Local codimension two bifurcation of maps,associated with Hopf-pitchfork case,is analyzed using the center manifold theorem and normal form method of maps.

The loca l bifurcation characteristic near by codimension two bifurcation point is discus sed,which testifies that the local dynamical behavior of map f(v ,X)may be known under the condition of cod.

Local bifurcation behavior of normal fo rm near by the point of codimension two bifurcation is discussed.

In this paper, on the basis of chaos synchronization of identical systems, the means of achieving chaos synchronization of unidentical systems is proposed, whose synchronous conditions, transverse bifurcation stability and riddled basin are presented also in detail.

Based on the improved Atiken iterative method and dimidiate method,a new algorithm of searching the root of nonlinear equation is given,the simulation results show that if using the new algorithm,the convergence speed is faster than the improved Atiken iterative method.

Method Total anthraquinones was extracted by pH grades extraction, and the effect on restraining bacterium was measured by bisection method.

A new method to construct nested interval-interval evolution algorithm is presented according to the questions that traditional bisection method has low convergence rate and low accuracy and search one root in some interval in constructing nested interval to solve equation.

To improve the GP,bisection method is employed to find an optimal step size so as to improve.

Application of dichotomy in physics experiments;

Academic Power Is Not An Opposite Conception With Administrative Power——question on dichotomy to academic power and administrative power;

The Dichotomy of Modern Economy: A Reconsideration of Economy Capitalization;