01013nam0-22003251i-450-9900013145904033210-387-97556-000131459FED01000131459(Aleph)000131459FED0100013145920000920d1991----km-y0itay50------baengSingular perturbation methods for ordina ry differential equationsRobert E. O'Mal leyNew York [etc.]Springer-Verlag1991VIII, 225 p.64 ill., 24 cmApplied mathematical sciences89With 64 illustrations.Equazioni differenzialiTeoria della perturbazione515.352O'malley,Robert E. J349292ITUNINARICAUNIMARCBK990001314590403321C-33-(898952MA1MA1Singular perturbation methods for ordina ry differential equations382782UNINAING01