Collectanea mathematica

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  Año 1999, Vol. 50, Número 2

  • Transversal intersection of separatrices and branching of solutions as obstructions to the existence of an analytic integral in many-dimensional systems. I. Basic result: separatrices of hyperbolic periodic points

    Sergei A. Dovbysh

    • Resumen
    • Texto completo

    págs. 119-198

    

  • Oscillation of first order neutral differential equations with positive and negative coefficients

    Jurang Yan, Wantong Li

    • Resumen
    • Texto completo

    págs. 199-210

    

  • Decomposable subbundles of polystable vector bundles on projective curves

    Edoardo Ballico

    • Resumen
    • Texto completo

    págs. 211-220