TY - JOUR T1 - Infinitely Remote Singularities of Special Differential Dynamic Systems AU - Andreeva, İrina PY - 2018 DA - December JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 1 EP - 7 IS - 4 LA - en AB - The work is devoted to the results of a fundamental study on thearithmetical plane of a broad special family of differential dynamic systemshaving polynomial right parts. Let those polynomials be a cubic and a squarereciprocal forms. A task of a whole investigation was to find out alltopologically different phase portraits in a Poincare circle and indicate closeto coefficient criteria of them. To achieve this goal a Poincare method of thecentral and the orthogonal consecutive displays (or mappings) has been used. Asa rezult more than 250 topologically different phase portraitsin a total have been constructed. Every portrait we depict with a special tablecalled a descriptive phase portrait. Each line of such a special tablecorresponds to one invariant cell of the phase portrait and describes itsboundary, a source of its phase flow and a sink of it. All finite andinfinitely remote singularities of dynamic systems under consideration werefully investigated. Namely infinitely remote singularities are discussed in thepresent article. KW - Dynamic systems KW - Phase portraits KW - Phase flows KW - Poincare sphere KW - Poincare circle KW - Singular points KW - Separatrices KW - Trajectories CR - Andronov, A.A., Leontovich, E.A., Gordon, I.I., & Maier, A.G. (1973). Qualitative theory of second-order dynamic systems. New York, NY: Wiley. Andreev, A.F., & Andreeva, I.A. (1997). On limit and separatrix cycles of a certain quasiquadratic system. Differential Equations, 33 (5), 702 – 703. Andreev, A.F., & Andreeva, I.A. (2007). Local study of a family of planar cubic systems. Vestnik St. Petersburg University: Ser.1. Mathematics, Mechanics, Astronomy, 2, 11- 16. DOI: 10.3103/S1063454107020021, EID: 2-s2.0-84859730890. Andreev, A.F., Andreeva, I.A., Detchenya, L.V., Makovetskaya, T.V., & Sadovskii, A.P. (2017). Nilpotent Centers of Cubic Systems. Differential Equations, 53(8), 1003 - 1008. DOI: 10.1134/S0012266117080018, EID: 2-s2.0-85029534241. Andreev, A.F., & Andreeva, I.A. (2007). Phase flows of one family of cubic systems in a Poincare circle. I. Differential Equations and Control, 4, 17-26. Andreev, A.F., & Andreeva, I.A. (2008). Phase flows of one family of cubic systems in a Poincare circle. II. Differential Equations and Control, 1, 1 - 13. Andreev, A.F., & Andreeva, I.A. (2008). Phase flows of one family of cubic systems in a Poincare circle. III. Differential Equations and Contro/, 3, 39 - 54. Andreev, A.F., & Andreeva, I.A. (2009). Phase flows of one family of cubic systems in a Poincare circle. Differential Equations and Control, 4, 181 - 213. Andreev, A.F., &Andreeva, I.A. (2010). Phase flows of one family of cubic systems in a Poincare circle. Differential Equations and Control, 4, 6- 17. Andreev, A.F., & Andreeva, I.A. (2017). Investigation of a Family of Cubic Dynamic Systems. Vibroengineering Procedia, 15, 88 – 93. DOI: 10.21595/vp.2017.19389. UR - https://dergipark.org.tr/en/pub/epstem/issue//492290 L1 - https://dergipark.org.tr/en/download/article-file/588635 ER -