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pro vyhledávání: '"Vitaly G. Il'ichev"'
Autor:
Vitaly G. Il’ichev, Dmitry B. Rokhlin
Publikováno v:
Mathematics, Vol 12, Iss 1, p 125 (2023)
We demonstrate a basic technique for simplifying time-periodic competition models, which is based on the utilization of periodic delta functions as population growth rates. We show that the Poincare mapping splits into a sequence of one-dimensional m
Externí odkaz:
https://doaj.org/article/4c27381a48ab4717911741362bdf0145
Autor:
Vitaly G. Il’ichev, Dmitry B. Rokhlin
Publikováno v:
Mathematics, Vol 10, Iss 11, p 1860 (2022)
Within the framework of traditional fishery management, we propose an interpretation of natural resource prices. It leads to an economic taxation mechanism based on internal prices and reduces a complex problem of optimal long-term exploitation to a
Externí odkaz:
https://doaj.org/article/0b422f4ff6d64d28a515fdc64d593d85
Autor:
Vitaly G. Il’ichev
Publikováno v:
Ecological Modelling. 216:188-196
We propose special models (the so-called D-systems) with periodic delta-functions being used as the growth velocities of the populations. This allows to build, in a practically explicit form, corresponding Poincare mapping and to reveal a series of
Autor:
Vitaly G. Il'ichev
Publikováno v:
Ecological Modelling. 93:191-201
Mathematical problems of biological competition in a periodically changing environment are considered. A selection criterion is obtained within the framework of the model scheme of Contois: for domination in a changing environment it is not sufficien