CODIMENSION

作品数：61被引量：66H指数：5
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Effects of second diffusing component and cross diffusion on primary and secondary thermoconvective instabilities in couple stress liquids被引量：1
《Applied Mathematics and Mechanics(English Edition)》2017年第11期1579-1600,共22页R.RAVI C.KANCHANA P.G.SIDDHESHWAR 
the University Grants Commission (UGC), New Delhi, India for supporting her research work with a Rajiv Gandhi National Fellowship
Linear and weakly nonlinear analyses are made for the Rayleigh-Benard convection in two-component couple-stress liquids with the Soret effect. Conditions for pitchfork, Hopf, Takens-Bogdanov, and codimension-two bifur...
关键词：codimension-two Eckhaus INVERTED LORENZ Newell-Whitehead-Segel Nusselt number Rayleigh-B^nard secondary instability Sherwood number Takens-Bogdanov ZIGZAG 
ADJOINT OPERATOR METHOD AND NORMAL FORMS OF HIGHER ORDER FOR NONLINEAR DYNAMICAL SYSTEM
《Applied Mathematics and Mechanics(English Edition)》1997年第5期449-461,共13页张伟 陈予恕 
Normal form theory is a very effective method when we study degenerate bifurcations of nonlinear dynamical systems. In this paper by using adjoint operator method, normal forms of order 3 and 4 for nonlinear dynamical...
关键词：nonlinear dynamical system adjoint operator method normal forms of order 3 and 4 degenerate bifurcation of codimension 3 universal unfolding 
CODIMENSION TWO BIFURCATIONS AND HOPF BIFURCATIONS OF AN IMPACTING VIBRATING SYSTEM
《Applied Mathematics and Mechanics(English Edition)》1996年第1期65-75,共11页谢建华 
Bifurcation problems of a spring-mass system vibrating against an infinite large plane are studied in this paper. It is shown that there exist phenomena of codimension two bifurcations when the ratios of frequencies a...
关键词：impacting vibration STABILITY codimension two bifurcation 
APPLICATIONS OF THE SIGNS OF MELNIKOV'S FUNCTION
《Applied Mathematics and Mechanics(English Edition)》1992年第10期947-950,共4页沈家骐 
The project is supported by the National Natural Science Foundation of China
The existence and stability ol periodic solutions for the two-dimensional system x' = f(x)+?g(x ,a), 0<ε<<1 ,a?R whose unperturbed systemis Hamiltonian can be decided by using the signs of Melnikov's function. The re...
关键词：Melnikov's function codimension two bifurcations of flows bifurcation set 
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