Qualitative theory of dynamical systems

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  Año 2002, Vol. 3, Número 2

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    Successive versal unfoldings for Rank-2 singularities of positive quadratic differential forms

    Eduardo Sáez, V. Guíñez

    págs. 285-308

    
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    Topological equivalence for saddle connections

    Clementa Alonso González

    págs. 309-324

    
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    A polynomial bound for the lap number

    Mathieu Baillif

    págs. 325-330

    
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    Center conditions for a lopsided quintic polynomial vector field

    Nazim Salih, Roland Pons

    págs. 331-344

    
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    Some Lower Bounds for H(n) in Hilbert's 16th problem

    H.S.Y. Chan, K.W. Chung, Jibin Li

    págs. 345-360

    
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    About homotopy classes of non-singular vector fields on the three-sphere

    Emmamuel Dufraine

    págs. 361-376

    
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    Computing simplest normal forms for the Takens--Bogdanov singularity

    Estanislao Gamero Gutiérrez , Antonio Algaba Durán , Emilio Freire Macías

    págs. 377-436

    
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    On the distribution and number of limit cycles for quadratic systems with two foci

    Zhang Pingguang

    págs. 437-463