Domain Structure Formation in Designing of the Opened Informative Measuring Systems

The opened systems possess an increasing significance and possibilities of applying in designing of measuring devices. Now an essentially nonlinear models are used for such systems. The perturbation approach is not enough for these purposes. Models of new types have solutions in a form of soliton or...

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Main Author: M. A. Knyazev
Format: Article
Language:English
Published: Belarusian National Technical University 2022-12-01
Series:Pribory i Metody Izmerenij
Subjects:
Online Access:https://pimi.bntu.by/jour/article/view/787
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author M. A. Knyazev
author_facet M. A. Knyazev
author_sort M. A. Knyazev
collection DOAJ
description The opened systems possess an increasing significance and possibilities of applying in designing of measuring devices. Now an essentially nonlinear models are used for such systems. The perturbation approach is not enough for these purposes. Models of new types have solutions in a form of soliton or kink and similar objects. The equation of Fisher–Kolmogorov–Petrovskii–Piskunov is one of such equations. This equation is used for description of convection-reaction-diffusion processes. Such processes are used for studying of a self-organisation and formation of a structure in non-equilibrium opened systems. The aim of this work was to construct of a new solution for the modified equation of Fisher–Kolmogorov– Petrovskii–Piskunov in which a space inhomogeneity is accounted.To solve this problem the direct Hirota method for nonlinear partial differential equation is applied.Some modifications into this method were introduced.The new topologically non-trivial solution of the modified Fisher–Kolmogorov–Petrovskii–Piskunov equation is constructed explicitly. This solution has a kink-like form. Some arguments on the stability of such solution are considered.A possibility of domain structure formation in the systems which describe by the Fisher–Kolmogorov– Petrovskii–Piskunov equation is demonstrated.
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spelling doaj.art-67d014e3892c48ab86898239c461e1692023-03-13T09:14:48ZengBelarusian National Technical UniversityPribory i Metody Izmerenij2220-95062414-04732022-12-0113425626210.21122/2220-9506-2022-13-4-256-262594Domain Structure Formation in Designing of the Opened Informative Measuring SystemsM. A. Knyazev0Белорусский национальный технический университетThe opened systems possess an increasing significance and possibilities of applying in designing of measuring devices. Now an essentially nonlinear models are used for such systems. The perturbation approach is not enough for these purposes. Models of new types have solutions in a form of soliton or kink and similar objects. The equation of Fisher–Kolmogorov–Petrovskii–Piskunov is one of such equations. This equation is used for description of convection-reaction-diffusion processes. Such processes are used for studying of a self-organisation and formation of a structure in non-equilibrium opened systems. The aim of this work was to construct of a new solution for the modified equation of Fisher–Kolmogorov– Petrovskii–Piskunov in which a space inhomogeneity is accounted.To solve this problem the direct Hirota method for nonlinear partial differential equation is applied.Some modifications into this method were introduced.The new topologically non-trivial solution of the modified Fisher–Kolmogorov–Petrovskii–Piskunov equation is constructed explicitly. This solution has a kink-like form. Some arguments on the stability of such solution are considered.A possibility of domain structure formation in the systems which describe by the Fisher–Kolmogorov– Petrovskii–Piskunov equation is demonstrated.https://pimi.bntu.by/jour/article/view/787уравнение фишера–колмогорова–петровского–пискуноваметод хиротыкинк
spellingShingle M. A. Knyazev
Domain Structure Formation in Designing of the Opened Informative Measuring Systems
Pribory i Metody Izmerenij
уравнение фишера–колмогорова–петровского–пискунова
метод хироты
кинк
title Domain Structure Formation in Designing of the Opened Informative Measuring Systems
title_full Domain Structure Formation in Designing of the Opened Informative Measuring Systems
title_fullStr Domain Structure Formation in Designing of the Opened Informative Measuring Systems
title_full_unstemmed Domain Structure Formation in Designing of the Opened Informative Measuring Systems
title_short Domain Structure Formation in Designing of the Opened Informative Measuring Systems
title_sort domain structure formation in designing of the opened informative measuring systems
topic уравнение фишера–колмогорова–петровского–пискунова
метод хироты
кинк
url https://pimi.bntu.by/jour/article/view/787
work_keys_str_mv AT maknyazev domainstructureformationindesigningoftheopenedinformativemeasuringsystems