Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sergey A. Kashchenko"'
Publikováno v:
Моделирование и анализ информационных систем, Vol 27, Iss 3, Pp 344-355 (2020)
The logistic equation with delay or Hutchinson’s equation is one of the fundamental equations of population dynamics and is widely used in problems of mathematical ecology. We consider a family of mappings built for this equation based on central s
Externí odkaz:
https://doaj.org/article/e59c6e45f7f2471cb0276c29659ad388
Publikováno v:
Моделирование и анализ информационных систем, Vol 25, Iss 1, Pp 71-82 (2018)
We consider electro-optic oscillator model which is described by a system of the delay differential equations (DDE). The essential feature of this model is a small parameter in front of a derivative that allows us to draw a conclusion about the actio
Externí odkaz:
https://doaj.org/article/92de8fcccf1c4f78a2a3e5dcf0335f52
Autor:
Sergey A. Kashchenko
Publikováno v:
Моделирование и анализ информационных систем, Vol 24, Iss 5, Pp 537-549 (2017)
The stability of the solutions of the linear equations arising in the theory of twodimensional digital filtration is studied. The different statements of the initial value problem are analysed. As the basic results, the corresponding stability criter
Externí odkaz:
https://doaj.org/article/7bc7b10fe63548a783835aeecb20ca9d
Autor:
Sergey A. Kashchenko
Publikováno v:
Моделирование и анализ информационных систем, Vol 24, Iss 2, Pp 168-185 (2017)
The article considers bifurcation problems for a logistic equation with delay at small perturbations. The most interesting results are for the case when small perturbations contain a large delay. The main results are special nonlinear equations of ev
Externí odkaz:
https://doaj.org/article/1ccaf409088f43f6acff415ecd0f91a2
Autor:
Sergey A. Kashchenko
Publikováno v:
Моделирование и анализ информационных систем, Vol 24, Iss 1, Pp 13-30 (2017)
The article considers asymptotic distribution of characteristic constants in periodic and antiperiodic boundary-value problems for the second-order linear equation with periodic coefficients. It allows getting asymptotics of stability and instability
Externí odkaz:
https://doaj.org/article/dfa0a0119f234445a26cf87d0a758aa2
Publikováno v:
Клио. :130-137
Publikováno v:
Ural Historical Journal. 66:7-17
Autor:
Sergey A. Kashchenko
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Bylye Gody, Vol 43, Iss 1, Pp 169-178 (2017)
Historical demographic research plays an important role in multi-disciplinary projects in historical, social and political sciences at the moment. It is of great importance for migration and social policy studies and also concerns economics, material