Makasyeyev Oleksandr
Candidate of physical and mathematical sciences
In 2009, he graduated from the Faculty of Physics and Mathematics of NTUU "KPI", majoring in "Mathematics". He defended his master's thesis on the topic "Universality of transitions to deterministic chaos in some non-ideal pendulum systems" under the supervision of A.Yu. Shvets.
The circle of scientific interests is related to the study of the peculiarities of the emergence and development of deterministic chaos in pendulum systems with limited excitation
In 2017, under the guidance of O.Yu. Shvetsa, thesis "Computer modeling of the impact of non-ideal excitation and delay factors on oscillations of pendulum systems" for the degree of Candidate of Physical and Mathematical Sciences.
He gave reports at leading international conferences on nonlinear dynamics.
Among the main scientific results, the following can be noted:
1. Construction of new maps of dynamic regimes for a non-ideal pendulum system.
2. The Feigenbaum constant was calculated for the "pendulum - electric motor" system and the universality class according to Feigenbaum of this system was established.
3. It is shown that in some cases the dynamics of the "pendulum - electric motor" system can be roughly approximated by a one-dimensional discrete mapping. An analytical representation of such a discrete mapping is obtained.
It has an h-index of 6