Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Sabah Benadouane"'
Publikováno v:
Mathematica Bohemica, Vol 146, Iss 2, Pp 151-165 (2021)
We consider limit cycles of a class of polynomial differential systems of the form \begin{cases} \dot{x}=y, \dot{y}=-x-\varepsilon(g_{21}( x) y^{2\alpha+1} +f_{21}(x) y^{2\beta})-\varepsilon^2(g_{22}( x) y^{2\alpha+1}+f_{22}( x) y^{2\beta}), \end{cas
Externí odkaz:
https://doaj.org/article/3b677d543f87443ea1b49cb7818f5ea0
Publikováno v:
Tatra Mountains Mathematical Publications. 79:33-46
The problems of existence of limit cycles and their numbers are the most difficult problems in the dynamical planar systems. In this paper, we study the limit cycles for a family of polynomial differential systems of degree 6k + 1, k ∈ ℕ*, with t
Publikováno v:
Novi Sad Journal of Mathematics.
Publikováno v:
Mathematica Bohemica, Vol 146, Iss 2, Pp 151-165 (2021)
We consider limit cycles of a class of polynomial differential systems of the form \begin{cases} \dot{x}=y, \dot{y}=-x-\varepsilon(g_{21}( x) y^{2\alpha+1} +f_{21}(x) y^{2\beta})-\varepsilon^2(g_{22}( x) y^{2\alpha+1}+f_{22}( x) y^{2\beta}), \end{cas