous model containing coupled subsystems (MCCS) and, in the absence of couplings between the subsystems, falling down into systems of ordinary differential equations. It is assumed that the subsystems admit different types of nondegenerate single-frequency oscillations. Solved were the problems of oscillations in MCCS, their stability, and stabilization of MCCS oscillation by smooth autonomous coupling controls. It was shown how the developed theory is applied to the coupled Duffing and Van der Pol oscillators.

Using automatic instead of automated tools is assumed to significantly reduce timing budgets needed for the actualization. However, it seems to be not always the case, especially if we consider the complete actualization cycle. The article presents an investigation of the time needed for the information base actualization when using separate automated or automatic tools, as well as the time needed for the complete actualization cycle. A brief review of the Upper Level Control System information base, whose timing budgets were investigated, is also presented.

Nowadays there is no single definition of high-frequency traders (HFT). In this paper HFT were classified as traders that have low value of the average of 10% of shortest position holding times, low value of the average of the ratios of end-of-day position to volume traded and high ratio of canceled orders to submitted orders. For these ratios, the fuzzy membership functions were constructed based on the analysis of the related literature. Then, for various cutoffs of membership functions, traders were classified as HFT or non-HFT. For given set of features and membership functions the share of HFT volume traded at USDRUB_TOM at MOEX FX Market (March-May 2017) was estimated between 40% and 60%.

Problems of developing a methodology and tools for managing the development of large-scale systems for solving strategic tasks in the management of industrial and transport development in Russia considered.