The 16th Northeast Asia Standards Cooperation Forum was held in South Korea from Jury 3 to 5, 2017,which was attended by about one hundred representatives from SAC,Japan and South Korea.
This paper is a brief survey of our recent study on the connection between two parts of Hilbert′s 16th problem and equivariant bifurcation problem. We hope to understand the following questions: can we use the period...This paper is a brief survey of our recent study on the connection between two parts of Hilbert′s 16th problem and equivariant bifurcation problem. We hope to understand the following questions: can we use the periodic solution family of ( m-1) degree planar Hamiltonian systems with Z q equivariant (or D q equivariant) symmetry to realize some schemes of ovals for planar algebraic curves? On the contrary, if an algebraic curve of degree m has maximal number of branches of ovals (it is called M -curve), can we make his all ovals become limit cycles of a planar polynomial system? What schemes of distribution of limit cycles can be realized by polynomial system.展开更多
Location:Grand-Epoch-City,Beijing,ChinaDate:19-22 October 2007The 16th Asian Congress of Surgery,the biennial congress of the Asian Surgical Association(ASA),will be held onFriday-Monday,19-22 October 2007 at Grand Ep...Location:Grand-Epoch-City,Beijing,ChinaDate:19-22 October 2007The 16th Asian Congress of Surgery,the biennial congress of the Asian Surgical Association(ASA),will be held onFriday-Monday,19-22 October 2007 at Grand Epoch City,Beijing,China,in conjunction with the 3rd ChineseSurgical Week.The Congress is co-organised by the ASA and the Chinese Surgical Society(CSS)of the ChineseMedical Association.展开更多
文摘The 16th Northeast Asia Standards Cooperation Forum was held in South Korea from Jury 3 to 5, 2017,which was attended by about one hundred representatives from SAC,Japan and South Korea.
文摘This paper is a brief survey of our recent study on the connection between two parts of Hilbert′s 16th problem and equivariant bifurcation problem. We hope to understand the following questions: can we use the periodic solution family of ( m-1) degree planar Hamiltonian systems with Z q equivariant (or D q equivariant) symmetry to realize some schemes of ovals for planar algebraic curves? On the contrary, if an algebraic curve of degree m has maximal number of branches of ovals (it is called M -curve), can we make his all ovals become limit cycles of a planar polynomial system? What schemes of distribution of limit cycles can be realized by polynomial system.
文摘Location:Grand-Epoch-City,Beijing,ChinaDate:19-22 October 2007The 16th Asian Congress of Surgery,the biennial congress of the Asian Surgical Association(ASA),will be held onFriday-Monday,19-22 October 2007 at Grand Epoch City,Beijing,China,in conjunction with the 3rd ChineseSurgical Week.The Congress is co-organised by the ASA and the Chinese Surgical Society(CSS)of the ChineseMedical Association.
