Alexey Andreev’s research while affiliated with St Petersburg University and other places

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Publications (2)


Table 3 [5].
Phase Portraits of Cubic Dynamic Systems in a Poincare Circle
  • Chapter
  • Full-text available

May 2018

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51 Reads

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9 Citations

Irina Andreeva

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Alexey Andreev
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Investigation of a family of cubic dynamic systems

December 2017

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7 Reads

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15 Citations

A family of dynamic systems acting on a real plane x , y has been considered, which polynomial right parts are reciprocal forms of x and y , one is a cubic, and another is a square form. A problem to reveal all topologically different phase portraits possible for these systems in a Poincare circle with coefficient criteria of every portrait’s realization has been solved. A Poincare method of serial mappings – central and orthogonal – has been applied. Qualitative and quantitative results for phase portraits have been given. All stages of a solution process are described.

Citations (2)


... A detailed analysis of possible topological types of the point O(0; 0) was performed in [8,9,13,16,17]. It was proved that the systems (1) do not have limit cycles on the plane R 2 ...

Reference:

Qualitative Research in the Poincaré Disk of One Family of Dynamical Systems
Phase Portraits of Cubic Dynamic Systems in a Poincare Circle