Supported by the NNSF of China(10471076), the NSF of Shandong Province(Y2004A06) and the Key Project of the Ministry of Education of China(206091).Acknowledgements. The author thank the anonymous refe
This paper analyses the local behavior of the simple off-diagonal bivariate quadratic function approximation to a bivariate function which has a given power ser
In 1979,Jurek gave a characterization of the moment of a full operator-stable μ by eigenvalues of exponent matrix of μ. Here, a characterization of the moment
In this paper,the bifurcation problems of twisted and degenerated homoclinic loop for higher dimensional systems are studied.Under the nonrsonant condition,the