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KIAM Preprint № 6, Moscow, 1969
Authors: Molchanov A.M.
Normal Form of a Nonlinear System Near a Critical Point
A rough system containing a parameter may become a non-rough system at a critical value of the parameter. Reduction of such a system to the ordinary (linear) normal form is impossible without special features (such as poles) in the change of variables. It is shown that a (nonlinear) generalization of the concept of the normal form allows us to use only smooth (by the independent variables and parameter) transformations. Integration of the proposed normal form is reduced to a series of quadratures. Such a formulation of the problem is caused by the need to study oscillatory biochemical systems, especially the variety of types of oscillatory excitation.
Publication language: russian,  pages: 29
Research direction:
Mathematical modelling in actual problems of science and technics
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  • Molchanov A.M.