-
1
-
-
0001012446
-
On limit cycles of plane quadratic systems
-
Shi, S. L.: On limit cycles of plane quadratic systems. Sci. Sinica, 24, 153-159 (1981)
-
(1981)
Sci. Sinica
, vol.24
, pp. 153-159
-
-
Shi, S.L.1
-
2
-
-
0008988961
-
On the uniqueness of limit cycle and stability of separatrix cycle for a quadratic system with weak saddle
-
Zhang, P. G.: On the uniqueness of limit cycle and stability of separatrix cycle for a quadratic system with weak saddle. Northeastern Math. J., 6(2), 243-252 (1990)
-
(1990)
Northeastern Math. J.
, vol.6
, Issue.2
, pp. 243-252
-
-
Zhang, P.G.1
-
3
-
-
0003264465
-
Theory of limit cycle
-
Amer. Math. Soc.
-
Ye, Y. Q. et al.: Theory of Limit Cycle. Translation of Math. Monographs, Amer. Math. Soc., 66, (1986)
-
Translation of Math. Monographs
, vol.66
, pp. 1986
-
-
Ye, Y.Q.1
-
4
-
-
0004051023
-
Qualitative theory of differential equation
-
Science Press, Beijing
-
Zhang, Z. F. et al.: Qualitative Theory of Differential Equation, Modern Math. Basic Series, Science Press, Beijing, 1985
-
(1985)
Modern Math. Basic Series
-
-
Zhang, Z.F.1
-
5
-
-
4744362634
-
Quadratic systems with 3rd-order(or 2nd-order) weak focus
-
Zhang, P. G.: Quadratic systems with 3rd-order(or 2nd-order) weak focus. Ann. of Diff. Eqs., 17(3), 287-294 (2001)
-
(2001)
Ann. of Diff. Eqs.
, vol.17
, Issue.3
, pp. 287-294
-
-
Zhang, P.G.1
-
6
-
-
84978966758
-
Quadratic systems with a weak focus and a strong focus
-
Zhang, P. G.: Quadratic systems with a weak focus and a strong focus. Appl. Math. J. Chinese Univ. Ser. B, 14(1), 7-14 (1999)
-
(1999)
Appl. Math. J. Chinese Univ. Ser. B
, vol.14
, Issue.1
, pp. 7-14
-
-
Zhang, P.G.1
-
7
-
-
4744366643
-
On the concentrative distribution and uniqueness of limit cycles for a quadratic system, Dynamical
-
Tianjing China, Sept., 1990-1991, World Sci. Pallco. Ptc. Ltd., Singapore
-
Zhang, P. G.: On the concentrative distribution and uniqueness of limit cycles for a quadratic system, Dynamical, Proc. Prog. Nankai Inst. of Math., Tianjing China, Sept., 1990-1991, World Sci. Pallco. Ptc. Ltd., Singapore, 4, 297-310 (1993)
-
(1993)
Proc. Prog. Nankai Inst. of Math.
, vol.4
, pp. 297-310
-
-
Zhang, P.G.1
-
8
-
-
0003388511
-
A quadratic system with weak saddle
-
Cai, S. L., Zhang, P. G.: A quadratic system with weak saddle. J. Math. Res. Exposition, (1), 63-68 (1987)
-
(1987)
J. Math. Res. Exposition
, Issue.1
, pp. 63-68
-
-
Cai, S.L.1
Zhang, P.G.2
-
9
-
-
84979031564
-
On number of limit cycle for the quadratic system with a weak focus and a strong focus
-
Zhang, P. G., Zhao, S. Q.: On number of limit cycle for the quadratic system with a weak focus and a strong focus. Appl. Math. J. Chinese Univ. Ser. B, 16(2), 127-132 (2001)
-
(2001)
Appl. Math. J. Chinese Univ. Ser. B
, vol.16
, Issue.2
, pp. 127-132
-
-
Zhang, P.G.1
Zhao, S.Q.2
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