Lin Xiao-lin, Dang Xin-yi. On the(1,3)Distributions of Limit Cycles of Plane Gaudratic Systems[J]. Applied Mathematics and Mechanics, 1994, 15(5): 443-455.
Citation:
Lin Xiao-lin, Dang Xin-yi. On the(1,3)Distributions of Limit Cycles of Plane Gaudratic Systems[J]. Applied Mathematics and Mechanics, 1994, 15(5): 443-455.
Lin Xiao-lin, Dang Xin-yi. On the(1,3)Distributions of Limit Cycles of Plane Gaudratic Systems[J]. Applied Mathematics and Mechanics, 1994, 15(5): 443-455.
Citation:
Lin Xiao-lin, Dang Xin-yi. On the(1,3)Distributions of Limit Cycles of Plane Gaudratic Systems[J]. Applied Mathematics and Mechanics, 1994, 15(5): 443-455.
In this paper,(a)we rerise Theorem 2 of Ref [1] omit the condition V7>07>0.(b)we discuss the relative positions of six curvesM(s2,r)=0,J(s2,r)=0,L(s2,r)=0,T(s2,r)=0,s2=s> and s2=s Under the condition of the(1.3)distri-butions of limit cycles,we expand the variable regions of parameters(s,r)and clearly.show them in figure,(c)we study the(1,3)distributions of limit cycles of one kind quadratic systems with two singular points at the infinite: and(d)we give a generalmethod to discuss the(1,3)distibutions`of limit cycles of system(1.1)whatever there isone,two or three singular points at the infinite.