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Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series

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CONSTRUCTION OF SOLUTIONS WITH THE GIVEN LIMIT PROPERTIES FOR THE SYSTEMS DESCRIBING THE CHEMOSTAT MODELS

Abstract

A system of three differential equations describing the process of continuous bacteria cultivation in a chemostat is considered. For a simple food chain described by the dynamic Michaelis-Menten chemostat model a two-parameter analytical solution is obtained. An algorithm and software allowing one to find an explicit form of solutions with the given limit properties have been constructed with the usage of the CAS Mathematica capabilities. Examples, in which it is possible to model the survival or extinction of one or two microorganisms and to find initial concentration ranges, provide “competitive exclusion” or coexistence of the both organisms, are given.

About the Authors

A. V. Chichurin
A.S. Pushkin Brest State University
Belarus


A. N. Shvychkina
A.S. Pushkin Brest State University
Belarus


References

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5. Chichurin, A., Shvychkina A. Finding the solutions with the infinite limit properties for the third order normal system of differential equations using the Mathematica system // 7th International Symposium on Classical and Celestial Mechanics (ССМЕСН’2011) (Siedlece, 24-28 Oct. 2011): Book of the Abstracts. Wydawnictwo Collegium Mazovia, Siedlce, 2011. P. 23-24.

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ISSN 1561-2430 (Print)
ISSN 2524-2415 (Online)