-
1
-
-
33847683977
-
The geometry of quadratic differential systems with a weak focus of second order
-
DOI 10.1142/S0218127406016720, PII S0218127406016720
-
Artes, J. C. & Llibre, J. [2006] "The geometry of quadratic differential systems with a weak focus of second order," Int. J. Bifurcation and Chaos 16, 3127-3194. (Pubitemid 46357326)
-
(2006)
International Journal of Bifurcation and Chaos
, vol.16
, Issue.11
, pp. 3127-3194
-
-
Aktes, J.C.1
Llibre, J.2
Schlomiuk, D.3
-
2
-
-
77955227035
-
The number of limit cycles appeared under changes of coefficients from a focus or center type equilibrium
-
Bautin, N. N. [1934] "The number of limit cycles appeared under changes of coefficients from a focus or center type equilibrium," Dokl. AN SSSR 24, 668-671.
-
(1934)
Dokl. AN SSSR
, vol.24
, pp. 668-671
-
-
Bautin, N.N.1
-
3
-
-
0000255706
-
On the number of limit cycles which appear with the variation of the coefficients from an equilibrium position of focus or center type
-
Bautin, N. N. [1954] "On the number of limit cycles which appear with the variation of the coefficients from an equilibrium position of focus or center type," Transl. Amer. Math. Soc. 1, 396-413.
-
(1954)
Transl. Amer. Math. Soc.
, vol.1
, pp. 396-413
-
-
Bautin, N.N.1
-
4
-
-
10344239862
-
Quadratic systems with limit cycles of normal size Buletinul Academici de sciinte Moldova
-
Cherkas, L. A., Artes, J. C. & Llibre, J. [2003] "Quadratic systems with limit cycles of normal size," Buletinul Academici de sciinte Moldova. Matematica 1, 31-46.
-
(2003)
Matematica
, vol.1
, pp. 31-46
-
-
Cherkas, L.A.1
Artes, J.C.2
Llibre, J.3
-
5
-
-
45149094783
-
Hilberts 16th problem for quadratic systems. New methods based on a transformation to the lienard equation
-
Leonov, G. A. [2008] "Hilberts 16th problem for quadratic systems. New methods based on a transformation to the lienard equation," Int. J. Bifurcation and Chaos 18, 877-884.
-
(2008)
Int. J. Bifurcation and Chaos
, vol.18
, pp. 877-884
-
-
Leonov, G.A.1
-
6
-
-
66449106381
-
Limit cycles of lienard equation with discontinuous coefficients
-
Leonov, G. A. [2009] "Limit cycles of lienard equation with discontinuous coefficients," Dokl. Phys. 54, 238-241.
-
(2009)
Dokl. Phys.
, vol.54
, pp. 238-241
-
-
Leonov, G.A.1
-
7
-
-
77950385744
-
Necessary and sufficient conditions for the boundedness of solutions of two-dimensional quadratic systems in positively invariant palf-plane
-
Leonov, G. A. [2010] "Necessary and sufficient conditions for the boundedness of solutions of two-dimensional quadratic systems in positively invariant palf-plane," Dokl. Math. 81, 1-3.
-
(2010)
Dokl. Math.
, vol.81
, pp. 1-3
-
-
Leonov, G.A.1
-
8
-
-
0001012446
-
A concrete example of the existence of four limit cycles for planar quadratic systems
-
Shi, S. [1980] "A concrete example of the existence of four limit cycles for planar quadratic systems," Sci. Sin. 23, 153-158.
-
(1980)
Sci. Sin.
, vol.23
, pp. 153-158
-
-
Shi, S.1
-
9
-
-
49049152726
-
A method of constructing cycles without contact around a weak focus
-
Shi, S. [1981] "A method of constructing cycles without contact around a weak focus," J. Diff. Eqs. 41, 301-312.
-
(1981)
J. Diff. Eqs.
, vol.41
, pp. 301-312
-
-
Shi, S.1
|